Choosing a weight unit
Use grams for lighter items, kilograms for larger masses, and pounds or ounces when customary units are more familiar.
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Unit conversion category
Weight Converter
Convert everyday weight and mass units from small measurements to large quantities.
Convert everyday weight and mass units from small measurements to large quantities.
Featured Units
Milligram
Gram
Kilogram
Ounce
Pound
Stone
Metric Ton
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Educational Guide
Comparing mass measurements
A consistent unit lets you compare quantities accurately across recipes, shipping, fitness, and science.
Frequently Asked Questions
What is the metric base unit for mass?
The kilogram is the SI base unit for mass.
Are weight and mass the same?
They are distinct concepts, although everyday tools often use the terms interchangeably.
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