Weight converter
Free weight / mass converter between metric and imperial — grams, kilograms, metric tons, ounces, pounds, stones, US and UK tons, carats, grains, and troy ounces (for precious metals). Based on the exact 1959 pound definition.
Mass. Everyday, imperial, and precious metals.
1 kg = 2.20462 lb
How to use weight converter
- 01Pick a category
Length, weight, temperature, or pressure. Each has its own dedicated page with the complete unit list.
- 02Type your value
Enter the number you want to convert. The result updates instantly as you type — no submit button.
- 03Swap units
Use the From and To pickers to choose any pair — metric, imperial, SI, or exotic. Swap with one click.
- 04Copy the result
Tap the copy button next to the output to paste the result anywhere.
- 05Reuse from history
Recent conversions are saved to your browser locally so you can re-run them without retyping.
Examples
Frequently asked questions
How many pounds are in a kilogram?
A kilogram equals 2.20462 pounds. The pound is defined as exactly 0.45359237 kilograms, so the conversion is exact.
What's a stone in pounds?
One stone is 14 pounds (6.35029 kg). Still widely used in the UK and Ireland for body weight.
Troy ounce vs regular ounce?
A troy ounce (used for gold, silver, platinum) is 31.1035 grams — about 10% heavier than a standard avoirdupois ounce (28.3495 grams). Always verify which is quoted in precious-metal pricing.
Is a metric ton the same as a US ton?
No. A metric ton (tonne) is exactly 1,000 kg (2,204.62 lb). A US short ton is 2,000 lb (907.185 kg). A UK long ton is 2,240 lb (1,016.05 kg). This converter includes all three.
Last updated . Built by Tooligan.