Method and practical guide
Weight conversion for kilograms, pounds, and ounces
Convert kilograms, grams, milligrams, metric tons, pounds, and ounces for recipes, fitness records, shipping, and product comparisons.
How it is calculated
Kilograms are the internal reference. The source value is multiplied by its kilogram factor and divided by the target unit factor.
Reference values
- 1 kilogram = 1,000 grams
- 1 metric ton = 1,000 kilograms
- 1 pound = exactly 0.45359237 kilograms
- 1 ounce = 28.349523125 grams
Worked examples
- 2 kilograms = 2,000 grams
- 10 pounds = 4.5359237 kilograms
- 500 grams is about 17.637 ounces
Common uses
Recipes commonly switch between grams and ounces, while international shipping and fitness equipment often use both kilograms and pounds.
Accuracy and scope
This page converts units of mass. Everyday usage often calls this weight, but precision physics distinguishes mass from gravitational force.