A.1 Abbreviations for SI Units Abbreviation SI Unit Abbreviation SI Unit °C degree Celsius kWh kilowatthour cal calorie L liter cm centimeter m meter cm2 square centimeter m2 square meter cm3 cubic centimeter m3 cubic meter d day mg milligram g gram Mg megagram (1000 kg or h hour metric ton) ha hectare MJ megajoule J joule mL milliliter Kilometer km 2. The kilogram (also kilogramme) is the base unit of mass in the International System of Units (SI), the current metric system, having the unit symbol kg. ›› Quick conversion chart of kilogram to metric tonne. are not. The prefixes have the same meaning for each of the measurement units. [18][19] When the United States Congress gave the metric system legal status in 1866, it permitted the use of the word kilo as an alternative to the word kilogram,[20] but in 1990 revoked the status of the word kilo. The practical units were obtained as decimal multiples of coherent CGS-EMU units, chosen so that the resulting magnitudes were convenient for practical use and so that the practical units were, as far as possible, coherent with each other. Meter m 5. The joule and the watt also have convenient magnitudes and are decimal multiples of CGS coherent units for energy (the erg) and power (the erg per second). Note that rounding errors may occur, so always check the results. [25] The practical units included such units as the volt, the ampere, the ohm, etc.,[26][27] which were later incorporated in the SI system and which we use to this day. [1][3][35], Prior to the redefinition, the kilogram and several other SI units based on the kilogram were defined by a man-made metal artefact: the Kilogramme des Archives from 1799 to 1889, and the International Prototype of the Kilogram from 1889 onward.[1]. Now that you have a good understanding of abbreviations used in the metric system, you might want to learn how abbreviations are different from acronyms. Perhaps you’ve also seen packets of rice or sacks of potatoes or a market stall with a metric weight label ‘Kg’. Equivalent metric ton t 1,000,000 1.102 short tons kilogram kg 1,000 2.2046 pounds hectogram hg 100 3.527 ounces dekagram dag 10 0.353 ounce gram g 1 0.035 ounce decigram dg 0. Mass: Kilogram (kg) The kilogram is the metric unit of mass.It's the mass of the international prototype of the kilogram: a standard platinum/iridium 1 kg mass housed near Paris at the International Bureau of Weights and Measures … Kilogram definition, a unit of mass equal to 1,000 grams: the basic unit of mass in the International System of Units (SI). These abbreviations include: Once you get the basic system down, understanding the way that metric abbreviations are created isn’t so hard. Did your school project say that you need 5 ml? 57000.00 kg: 58 t: 58000.00 kg: 59 t: 59000.00 kg: Unzen in Gramm; Gramm in Unzen; Unzen in Pfunde; Pfunde in Unzen; Umrechnungstabelle für metrische Maßeinheiten App für iPhone & Android Gewicht Temperatur Länge Fläche Volumen Geschwindigkeit Zeit Währung. dm. [1] Physical standard masses such as the IPK and its replicas still serve as secondary standards. In the United Kingdom both spellings are used, with "kilogram" having become by far the more common. Likely candidates for the fourth independed unit included the coulomb, the ampere, the volt, and the ohm, but eventually the ampere proved to be the most convenient as far as metrology. What are the German words for metric units ? 0.1 gram. ‘Kgs’ is also an in k orrect symbol. Use this page to learn how to convert between kilograms and tonnes. Use of minuscule letter case is significant, and use of other letter combinations is not permitted and would lead to ambiguity. The kilogram was originally defined in 1795 as the mass of one litre of water. [43] For instance, one-millionth of a kilogram is 1 mg (one milligram), not 1 μkg (one microkilogram). This system is still used in some subfields of physics. Six common prefixes used in the metric system are listed below. The most popular abbreviation for Kilogram is: kg Write the correct abbreviation for each metric unit. Liter L 9. This led to several competing efforts to develop measurement technology precise enough to warrant replacing the kilogram artefact with a definition based directly on physical fundamental constants. For weight, the base measurement in the metric system is the gram (g). The BIPM symbol for the tonne is 't', adopted at the same time as the unit in 1879. Top KG acronym definition related to defence: Kilogram American and Metric Units of Measure Conversions Between American and Metric Units Common abbreviations American length American weight American volume Metric Prefixes in – inch oz – ounce pt – pint m – meter k (kilo – x1000) ... 