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

Inputs data - value and unit, which we're going to convert

1 (kilogram) is equal to:

metric

UnitSymbolValue
kiloton (gigagram)kton, Gg0.000001
ton (megagram)ton, Mg0.001
quintalq0.01
kilonewtonkN0.009806652
kilogramkg1
hectogramhg10
decagramdag100
gramg1000
caratct5000
centigramcg100000
milligrammg1000000
microgramµg1000000000
nanogramng1×1012
atomic mass unitu6.022141983×1026

Avoirdupois, U.S.

UnitSymbolValue
long tonton0.000984207
short tonsh tn0.001102311
long hundredweightcwt0.019684131
short hundredweightsh cwt0.022046226
stonest0.157473044
poundlb av2.204622622
ounceoz av35.27396195
dramdr av564.383391293
graingr15432.3583529

troy & apothecaries

UnitSymbolValue
poundlb t2.679228881
ounceoz t32.150746569
dramdr t257.205972549
pennyweightdwt, pwt643.014931373
scruples ap771.617917647
caratkt4873.37632199
graingr15432.3583529
mite308647.167059
doite7406798.40398

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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"Calculla v1" version of this calculatorIn December 2016 the Calculla website has been republished using new technologies and all calculators have been rewritten. Old version of the Calculla is still available through this link: v1.calculla.com. We left the version 1 of Calculla untouched for archival purposes.
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