Weight & Mass Converter

Convert weight and mass measurements between ounces, pounds, stones, grams, kilograms, and tons instantly.

About this converter

This weight and mass converter lets you enter any measurement, pick a starting unit, and choose the unit you want to convert to. It covers six common units — ounces, pounds, stones, grams, kilograms, and tons — using exact gram-based factors. The ton used is the US short ton (2,000 lb). Conversions are accurate to full floating-point precision.

Field explanations

Value
The numeric weight or mass you want to convert. Enter any positive number including decimals.
From
The unit your value is already expressed in (e.g. pounds, kilograms).
To
The unit you want the result in. Change this at any time without re-entering your value.