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Weight & Mass Converter
Convert between metric mass units, imperial weights, precious metal standards, atomic units, and Asian traditional measures.
Popular Weight & Mass Conversions
Complete Unit Reference & Conversion Ratios
Weight & Mass Reference & Conversion Factors
Base reference unit: Kilograms (kg)
| Unit Name | Symbol | Classification | Value in Kilograms | Description |
|---|---|---|---|---|
| Megatonnes (Megatons) | Mt | ๐น Metric & Bulk Mass | 1 Mt = 1,000,000,000 kg | 1 megatonne = 1,000,000,000 kg = 1,000,000 tonnes |
| Kilotonnes (Kilotons) | kt | ๐น Metric & Bulk Mass | 1 kt = 1,000,000 kg | 1 kilotonne = 1,000,000 kg = 1,000 tonnes |
| Metric Tonnes | t | ๐น Metric & Bulk Mass | 1 t = 1,000 kg | 1 tonne = 1,000 kg = 10โถ g |
| Kilograms | kg | ๐น Metric & Bulk Mass | 1 kg = 1 kg | SI base unit of mass |
| Hectograms | hg | ๐น Metric & Bulk Mass | 1 hg = 0.1 kg | 1 hectogram = 100 grams = 0.1 kg |
| Dekagrams (Decagrams) | dag | ๐น Metric & Bulk Mass | 1 dag = 0.01 kg | 1 dekagram = 10 grams = 0.01 kg |
| Grams | g | ๐น Metric & Bulk Mass | 1 g = 0.001 kg | 1 gram = 0.001 kg |
| Decigrams | dg | ๐น Metric & Bulk Mass | 1 dg = 0.0001 kg | 1 decigram = 0.1 gram = 10โปโด kg |
| Centigrams | cg | ๐น Metric & Bulk Mass | 1 cg = 0.00001 kg | 1 centigram = 0.01 gram = 10โปโต kg |
| Milligrams | mg | ๐น Metric & Bulk Mass | 1 mg = 0.000001 kg | 1 milligram = 0.001 gram = 10โปโถ kg |
| Micrograms | ยตg | ๐น Metric & Bulk Mass | 1 ยตg = 1.0000e-9 kg | 1 microgram = 10โปโถ gram = 10โปโน kg |
| Long Tons (UK) | ton (UK) | ๐๏ธ Imperial & US Customary | 1 ton (UK) = 1,016.0469088 kg | 1 UK long ton = 2,240 lbs = 1,016.05 kg |
| Short Tons (US) | ton (US) | ๐๏ธ Imperial & US Customary | 1 ton (US) = 907.18474 kg | 1 US short ton = 2,000 lbs = 907.18 kg |
| Hundredweight (UK Long) | cwt (UK) | ๐๏ธ Imperial & US Customary | 1 cwt (UK) = 50.80234544 kg | 1 UK long cwt = 112 lbs = 8 stones = 50.80 kg |
| Hundredweight (US Short) | cwt (US) | ๐๏ธ Imperial & US Customary | 1 cwt (US) = 45.359237 kg | 1 US short cwt = 100 lbs = 45.36 kg |
| Quarters (UK) | qtr (UK) | ๐๏ธ Imperial & US Customary | 1 qtr (UK) = 12.70058636 kg | 1 UK quarter = 28 lbs = 2 stones = 12.70 kg |
| Quarters (US) | qtr (US) | ๐๏ธ Imperial & US Customary | 1 qtr (US) = 11.33980925 kg | 1 US quarter = 25 lbs = 11.34 kg |
| Stones | st | ๐๏ธ Imperial & US Customary | 1 st = 6.35029318 kg | 1 stone = 14 pounds = 6.3503 kg |
| Pounds (Avoirdupois) | lbs | ๐๏ธ Imperial & US Customary | 1 lbs = 0.45359237 kg | 1 avoirdupois pound = 16 ounces = 0.4536 kg |
