Weight Converter
Convert between metric and imperial weight units. e.g. “How many pounds is 70 kg?”
Enter your values
Results update as you type. All calculation happens in your browser.
Methodology
Convert between metric and imperial weight units. This tool uses a standard, documented formula and runs entirely on your device.
Last reviewed January 2026 · Runs client-side
Converting between weight units
Weights appear in both metric and imperial units depending on the country, the recipe, or the label, and converting between them accurately matters more than it seems. This tool converts between grams, kilograms, ounces, pounds, and more.
It works by routing every value through grams as a common base, which keeps conversions consistent no matter which two units you pick.
How to use this calculator
- Enter the value you want to convert.
- Choose the unit you are converting from.
- Choose the unit you are converting to and read the result.
What the inputs mean
- From and to units
- Any pair of supported weight units, from milligrams up to tonnes.
70 kilograms converts to about 154.3 pounds, since one kilogram is roughly 2.2 pounds.
The formula, in plain terms
The value is converted into grams using the from-unit, then out of grams using the to-unit.
Frequently asked questions
Is a US and UK pound the same?
Yes, the pound is the same in both. It is units like the ton and stone that differ or are used differently.
How precise is the result?
It uses standard conversion factors and shows several decimals, which is ample for everyday use.
Last reviewed January 2026. This explainer is general information, not professional advice.