Metric and imperial weight units
Weight (more precisely, mass) is measured in the metric system using milligrams, grams, kilograms and tonnes, while imperial and US customary systems use ounces, pounds and stone. This converter uses exact factors — 1 pound = 453.59237 grams, 1 ounce = 28.349523 grams and 1 stone = 14 pounds — so every result is accurate to several decimal places. It's useful for cooking and recipes, shipping and postage, fitness and body weight, and science homework.
Handy reference conversions
1 kilogram ≈ 2.205 pounds, 1 pound = 16 ounces = 0.4536 kg, 1 stone = 6.35 kg, 1 tonne = 1,000 kg ≈ 2,204.6 pounds, and 1 ounce ≈ 28.35 grams. Enter any value above to convert between all seven units at once.
Frequently asked questions
How many pounds are in a kilogram?
One kilogram equals about 2.20462 pounds.
How do I convert grams to ounces?
Divide grams by 28.3495, or multiply by 0.035274.
How many kilograms are in a stone?
One stone equals 6.35029 kilograms, which is 14 pounds.
Does this converter work offline?
Yes — once the page has loaded it works entirely in your browser without an internet connection.