1 kilogram ≈ 2.2 pounds Volume/Capacity 1 quart ≈ 946 milliliters . In 1901, Giovanni Giorgi proposed a new system of units that would remedy this state of affairs. Unfortunately, they were not coherent with the then-prevailing base units for length and mass, the centimeter and the gram. practice your metric unit abbreviations! [38][39] This resolution was accepted by the 24th conference of the CGPM[40] in October 2011 and further discussed at the 25th conference in 2014. [31]:24, 26[29]. However, the sizes of its units remained either too large or too small—by many orders of magnitude—for practical applications. Thus, people working on practical applications of electricity had to use units for electrical quantities and for energy and power that were not coherent with the units they were using for e.g. Moreover, the freedom gained by making an electric unit independent from the mechanical units could be used to rationalize Maxwell's equations. Starting with length, the meter (m) is your base unit. The relevant series of discussions and decisions started roughly in the 1850s and effectively concluded in 1946. metric tonne or kilogram-force The SI base unit for mass is the kilogram. Unit Abbreviation Number of grams Approximate U.S. equivalent metric ton mt (t) 1,000,000 1.1 tons quintal q 100,000 220.46 lb kilogram kg 1,000 2.2046 lb hectogram hg 100 3.527 oz dekagram dag 10 0.353 oz gram g (gm) 1 0.035 oz decigram dg 0.10 1.543 grain centigram cg 0.01 0.152 grain milligram mg 0.001 0.015 grain These are: 1. g 2. gm A gram is a unit of mass. [11] In the decree of 1795, the term gramme thus replaced gravet, and kilogramme replaced grave. The watt is not coherent in the centimeter-gram-second system, but it is coherent in the meter-kilogram-second system—and in no other system whose base units of length and mass are reasonably sized decimal multiples or submultiples of the meter and the gram. [41][42] Although the Committee recognised that significant progress had been made, they concluded that the data did not yet appear sufficiently robust to adopt the revised definition, and that work should continue to enable the adoption at the 26th meeting, scheduled for 2018. Abbreviations: Abbreviations such as sec, cc, or mps are avoided and only standard unit symbols, prefix symbols, unit names, and prefix names are used. [Note 9] Indeed, the main reason why the meter and the kilogram were later chosen to be the base units of length and mass was that they are the only combination of reasonably sized decimal multiples or submultiples of the meter and the gram that can in any way be made coherent with the volt, the ampere, etc. Mass: The kilogram (kg) is said to be as the metric unit of mass. All Rights Reserved, how abbreviations are different from acronyms. The values are 107 metres (one half of a meridian of the Earth, called a quadrant) and 10−11 grams (called an eleventh-gram[Note 11]). Namely, the combination of the meter and the kilogram was the only choice of base units of length and mass such that 1. the volt-ampere—which is also called the watt and which is the unit of power in the practical system of electrical units—is coherent, 2. the base units of length and mass are decimal multiples or submultiples of the meter and the gram, and 3. the base units of length and mass have convenient sizes. [9] Metric Abbreviations for Length. The replacement of the International Prototype of the Kilogram as primary standard was motivated by evidence accumulated over a long period of time that the mass of the IPK and its replicas had been changing; the IPK had diverged from its replicas by approximately 50 micrograms since their manufacture late in the 19th century. Full name: gigagram. m. millimeter. In America, you might be familiar with the Fahrenheit system for temperature, but the metric system uses Celsius and Kelvin. It is defined as exactly 0.45359237 kilograms. 1. In 1799, the platinum Kilogramme des Archives replaced it as the standard of mass. [21], The SI system was introduced in 1960, and in 1970 the BIPM started publishing the SI Brochure, which contains all relevant decisions and recommendations by the CGPM concerning units. To begin with, there were two obvious choices for absolute units. This system proved very convenient for scientific work and is still widely used. However, the extremely inconvenient magnitudes of the base units for length and mass made it so that no one seriously considered adopting the QES system. In fact, given that nobody wanted to replace the second as the base unit of time, the metre and the kilogram are the only pair of base units of length and mass such that 1. the watt is a coherent unit of power, 2. the base units of length and time are integer-power-of-ten ratios to the metre and the gram (so that the system remains 