Mass units converter
Mass (weight) units converter - converts units between metric (tons, kilograms, etc.), Avoirdupois/US (pounds, ounces) and troy systems

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Value
Unit
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1 (kilogram) is equal to:

metric

UnitSymbolSymbol
(plain text)
ValueNotes
kiloton (gigagram)Show sourcektonktonkton, Gg0.000001Equivalent to one thousand tons or one million kilograms. See ton unit for more information.1 kton=1000 ton=106 kg1\ kton = 1000\ ton = 10^6\ kg
ton (megagram)Show sourcetontonton, Mg0.001Equivalent to one thousand kilograms or one million grams. See the kilo unit to learn more.1 ton=1000 kg=106 g1\ ton = 1000\ kg = 10^6\ g
quintalShow sourceqqq0.01Unit of mass used in agriculture. One quintal corresponds to one hundred kilograms (100 kg). See the kilogram unit to learn more.1 q=100 kg1\ q = 100\ kg
kilonewtonShow sourcekNkNkN0.009806652Colloquially equivalent to the mass of the body, which when placed in the gravitational field of the Earth will act on the force of one kilonewton. Since in the formal language newton is a forc eunit, not mass, the use of this phrase is not currently recommended.1 kN (mass)=1000 Ngravitational acceleration1000 kgm/s29.81 m/s2101.9716005 kg1\ kN\ (mass) = \frac{1000\ N}{\text{gravitational acceleration}} \approx \frac{1000\ kg \cdot \cancel{m/s^2}}{9.81\ \cancel{m/s^2}} \approx 101.9716005\ kg
kilogramShow sourcekgkgkg1The basic unit of mass in SI system. From May 20, 2019, the following kilogram definition applies: „Kilogram, kg, unit of mass in SI. It is defined by adopting the set numerical value of the Planck constant h, which is 6.62607015⋅10 −34 , expressed in the unit J · s, which is equal to kg⋅m2 ⋅s-1, with the meter and second being defined by c and ∆νCs.”
hectogramShow sourcehghghg10One hundred grams or one tenth of a kilogram. See the kilo unit to learn more.1 hg=100 g=110 kg1\ hg = 100\ g = \frac{1}{10}\ kg
decagramShow sourcedagdagdag100Ten grams or one hundredth of a kilogram.1 dag=10 g=1100 kg1\ dag = 10\ g = \frac{1}{100}\ kg
gramShow sourceggg1000One thousandth of a kilo. Before the spread of SI units, it was the basic mass unit in the centimeter-gram-second system (CGS). See the kilogram unit to learn more.1 g=11000 kg1\ g = \frac{1}{1000}\ kg
caratShow sourcectctct5000A unit of mass used in jewelry to determine the weight of stones and pearls, as well as the purity of gold. One carat corresponds to two tenths of a gram (0.2 g). See the gram unit to learn more.1 ct=210 g=0.2 g1\ ct = \frac{2}{10}\ g = 0.2\ g
centigramShow sourcecgcgcg100000Equivalent to one hundredth of a gram. See the gram unit to learn more.1 cg=1100 g=0.01 g1\ cg = \frac{1}{100}\ g = 0.01\ g
milligramShow sourcemgmgmg1000000Equivalent to one millionth of a gram. Unit often used in chemistry for weighing reagents on a laboratory scale. See the gram unit to learn more.1 mg=11000 g=0.001 g1\ mg = \frac{1}{1000}\ g = 0.001\ g
microgramShow sourceμg\mu gµg1000000000Equivalent to one millionth of a gram. See the gram unit to learn more.1 μg=106 g1\ \mu g = 10^{-6}\ g
nanogramShow sourcengngng1×1012Equivalent to one billionth of a gram. See the gram unit to learn more.1 ng=109 g1\ ng = 10^{-9}\ g
atomic mass unitShow sourceuuu6.022141287×1026A unit of mass used in chemistry and atomic physics. Another name for this unit is dalton. One dalton corresponds to one twelfth of the mass of a carbon atom 12C, which is approximately the mass of one hydrogen atom.1 u=112m12CmH1\ u = \frac{1}{12} m_{^{12}C} \approx m_{H}

Avoirdupois, U.S.

