Weight Converter
Convert kilograms, pounds, ounces and stones.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Converts between metric and imperial mass units, including stones and troy ounces, and displays the value in every unit at once. Useful for shipping labels, recipes and fitness tracking.
How to use it
- Enter the value and choose the unit.
- Read the full conversion table.
- Copy the row that matches your destination unit.
Frequently asked questions
Is weight the same as mass?
Strictly, no: mass is the amount of matter and weight is a force. Everyday usage treats them as the same, and the conversion factors here are for mass.
What is a stone?
14 pounds, used mainly in the UK and Ireland for body weight.
Keep going
Related tools
Unit Converter
Convert length, weight, volume, speed, area and data units.
Length Converter
Convert metres, feet, inches, miles and more.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine.
Percentage Calculator
Solve the three percentage questions in one place.
Percentage Change Calculator
Measure increase or decrease between two values.
Discount Calculator
Find the sale price and the amount saved.