Convert Between Units of Mass
Mass unit conversions are used across engineering, manufacturing, and laboratory work.
About Mass Conversions
Helpful context and notes for converting Mass units.
Mass unit conversions are used across engineering, manufacturing, and laboratory work.
Mass values are often combined with force, density, or energy calculations and may be reported in different unit systems.
Mass and weight are sometimes confused in documentation. Confirm that you are converting the intended quantity.
Frequently Asked Questions
Mass conversions are exact based on standard definitions.
Yes for reference and checking. Confirm values in final analyses.
Mass describes amount of matter, while weight describes gravitational force.
Mass and force are related but represent different physical quantities.
No. Mass is independent of gravity.
Fun Fact
One mechanical horsepower is about the power of a very determined horse - or about what it takes to justify buying a louder car than you really need.
Supported Units
Common and engineering-specific units supported for this conversion.
- assay_ton (Assay Tons)
- carat (Carats)
- ckg (centikilograms)
- Da (Daltons)
- dakg (decakilograms)
- dkg (decikilograms)
- dr (drams)
- Gkg (gigakilograms)
- grain (Grains)
- g (grams)
- hkg (hectokilograms)
- kg (kilograms)
- kkg (kilokilograms)
- uk_cwt (Long Hundredweights)
- L/T (long tons)
- Mkg (megakilograms)
- metric_ton (Metric Tons)
- μg (micrograms)
- μkg (microkilograms)
- mg (milligrams)
- mkg (millikilograms)
- nkg (nanokilograms)
- oz (ounces)
- pkg (picokilograms)
- lbm (Pounds)
- cwt (Short Hundredweights)
- dwt (Short Pennyweights)
- S/T (short tons)
- slug (slugs)
- st (stones)
- Tkg (terakilograms)
- ton (Tons)
- t (tonnes)
- uk_ton (UK Tons)
Unit Categories
Explore the types of units you can convert on this site.