Weight converters
Kilograms, pounds, ounces, grams, stone and tons, using the exact international pound (0.45359237 kg).
Precision (significant figures)
Formula
lb = kg × 2.20462
1 kg = 2.20462 lb
All weight converters
| Converter | Units | Typical use |
|---|---|---|
| Kilograms to Pounds | kg → lb | Body weight, luggage and gym plates |
| Pounds to Kilograms | lb → kg | Body weight and recipes |
| Grams to Ounces | g → oz | Recipes, postage and portions |
| Ounces to Grams | oz → g | US recipes on a metric scale |
| Stone to Kilograms | st → kg | UK body weight in kilograms |
| Kilograms to Stone | kg → st | Body weight in stone and pounds |
| US Tons to Metric Tons | US ton → t | Freight, materials and vehicle weights |
Common situations
Why people usually need a weight conversion, and which tool answers it.
The airline allows 23 kg per bag and your bathroom scale reads pounds.
The limit and the scale speak different units. The risk: an overweight-bag fee at the check-in desk.
Your doctor, app or gym uses kilograms (or stone) and you think in pounds.
Progress is hard to follow across units. The risk: misreading your own numbers.
What you need
Your weight in the unit you understand.
Kilograms to PoundsPounds to KilogramsStone to KilogramsKilograms to Stone
A recipe from another country lists grams or ounces.
Your scale or cups use the other system. The risk: a cake that fails because the ratios were off.
Related calculators
| Calculator | Typical use |
|---|---|
| Gravel Calculator | Paths and driveways, in yards and tons |
| Cups to Grams | Baking by weight from US recipes |