Mass & Weight Conversion Calculator

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Common Units of Weight or Mass

Common Units of Weight of Mass American and British Units
1. Avoirdupois
1 grain = 1/7,000 pound = 1/437.5 ounce
1 dram (dr) = 1/256 pound= 1/16 ounce
1 ounce (oz) = 1/16 pound
1 pound (lb; basic unit of weight or mass)
1 short hundredweight = 100 pounds
1 long hundredweight = 112 pounds
1 short ton = 2,000 pounds
1 long ton = 2,240 pounds

Common Units of Weight or Mass American and British Units (Metric Units)
1 milligram (mg) = 1/1,000,000 kilogram = 1/1,000 gram
1 centigram (cg) = 1/100,000 kilogram = 1/100 gram
1 decigram (dg) = 1/10,000 kilogram = 1/10 gram
1 gram (g) = 1/1,000 kilogram
1 dekagram (dkg) = 1/100 kilogram = 10 grams
1 hectogram (hg) = 1/10 kilogram = 100 grams
1 kilogram (kg; basic unit of wieght or mass
1 metric ton (t) = 1,000 kilograms

Conversion Factors for Units of Weight or Mass
1 grain = 64 milligrams
1 ounce (avoirdupois) = 28.35 grams
1 pound (avoirdupois) = 0.45 kilogram = 1.2 troy or apothecaries' pounds
1 troy or apothecaries' pound = 0.37 kilogram
1 short ton = 0.9 metric ton
1 milligram = 0.015 grain
1 gram = 0.035 ounce (avoirdupois)
1 kilogram= 2.205 pounds (avoirdupois)
1 metric ton = 1.1 short ton

Standard
1 lb = 0.45359237 kg
1 kg = 2.204622621849 lb = 35.27396194958 oz