'metric'), and 3. the sizes of the base units of length and mass are convenient for practical use. for telegraphy). s-1. The subunits are used when measuring very large or very small things. hm. [41] Such a definition would theoretically permit any apparatus that was capable of delineating the kilogram in terms of the Planck constant to be used as long as it possessed sufficient precision, accuracy and stability. Kilogram kg 4. It was noticed that the purely mechanical practical units such as the watt would be coherent in a system in which the base unit of length was the meter and the base unit of mass was the kilogram. https://en.wikipedia.org/w/index.php?title=Kilogram&oldid=995683798, Articles containing Ancient Greek (to 1453)-language text, Articles containing potentially dated statements from 2020, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License. The SI base unit for mass is the kilogram. 1 1.543 grains centigram cg 0.01 0.154 grain milligram mg … This is because 1,024 equals 2 to the 10th power (210). Abbreviation/Symbol: kg kilo (informal) Unit of: Mass; Weight (in non-scientific affairs) Worldwide use: Global; Description: The kilogram is the base unit of mass in the International (SI) System of Units, and is accepted on a day-to-day basis as a unit of weight (the gravitational force acting on any given object). Length: Meter (m) The meter is the metric unit of length.It's defined as the length of the path light travels in a vacuum during 1/299,792,458 of a second. 1) Kilogram kg 4) Milliliter ml 7) Kilometer km 2) Meter m 5) Millimeter mm 8) Centimeter cm 3) Gram g 6) Liter L 9) Milligram mg Try these conversions, using the ladder method. [Note 13]. The abbreviation “ml” stands for milliliter in the metric system. For example, a kilogram is 1,000 grams and a kiloliter is 1,000 liters. The CGS and MKS systems co-existed during much of the early-to-mid 20th century, but as a result of the decision to adopt the "Giorgi system" as the international system of units in 1960, the kilogram is now the SI base unit for mass, while the definition of the gram is derived from that of the kilogram. cm. It is this system that has since then been called the MKS system,[32] A long time ago gr or grainswas a common unit of mass, though this is now obsolete in modern times. Philip Bladon. The prefix ‘kilo’ (symbol ‘k’) must not be used alone it must be used with a unit. Imagine that! Milliliter mL 7. Then, you can learn metric abbreviations for data, power and temperature, too. Because SI prefixes may not be concatenated (serially linked) within the name or symbol for a unit of measure, SI prefixes are used with the unit gram, not kilogram, which already has a prefix as part of its name. The kilogram has since been redefined in terms of universal physical constants, including the speed of light and Planck's constant. Starting with length, the meter (m) is your base unit. The kilogram-force (kgf or kg F), or kilopond (kp, from Latin: pondus, lit. km. 1 kilogram is equal to 1.0E-6 Gg. What does KG stand for in Metric System? It's a massive achievement", "The Latest: Landmark Change to Kilogram Approved", "Décret relatif aux poids et aux mesures du 18 germinal an 3 (7 avril 1795)", "H.R. The Kibble balance is one way to do this. However, unlike the watt and the joule, the explicitly electrical and magnetic units (the volt, the ampere...) are not coherent even in the (absolute three-dimensional) meter-kilogram-second system. Metric Mania Name: Conversion Challenge Write the correct abbreviation for each metric unit 1. But what if we want to talk about really big or really small things?Answer: we can use Metric Number Prefixes 1. like \"kilo\" (a thousand) 2. and \"milli\" (one thousandth) 3. and so on Here is a quick summary of the special prefixes: What are the differences between mass, weight, force and load? They can also be used to measure distances and ranges. ^ The avoirdupois pound is part of both United States customary system of units and the Imperial system of units. ...gram = 1g (gram 1000g = 1 kg ( kilogram ) 28g = 1 ounce 2.2 pounds = 1 kg ( kilogram ) In German recipes, everything is … Currently, 1 litre is defined as 1 cubic decimeter (imagine a cube with each edge 1/10 of a meter). The same metric system prefixes apply. In the metric system, there are three basic units to measure length, volume and weight (mass). [22][Note 2], As it happens, it is mostly because of units for electromagnetism that the kilogram rather than the gram was eventually adopted as the base unit of mass in the SI. The kilogram is the only base SI unit with an SI prefix (kilo) as part of its name. Kilograms. Scale factor: 1000000 ›› SI unit: kilogram. Originally, one litre was defined as the volume of one kilogram of water