Weight Converter
Convert between grams, kilograms, tonnes, ounces, pounds and stones. Free, fast and easy to use.
All units
| Milligram | 1,000,000 mg |
|---|---|
| Gram | 1,000 g |
| Decagram | 100 dag |
| Kilogram | 1 kg |
| Tonne | 0.001 t |
| Ounce | 35.273962 oz |
| Pound | 2.2046226 lb |
| Stone | 0.15747304 st |
How it works
Pick any two weight units and type a value in either field. Metric units are based on the kilogram; the pound is defined as exactly 0.45359237 kg, the ounce as 1/16 of a pound (28.35 g) and the stone as 14 pounds (6.35 kg).
Worked examples
- 1 lb = 0.45359237 kg
- 500 g = 17.636981 oz
- 25 dag = 250 g
Calculations run locally in your browser. Results are for information only — for engineering, electrical or financial decisions, verify the assumptions and applicable standards.
Frequently asked questions
How many grams are in an ounce?
One ounce is 28.349523125 grams; a pound has 16 ounces.
How much is a stone in kg?
One stone is 14 pounds, about 6.35 kg. It is still used for body weight in the UK and Ireland.