Everyday Calculators
Mass converter
Convert between milligrams, grams, kilograms, metric tonnes, ounces and pounds.
JavaScript is required to run the interactive tool. Open the tool separately if it does not load in the frame.
How to use it
Enter a value and choose source and target mass units.
Example
1 pound equals 0.45359237 kilograms.
Frequently asked question
Does this convert weight force?
No. It converts mass, not force. Ounces and pounds use the international avoirdupois system, not troy or historical local units.
Limits and privacy
Conversions use fixed factors; one international avoirdupois pound equals 0.45359237 kg. Magnitudes are limited to 1e15.
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