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Convert weight measurements between U.S./Imperial and SI (Metric) units

Type your value in a box, click the button next to that box, and all unit conversions in the same category will be calculated.

SI (Metric)
Kilogram (kg)
Gram (g)
Milligram (mg)
Troy weight
Pound (lb t)
Ounce (oz t)
PennyWeight (dwt)
Same as Avoirdupois grain
Avoirdupois weight
British ("long") ton
US ("short") ton
British ("long") hundredweight (cwt)
US ("short") hundredweight (cwt)
Pound (lb)
Ounce (oz)
Dram (dr)