UnitSymbolSymbol
(plain text)
ValueNotes
long tonShow sourcetontonton0.000984207Equivalent to two thousand two hundred and forty US pounds (2240 lbs). See the pound unit for more information.1 ton=2240 lbs1\ ton = 2240\ lbs
short tonShow sourcesh tn\text{sh tn}sh tn0.001102311Equivalent to two thousand US pounds (2000 lbs). See the pound unit for more information.1 ton=2000 lbs1\ ton = 2000\ lbs
long hundredweightShow sourcecwtcwtcwt0.019684131Equivalent to one hundred and twelve US pounds (112 lbs). See the pound unit for more information.1 cwt=112 lbs1\ cwt = 112\ lbs
short hundredweightShow sourcesh cwt\text{sh cwt}sh cwt0.022046226Equivalent to one hundred US pounds (100 lbs) . See the pound unit for more information.1 sh cwt=100 lbs1\ sh\ cwt = 100\ lbs
stoneShow sourceststst0.157473044Unit of mass used in Great Britain. One stone corresponds to fourteen pounds (14 lbs). See the pound unit for more information.1 st=14 lbs1\ st = 14\ lbs
poundShow sourcelb av\text{lb av}lb av2.204622622Unit of mass used in Anglo-Saxon countries. One international pound corresponds to approximately four hundred and fifty grams.1 lb=0.45359237 kg1\ lb = 0.45359237\ kg
ounceShow sourceoz av\text{oz av}oz av35.27396195Equivalent to one sixteenth pound. See the pound unit for more information.1 oz av=116 lb1\ oz\ av = \frac{1}{16}\ lb
dramShow sourcedr av\text{dr av}dr av564.383391293Equivalent to one sixteenth ounce or one two hundred and fifty sixths of a pound. See ounce or pound units for more information.1 dr=116 oz=1256 lb1\ dr = \frac{1}{16}\ oz = \frac{1}{256}\ lb
grainShow sourcegrgrgr15432.3583529Equivalent to 1/7000 pounds. See the pound unit for more information.1 gr=17000 lb1\ gr = \frac{1}{7000}\ lb

troy & apothecaries

UnitSymbolSymbol
(plain text)
ValueNotes
poundShow sourcelb t\text{lb t}lb t2.679228881Historic mass unit used until 1879 in Great Britain to determine the mass of precious metals. One troy pound corresponded to approximately one third of a kilogram.1 lb t=0.373241722 kg1\ lb\ t = 0.373241722\ kg
ounceShow sourceoz t\text{oz t}oz t32.150746569Equivalent to one-twelfth of troy pound. See the troy pound unit for more information.1 oz t=112 lb t1\ oz\ t = \frac{1}{12}\ lb\ t
dramShow sourcedr t\text{dr t}dr t257.205972549Equivalent to one-eighth of troy ounce (1/8 oz t) or one-ninety-sixth of troy pound (1/96 lb t). See troy ounce or pund to learn more.1 oz t=1 dr t=18 oz t=196 lb t1\ oz\ t = 1\ dr\ t = \frac{1}{8}\ oz\ t = \frac{1}{96}\ lb\ t
pennyweightShow sourcedwt\text{dwt}dwt, pwt643.014931373Equivalent to one two hundred forty troy pounds (1/240 lb t) or one twentieth troy ounce (1/20 oz t). See troy pound or ounce units to learn more.1 dwt=120 oz t=1240 lb t1\ dwt = \frac{1}{20}\ oz\ t = \frac{1}{240}\ lb\ t
scrupleShow sources ap\text{s ap}s ap771.617917647Equivalent to one-third of troy dram (1/3 dr t) or one two hundred eighty-eight of troy pound (1/288 lb t). See troy dram or pound units to learn more.1 s ap=13 dr t=1288 dr t1\ s\ ap = \frac{1}{3}\ dr\ t = \frac{1}{288}\ dr\ t
grainShow sourcegr\text{gr}gr15432.3583529Equivalent to twenty scruples (20 s ap) or 1/5760 of troy pound. See the scruple of troy pound units to learn more.1 gr t=20 ap s=15760 lb t1\ gr\ t = 20\ ap\ s = \frac{1}{5760}\ lb\ t
caratShow sourcekt\text{kt}kt48733.7632199Equivalent to three and one sixth of troy grains (3 1/6 gr t). See the troy grain unit to learn more.1 kt t=316 gr t=1934560 lb t1\ kt\ t = 3 \frac{1}{6}\ gr\ t = \frac{19}{34560}\ lb\ t
miteShow source--308647.167059Equivalent to four hundred scruples (400 s ap) or 1/115200 of troy pound. See the scruple or troy pound units to learn more.1 mite (troy)=400 ap s=1115200 lb t1\ \text{mite (troy)} = 400\ ap\ s = \frac{1}{115200}\ lb\ t
doiteShow source--7407532.00941Equivalent to twenty-four mites (24 mite) or 1/2764800 of troy pound. See unit or troy pound units to learn more.1 doite (troy)=24 mite (troy)=12764800 lb t1\ \text{doite (troy)} = 24\ \text{mite (troy)} = \frac{1}{2764800}\ lb\ t

Some facts

  • The mass is a measure of the amount of substance.
  • The mass conception is closely related to the concept of inertia. This is a feature of material objects, which basically means that the body once set in motion retains its speed as long as it will not work on any external forces.
  • The mass of body also determines the gravitation force. Any two bodies interact with force directly proportional to the product of their masses.
  • There are objects without mass for example photons.
  • In the first half of the twentieth century, Einstein created theory saying there is equivalence of mass and energy. This theory is related to one of the most famous physical formulas: E = mc2. The theory has been confirmed experimentally and succesfully applied to create nucler power plant and nuclear weapon. In both cases the energy is "created", while loss of mass is noticed. In other words, the mass is converted into energy.

How to convert

  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    Examples:
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit". Some unit calculators have huge number of different units to select from - it's just how complicated our world is...
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you're looking for.

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