What is the Weight Converter?
This weight converter changes a value from one unit to another and also shows the same value in every other unit. Weight here means mass, as used on everyday scales.
How to use the Weight tool
- Enter Value, From and To.
- The result updates instantly as you type, or press Calculate.
- Use Try an example to see how it works, and Reset to start again.
Formula
Value in base unit = value × factor of the "from" unit. Result = base value ÷ factor of the "to" unit.
Worked example
With the defaults shown, the result is 68.0388555 Kilograms (kg).
Frequently asked questions
How many kilograms are in a pound?
One pound is exactly 0.45359237 kilograms.
How many pounds are in a stone?
There are 14 pounds in a stone.
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Checked by Calcovate · Formula tested against worked examples · Updated 9 Nov 2026 · How we check our calculators.