| Ounces (Avoirdupois) | oz | ๐๏ธ Imperial & US Customary | 1 oz = 0.02834952 kg | 1 avoirdupois ounce = 28.3495 g |
| Drams (Avoirdupois) | dr | ๐๏ธ Imperial & US Customary | 1 dr = 0.00177185 kg | 1 avoirdupois dram = 1/16 ounce โ 1.7718 g |
| Grains (Troy / Avdp) | gr | ๐๏ธ Imperial & US Customary | 1 gr = 0.0000648 kg | 1 grain = exactly 64.79891 mg |
| Troy Pounds | lb t | ๐ Troy & Precious Metals | 1 lb t = 0.37324172 kg | 1 troy pound = 12 troy ounces = 5,760 grains = 373.24 g |
| Troy Ounces | oz t | ๐ Troy & Precious Metals | 1 oz t = 0.03110348 kg | 1 troy ounce = 480 grains = 31.1035 g |
| Pennyweights | dwt | ๐ Troy & Precious Metals | 1 dwt = 0.00155517 kg | 1 pennyweight = 24 grains = 1/20 oz t = 1.5552 g |
| Scruples (Apothecaries) | s.ap | ๐ Troy & Precious Metals | 1 s.ap = 0.00129598 kg | 1 scruple = 20 grains = 1/3 dram โ 1.2960 g |
| Carats (Metric) | ct | ๐ Troy & Precious Metals | 1 ct = 0.0002 kg | 1 metric carat = 200 mg = 0.2 g (diamonds & gems) |
| Megadaltons | MDa | โ๏ธ Atomic & Molecular Physics | 1 MDa = 1.6605e-21 kg | 1 megadalton = 1,000,000 Da = 1.6605 ร 10โปยฒยน kg |
| Kilodaltons | kDa | โ๏ธ Atomic & Molecular Physics | 1 kDa = 1.6605e-24 kg | 1 kilodalton = 1,000 Da (used for proteins/macromolecules) |
| Daltons (Da) | Da | โ๏ธ Atomic & Molecular Physics | 1 Da = 1.6605e-27 kg | 1 Dalton = 1 unified atomic mass unit (u) |
| Atomic Mass Units (u / amu) | amu | โ๏ธ Atomic & Molecular Physics | 1 amu = 1.6605e-27 kg | 1 amu = 1/12 the mass of carbon-12 โ 1.66054 ร 10โปยฒโท kg |
| Piculs (East / SE Asia) | picul | ๐ Traditional & Regional (Asian Units) | 1 picul = 60.478982 kg | 1 traditional picul (tan) = 100 catties = 133.33 lbs โ 60.48 kg |
| Maunds (South Asia) | maund | ๐ Traditional & Regional (Asian Units) | 1 maund = 37.32417216 kg | 1 standard British India maund = 40 seers โ 37.32 kg |
| Seers (South Asia) | seer | ๐ Traditional & Regional (Asian Units) | 1 seer = 0.9331043 kg | 1 seer = 80 tolas โ 933.1 grams |
| Taels (East Asia) | tael | ๐ Traditional & Regional (Asian Units) | 1 tael = 0.03779936 kg | 1 standard Chinese/HK tael (leang) = 10 mace โ 37.80 g |
| Tolas (South Asia) | tola | ๐ Traditional & Regional (Asian Units) | 1 tola = 0.0116638 kg | 1 standard South Asian tola = 180 grains โ 11.664 g (gold/silver) |
| Mashas (South Asia) | masha | ๐ Traditional & Regional (Asian Units) | 1 masha = 0.00097198 kg | 1 masha = 1/12 tola = 8 ratti โ 0.9720 g |
| Rattis (South Asia) | ratti | ๐ Traditional & Regional (Asian Units) | 1 ratti = 0.0001215 kg | 1 ratti = 1/8 masha = 1/96 tola โ 121.5 mg |