Weight and mass converter

Convert milligrams, grams, kilograms, ounces, pounds, stone and tons, along with less common units such as drams and slugs.

How it works

Tap a unit and type your value to see all the others. It covers kitchen scales, body weight, luggage limits and freight. The tons are listed separately as short, long and metric, because they aren't the same.

Keep it on your iPhone

This tool is one of 20 in ConvCalc, alongside a scientific calculator with history. The app is free and has no ads.