Weight Converter

Convert mass units including grams, kilograms, ounces, pounds, and stones.

Weight Converter
Local input
Output
Processing…
About this tool

Made for the task at hand.

Convert mass measurements across metric and common imperial units. Calculations use kilograms as the reference, with the international avoirdupois pound defined as exactly 0.45359237 kilograms.

How to use

  1. Enter the numeric mass separately from its unit.
  2. Set the source abbreviation, such as kg, g, oz, or lb.
  3. Choose the target unit and copy the labeled conversion result.
Your work stays yours.
Tool inputs are processed locally in your browser and are never sent to KitVerse servers. Clear the workspace when using a shared device.
Common questions
Does tonne mean a US short ton?

No. The unit t is a metric tonne of 1000 kilograms, not a US short ton or UK long ton.

Is this converting weight or mass?

Strictly, these are mass units. “Weight” is used as the familiar everyday label, independent of local gravity.