Weight & Mass Converter

Convert between kilograms, pounds, ounces, grams and more.

What is a Weight Converter?

A weight converter translates measurements of mass or weight between metric units (grams, kilograms, tonnes) and imperial/US customary units (ounces, pounds, tons). Weight conversions are used in cooking, shipping, fitness, and scientific contexts.

How to Use This Tool

  1. Enter a value in any unit field.
  2. All other fields update instantly.

Common Weight Conversions

1 kilogram = 2.20462 pounds. 1 pound = 453.592 grams. 1 ounce = 28.3495 grams. 1 stone (UK) = 14 pounds = 6.35 kilograms. 1 metric tonne = 1,000 kilograms = 2,204.62 pounds.

Weight vs Mass

Technically, weight is a force (measured in Newtons) while mass is a quantity of matter (measured in kilograms). In everyday usage, people use "weight" when they mean mass. This tool converts units of mass.

Frequently Asked Questions

How many pounds in a kilogram?

1 kilogram = 2.20462 pounds.

What is a stone used for?

Stone is a unit of weight used in the UK and Ireland, primarily for measuring body weight. 1 stone = 14 pounds.

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**Disclaimer:** All conversions happen in your browser. Files and data are not uploaded to any server. Conversion results are calculated using standard formulas — verify critical calculations with authoritative sources.