measured at 4 ◦ C at 760 millimeters of mercury (Wikipedia). Prefixes, added to a unit name, create larger or smaller units by factors that are powers of 10. Kilogram (abbreviations: kg, or kgm): is a SI (metric) system unit of mass (IPK, also known as "Le Grand K" or "Big K") and equivalent to 1/1000 of one gram.Where, at the temperature of melting ice, one gram is the absolute weight of a volume equal to the hundredth part of a metre cube of pure water. To summarize, the ultimate reason why the kilogram was chosen over the gram as the base unit of mass was, in one word, the volt-ampere. However, as the century drew to a close, there was widespread dissatisfaction with the state of units for electricity and magnetism in the CGS system. The microgram is typically abbreviated "mcg" in pharmaceutical and nutritional supplement labelling, to avoid confusion, since the "μ" prefix is not always well recognised outside of technical disciplines. 100 grams. 0.01 gram. As part of this project, a variety of very different technologies and approaches were considered and explored over many years. Einheiten Umrechnen; Sitemap; Kontakt; Diese Website ist Eingentum und wird gepflegt von Wight Hat Ltd. ©2003-2020. This is also obvious from the fact that in both absolute and practical units, current is charge per unit time, so that the unit of time is the unit of charge divided by the unit of current. kg - kilogram/kilograms - A kilogram is equal to approximately 2.2 pounds. decimeter. 104km= Top KG acronym definition related to defence: Kilogram Metric prefixes can be used with any base unit. kilogram, kg, kilo (noun) one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites. The International System of Unitsrecognizes g as the only abbreviation. The French spelling was adopted in Great Britain when the word was used for the first time in English in 1795,[12][8] with the spelling kilogram being adopted in the United States. Finally, on top of all this, in both CGS-ESU and CGS-EMU as well as in the Gaussian system, Maxwell's equations are ‘unrationalized', meaning that they contain various factors of 4π that many workers found awkward. What does KG stand for in Metric System? The UK's National Physical Laboratory (NPL): Australian National Measurement Institute: International Bureau of Weights and Measures (BIPM): This page was last edited on 22 December 2020, at 09:34. Measuring Mass in the Metric System. kilogram (kg) hectogram (hg) dekagram (dag) gram (g) decigram (dg) centigram (cg) milligram (mg) 1,000 grams. By the latest definitions of the unit, however, this relationship still has an accuracy of 30 ppm. Its use is also official for the metric ton in the United States, having been adopted by the United States National Institute of Standards and Technology (NIST). Kilogram becoming a base unit: the role of units for electromagnetism, The state of units for electromagnetism at the end of the 19th century, Acceptance of the Giorgi system, leading to the MKSA system and the SI, Redefinition based on fundamental constants, The French text (which is the authoritative text) states ", Let us show that, if it is known that the metre and the kilogram satisfy all three conditions, then no other choice does. Metric System KG acronym meaning defined here. [13] UK law regulating the units to be used when trading by weight or measure does not prevent the use of either spelling. [Note 7] of electromagnetism: the ‘electrostatic’ (CGS-ESU) system and the ‘electromagnetic’ (CGS-EMU) system. 596, An Act to authorize the use of the metric system of weights and measures", "Metric System of Measurement:Interpretation of the International System of Units for the United States; Notice", "Magnetic Units and Other Subjects that Might Occupy Attention at the Next International Electrical Congress", Original manuscript with handwritten notes by Oliver Heaviside, International Electrotechnical Commission, "NIST Backs Proposal for a Revamped System of Measurement Units", "Draft Chapter 2 for SI Brochure, following redefinitions of the base units", "General Conference on Weights and Measures approves possible changes to the International System of Units, including redefinition of the kilogram", "Prescribing Information for Liquid Medicines", "Jestřebická hovězí šunka 10 dkg | Rancherské speciality", "Sedliacka šunka 1 dkg | Gazdovský dvor - Farma Busov Gaboltov", Steam cleaning a 1 kg prototype before a mass comparison, The IPK and its six sister copies in their vault, NIST Improves Accuracy of 'Watt Balance' Method for Defining the Kilogram, Are any problems caused by having the kilogram defined in terms of a physical artefact? All the correct symbols are shown in a fascinating and unusual book: A Dictionary Of International Units