Weight Converter
Convert weight and mass between kilograms, pounds, ounces, grams, metric tons, milligrams, and stone.
About This Free Online Weight Converter
Our free online weight converter instantly converts mass between metric and imperial units — milligrams, grams, kilograms, metric tons, ounces, pounds, and stone. Enter a value, choose your starting unit, and every other unit updates live. Showing all units at once is perfect for cooking, shipping, fitness, and science. All conversions run in your browser, so your data stays private.
Features of Our Weight Converter
- Convert mg, g, kg, tonnes, ounces, pounds, and stone
- See all weight units update at once
- Metric to imperial and imperial to metric
- Handles decimals and large masses
- Live results as you type
- 100% private — browser-only processing
How to Use the Weight Converter
The Weight Converter works right in your browser — no signup, no installation. Follow these steps:
- Enter a weight or mass value in the input field.
- Select the unit you are converting from.
- Read the equivalent in every other unit instantly.
- Click Copy to copy the full conversion summary.
Frequently Asked Questions About Weight Converter
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. To convert kilograms to pounds, multiply by 2.20462. This tool handles it automatically.
How do I convert grams to ounces?
Divide the gram value by 28.349523125, since one ounce equals about 28.35 grams. For example, 100 g ≈ 3.53 ounces.
What is a stone in weight?
A stone is a British imperial unit equal to 14 pounds, or about 6.35 kilograms. It is commonly used for body weight in the UK and Ireland.
Is mass the same as weight?
Strictly, mass is the amount of matter and weight is the force of gravity on it, but in everyday use the units are converted interchangeably. This tool converts the common mass and weight units people use day to day.
Why Choose the Weight Converter?
The Weight Converter gives you precise, real-time conversions without the ad-heavy clutter of most converter sites. It runs in your browser, supports the units people actually search for, and never sends your figures anywhere.