Mass Conversions

To convert mass from one unit to another, enter a value in the input field and choose your converter below.

Units of Mass

UnitSymbolRelative to SI unit
Tonnest1,000
Kilograms (SI unit)kg1
Gramsg0.001
Milligramsmg1 × 10-6
Microgramsµg1 × 10-9
Imperial tonston,long tn1,016.046909
US tonssh tn907.18474
Stonesst6.350293
Poundslb av0.453592
Ouncesoz av0.02835

Convert from Tonnes

Convert from Kilograms

Convert from Grams

Convert from Milligrams

Convert from Micrograms

Convert from Imperial tons

Convert from US tons

Convert from Stones

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Convert from Ounces