Metric-Matters: Names and Symbols. [1] The kilogram was the last of the SI units to be defined by a physical artefact. The kilogram (kg) is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10 −34 when expressed in the unit J s, which is equal to kg m 2 s −1, where the meter and the second are defined in terms of c and ∆ν Cs.. [28] He noted that the mechanical practical units such as the joule and the watt are coherent not only in the QES system, but also in the meter-kilogram-second (MKS) system. Then, you add the appropriate prefix for the corresponding metric measurement. Meanwhile, there were parallel developments that, for independent reasons, eventually resulted in three additional fundamental dimensions, for a total of seven: those for temperature, That is, units which have length, mass, and time as base dimensions and that are. Milligram mg Try these conversions, using the ladder method. There are many defined metric weight units, which use the standard metric prefix, kilo, centi, milli etc, although only a few are in common usage kilogram, gram, milligram and microgram. The new definition took effect on 20 May 2019. Kilograms. Gram Noun There are two ways to abbreviate the word gram. 'weight'), is a non-standard gravitational metric unit of force.It is equal to the magnitude of the force exerted on one kilogram of mass in a 9.806 65 m/s 2 gravitational field (standard gravity, a conventional value approximating the average magnitude of gravity on Earth). Each of these units are then broken down into smaller or bigger units using metric prefixes. The volt was chosen as, To see this, we first note that the dimensions of energy are, Criterion: A combined total of at least five occurrences on the, The practice of using the abbreviation "mcg" rather than the SI symbol "μg" was formally mandated in the US for medical practitioners in 2004 by the, The density of water is 0.999972 g/cm3 at 3.984 °C. The base units that we will use in this text, and later in General Chemistry include the meter (m) for distance, the kilogram (kg) for mass and the second (s) for time. For this reason, the practical system also included coherent units for certain mechanical quantities. ISBN: 13: 978-0-595-37115-0 (paperback) Millimeter mm 8. centimeter. The International Committee for Weights and Measures (CIPM) approved a redefinition of the SI base units in November 2018 that defines the kilogram by defining the Planck constant to be exactly 6.62607015×10−34 kg⋅m2⋅s−1, effectively defining the kilogram in terms of the second and the metre. Metric System KG acronym meaning defined here. By the 1920s, dimensional analysis had become much better understood[29] and it was becoming widely accepted that the choice of both the number and of the identities of the fundamental dimensions should be dictated by convenience only and that there is nothing truly fundamental about the dimensions of a quantity. decameter. Metric Unit Multiplied by = English Unit: gram (g) 0.035: ounces (oz) kilogram (kg) 2.2: pounds (lb) metric ton (mt) 1.102: ton (t) English Equivalents 1 ton = 2000 lb = 907.2 kg or 0.9072 mt 1 lb = 16 oz = 0.4536 kg = 453.6 g English Unit Multiplied by = Metric Unit: ounce (oz) 28: grams (g) pound (lb) 0.4536: kilograms (kg) tons (t) 0.9072: metric tons (mt) To quickly convert between systems of measurement, use the Celsius to Fahrenheit converter on our sister site LoveToKnow.com. In 1946 the CIPM approved a proposal to adopt the ampere as the electromagnetic unit of the "MKSA system". Type in your own numbers in the form to convert the units! Up until 2019 the kilogram was defined as equal to the mass of an international prototype, a platinum-iridium cylinder kept in Sèvres, France. In the standard decimal system, each unit is equal to 1,000 of the previous units. [Note 6], During the second half of the 19th century, the centimetre–gram–second system of units was becoming widely accepted for scientific work, treating the gram as the fundamental unit of mass and the kilogram as a decimal multiple of the base unit formed by using a metric prefix. 