Mass unit conversion table
This table contains conversions between almost all mass units. Some units of mass are common and some are relatively rare. This is a good query tool. Weight Converter
| Name of unit | Symbol | Definition | Relation to SI units |
|---|---|---|---|
| atomic mass unit, unified | u; AMU | Same as dalton(see below) | ≈ 1.660 539040(20) ×10 −27 kg |
| atomic unit of mass, electronrest mass | me | ≈ 9.109 38291(40) ×10 −31 kg | |
| bag ( coffee) | ≡ 60 kg | = 60 kg | |
| bag ( Portland cement) | ≡ 94 lb av | = 42.637 68278 kg | |
| barge | ≡ 22 1⁄ 2short ton | = 20 411.656 65 kg | |
| carat | kt | ≡ 3 1⁄ 6gr | = 205.196 5483 mg |
| carat(metric) | ct | ≡ 200 mg | = 200 mg |
| clove | ≡ 8 lb av | = 3.628 73896 kg | |
| crith | ≡ mass of 1 L of hydrogen gas at STP | ≈ 89.9349 mg | |
| dalton | Da | 1/12 the mass of an
unboundneutral atom of
carbon-12in its nuclear and electronic ground stateand at rest | ≈ 1.660 538921(73) ×10 −27 kg |
| dram(apothecary; troy) | dr t | ≡ 60 gr | = 3.887 9346 g |
| dram(avoirdupois) | dr av | ≡ 27 11⁄ 32gr | = 1.771 8451953125 g |
| electronvolt | eV | ≡ 1 eV (energy unit) / c2 | = 1.782 66184(45) ×10 −36 kg |
| gamma | γ | ≡ 1 μg | = 1 μg |
| grain | gr | ≡ 1⁄ 7000 lb av | ≡ 64.798 91 mg |
| grave | gv. | grave was the original name of the kilogram | ≡ 1 kg |
| hundredweight(long) | long cwt or cwt | ≡ 112 lb av | = 50.802 34544 kg |
| hundredweight(short); cental | sh cwt | ≡ 100 lb av | = 45.359 237 kg |
| kilogram
(kilogramme) | kg | ≡ mass of the prototype near Paris
≈ mass of 1 litre of water | ≡ 1 kg ( SI base unit) |
| kip | kip | ≡ 1000 lbav | = 453.592 37 kg |
| mark | ≡ 8 oz t | = 248.827 8144 g | |
| mite | ≡ 1⁄ 20gr | = 3.239 9455 mg | |
| mite (metric) | ≡ 1⁄ 20g | = 50 mg | |
| ounce (apothecary; troy) | oz t | ≡ 1⁄ 12 lb t | = 31.103 4768 g |
| ounce( avoirdupois) | oz av | ≡ 1⁄ 16 lb | = 28.349 523125 g |
| ounce (US food nutrition labelling) | oz | ≡ 28 g | = 28 g |
| pennyweight | dwt; pwt | ≡ 1⁄ 20oz t | = 1.555 17384 g |
| point | ≡ 1⁄ 100ct | = 2 mg | |
| pound (avoirdupois) | lb av | ≡ 0.453 59237 kg= 7000grains | ≡ 0.453 59237 kg |
| pound (metric) | ≡ 500 g | = 500 g | |
| pound (troy) | lb t | ≡ 5760grains | = 0.373 2417216 kg |
| quarter (imperial) | ≡ 1⁄ 4long cwt = 2 st = 28 lb av | = 12.700 58636 kg | |
| quarter (informal) | ≡ 1⁄ 4short ton | = 226.796 185 kg | |
| quarter, long (informal) | ≡ 1⁄ 4long ton | = 254.011 7272 kg | |
| quintal(metric) | q | ≡ 100 kg | = 100 kg |
| scruple( apothecary) | s ap | ≡ 20 gr | = 1.295 9782 g |
| sheet | ≡ 1⁄ 700 lb av | = 647.9891 mg | |
| slug; geepound; hyl | slug | ≡ 1 ɡ0 × 1 lb av × 1 s 2/ft | ≈ 14.593 903 kg |
| stone | st | ≡ 14 lb av | = 6.350 29318 kg |
| ton, assay(long) | AT | ≡ 1 mg × 1 long ton ÷ 1 oz t | = 32. 6 g |
| ton, assay(short) | AT | ≡ 1 mg × 1 short ton ÷ 1 oz t | = 29.1 6 g |
| ton, long | long tn or ton | ≡ 2240 lb | = 1 016.046 9088 kg |
| ton, short | sh tn | ≡ 2000 lb | = 907.184 74 kg |
| tonne( mtsunit) | t | ≡ 1000 kg | = 1000 kg |
| wey | ≡ 252 lb = 18 st | = 114.305 27724 kg(variants exist) | |
| Zentner | Ztr. | Definitions vary. |