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
Fun Fact
One knot is one nautical mile per hour. At take-off, a 747 is hurtling down the runway at around 170 knots - also known as 'too late to change your mind' speed.
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.