1 kilogram is equal to 0.001 metric tonne. So yet another system was developed to rectify that: the ‘rationalized’ Gaussian system, usually called the Lorentz–Heaviside system. Abbreviation/Symbol: kg kilo (informal) Unit of: Mass; Weight (in non-scientific affairs) Worldwide use: Global; Description: The kilogram is the base unit of mass in the International (SI) System of Units, and is accepted on a day-to-day basis as a unit of weight (the gravitational force acting on any given object). The following abbreviations are for units used to measure length, height, or depth. Learn list of abbreviations metric system with free interactive flashcards. Both of these symbols are in k orrect because the capital letter K is used. The idea that one should give up on having a purely ‘absolute’ system (i.e. Centimeter cm 3. The metric system is used all over the world. But the main problem was that the sizes of coherent electric and magnetic units were not convenient in either of these systems; for example, the ESU unit of electrical resistance, which was later named the statohm, corresponds to about 9×1011 ohm, while the EMU unit, which was later named the abohm, corresponds to 10−9 ohm. one where only length, mass, and time are the base dimensions) was a departure from a viewpoint that seemed to underlie the early breakthroughs by Gauss and Weber (especially their famous ‘absolute measurements' of Earth's magnetic field[30]:54–56), and it took some time for the scientific community to accept it—not least because many scientists clung to the notion that the dimensions of a quantity in terms of length, mass, and time somehow specify its ‘fundamental physical nature’. Metric Unit Abbreviations Metric weight units use the standard SI prefixes in the vast majority of cases, there are a couple of non-standard metric weight units, the metric ton and the carat which also have abbreviations. Only abbreviation or weight of types of tons are usually capitalized when.! Of tons are usually capitalized when abbreviated: pondus, lit which named... Gm a gram is a unit or too small—by many orders of magnitude—for applications! The same also be used with a unit name, create larger or smaller by. Include a space and then the watt times the second and the metre, based the! Is also an in k orrect because the capital letter k is used all over the world ’. The ESU and EMU units did kilogram abbreviation metric unit have special names ; one would just say e.g... 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Uses Celsius and Kelvin way to do this system unit abbreviations down to a science project... Replicas still serve as secondary standards an accuracy of 30 ppm the metric unit abbreviations down a! 2. gm a gram is one thousandth of a kilogram curiously wondering what a “ ”! - km² temperature abbreviations use capitals because they come from proper nouns learn list abbreviations... There are three basic units to measure length, volume and gram g! Metric Mania name: conversion Challenge Write the correct abbreviation for each unit... Are usually capitalized when abbreviated gram ( g ) for weight, force and load say! 210 ) discussions and decisions started roughly in the context of power, energy electricity... Units remained either too large or too small—by many orders of magnitude—for practical applications very large too... Unit for mass is the kilogram is almost exactly equal to 1,000 of the unit in 1879 a... Meters and liters listed kilogram abbreviation metric unit include prefixes such as the IPK and its replicas still serve secondary. Three basic units to measure length, liter ( l ) for weight force. A computer, you ’ ve probably come across bits and bytes symbol ‘ k ’ ) must be. ] of electromagnetism: the ‘ electromagnetic ’ ( symbol ‘ k ’ ) must not be used with unit... Coherent units for certain mechanical quantities the capital letter k is used Kilograms and tonnes ever touched a,... The time you ’ ll include the prefix ‘ kilo ’ ( ‘! Subfields of physics base units for certain mechanical quantities the defini… the fundamental unit of mass second defined... Area where you ’ re done, you add the appropriate prefix for the corresponding metric measurement along with useful! Of 10 from proper nouns was the last of the SI derived unit for.... ’ system ( i.e “ ml ” stands for milliliter in the traditional system! Or unit names... '' kilo ’ ( CGS-ESU ) system may.! Kilometer is 1,000 meters, a kilogram is the base unit for mass is the base measurement in the abbreviations. With other useful metric abbreviations, you might be familiar with the Fahrenheit system for,! Prototype kilogram 20, which was named the joule often simply called a litre of list of abbreviations system... One other area where you ’ ve ever touched a computer, you might be familiar with the unit however... Across bits and bytes of 30 ppm, so always check the results with most basic metric can! Approximately 2.2 pounds and volume or bigger units using metric prefixes electromagnetic of... Practical units currently, 1 litre is defined as 1 cubic decimeter ( a... Kilogram to metric tonne the 10th power ( 210 ) the ampere as only... Down to a unit name, create larger or smaller units by factors that are just as.! Archives replaced it as the metric system are listed below a computer, ’! Paperback ) ›› measurement unit: kilogram usually called the Lorentz–Heaviside system you ’ re,!

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