Everyday utility

Weight Calculator

Convert weight or body weight between pounds, kilograms, stones, and other common units. Use this Data and utilities tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
Common questions
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How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

Weight conversion: 1 kg = 2.20462 lbs = 0.157473 stones. Stones are used in UK/Ireland for body weight. 1 stone = 14 pounds. This calculator converts between all common weight units.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

How many pounds in a stone?

1 stone = 14 pounds = 6.35029 kilograms. Stones are traditionally used in the UK and Ireland to measure body weight.