Weight and Mass Converter
Complete List of Weight and Mass Units for Conversion
This page provides a comprehensive guide to weight and mass units along with their conversion factors to the base unit, the kilogram. Whether you need to convert everyday units like grams, pounds, and ounces or more specialized measurements like atomic mass units and astronomical masses, this guide covers it all.
Metric Units
Kilogram [kg] – the base unit of mass.
1 Gram [g] = 0.001 kilogram
(Convert gram → kilogram or kilogram → gram)1 Milligram [mg] = 1.0E-6 kilogram
(Convert milligram → kilogram or kilogram → milligram)1 Ton (metric) [t] = 1000 kilogram
(Convert metric ton → kilogram or kilogram → metric ton)
Common Non-Metric Units
1 Pound [lbs] = 0.45359237 kilogram
(Convert pound → kilogram or kilogram → pound)1 Ounce [oz] = 0.0283495231 kilogram
(Convert ounce → kilogram or kilogram → ounce)1 Carat [car, ct] = 0.0002 kilogram
(Convert carat → kilogram or kilogram → carat)1 Ton (short) [ton (US)] = 907.18474 kilogram
(Convert short ton → kilogram or kilogram → short ton)1 Ton (long) [ton (UK)] = 1016.0469088 kilogram
(Convert long ton → kilogram or kilogram → long ton)
Specialized Units
1 Atomic mass unit [u] = 1.6605402E-27 kilogram
(Atomic mass unit to kilogram and vice versa)1 Exagram [Eg] = 1.0E+15 kilogram
(Convert exagram → kilogram or kilogram → exagram)1 Petagram [Pg] = 1.0E+12 kilogram
(Convert petagram → kilogram or kilogram → petagram)1 Teragram [Tg] = 1.0E+9 kilogram
(Convert teragram → kilogram or kilogram → teragram)1 Gigagram [Gg] = 1.0E+6 kilogram
(Convert gigagram → kilogram or kilogram → gigagram)1 Megagram [Mg] = 1000 kilogram
(Convert megagram → kilogram or kilogram → megagram)
Subdivisions of the Kilogram
1 Hectogram [hg] = 0.1 kilogram
1 Dekagram [dag] = 0.01 kilogram
1 Decigram [dg] = 0.0001 kilogram
1 Centigram [cg] = 1.0E-5 kilogram
1 Microgram [µg] = 1.0E-9 kilogram
1 Nanogram [ng] = 1.0E-12 kilogram
1 Picogram [pg] = 1.0E-15 kilogram
1 Femtogram [fg] = 1.0E-18 kilogram
1 Attogram [ag] = 1.0E-21 kilogram
Additional and Derived Units
1 Dalton = 1.6605300000013E-27 kilogram
1 Kilogram-force square second/meter = 9.80665 kilogram
1 Kilopound [kip] = 453.59237 kilogram
(Also referred to as 1 Kip)1 Slug = 14.5939029372 kilogram
1 Pound-force square second/foot = 14.5939029372 kilogram
1 Pound (troy or apothecary) = 0.3732417216 kilogram
1 Poundal [pdl] = 0.0140867196 kilogram
1 Ton (assay) (US) [AT (US)] = 0.02916667 kilogram
1 Ton (assay) (UK) [AT (UK)] = 0.0326666667 kilogram
1 Kiloton (metric) [kt] = 1,000,000 kilogram
1 Quintal (metric) [cwt] = 100 kilogram
1 Hundredweight (US) = 45.359237 kilogram
1 Hundredweight (UK) = 50.80234544 kilogram
1 Quarter (US) [qr (US)] = 11.33980925 kilogram
1 Quarter (UK) [qr (UK)] = 12.70058636 kilogram
1 Stone (US) = 5.669904625 kilogram
1 Stone (UK) = 6.35029318 kilogram
1 Tonne [t] = 1000 kilogram
1 Pennyweight [pwt] = 0.0015551738 kilogram
1 Scruple (apothecary) [s.ap] = 0.0012959782 kilogram
1 Grain [gr] = 6.47989E-5 kilogram
1 Gamma = 1.0E-9 kilogram
Historical and Biblical Units
1 Talent (Biblical Hebrew) = 34.2 kilogram
1 Mina (Biblical Hebrew) = 0.57 kilogram
1 Shekel (Biblical Hebrew) = 0.0114 kilogram
1 Bekan (Biblical Hebrew) = 0.0057 kilogram
1 Gerah (Biblical Hebrew) = 0.00057 kilogram
1 Talent (Biblical Greek) = 20.4 kilogram
1 Mina (Biblical Greek) = 0.34 kilogram
1 Tetradrachma (Biblical Greek) = 0.0136 kilogram
1 Didrachma (Biblical Greek) = 0.0068 kilogram
1 Drachma (Biblical Greek) = 0.0034 kilogram
1 Denarius (Biblical Roman) = 0.00385 kilogram
1 Assarion (Biblical Roman) = 0.000240625 kilogram
1 Quadrans (Biblical Roman) = 6.01563E-5 kilogram
1 Lepton (Biblical Roman) = 3.00781E-5 kilogram
Fundamental Physical Masses
1 Planck mass = 2.17671E-8 kilogram
1 Electron mass (rest) = 9.1093897E-31 kilogram
1 Muon mass = 1.8835327E-28 kilogram
1 Proton mass = 1.6726231E-27 kilogram
1 Neutron mass = 1.6749286E-27 kilogram
1 Deuteron mass = 3.343586E-27 kilogram
Astronomical Masses
1 Earth’s mass = 5.9760000000002E+24 kilogram
1 Sun’s mass = 2.0E+30 kilogram