Weight & Mass Converter
Convert common mass units such as kilograms, grams, pounds, ounces, stone, metric tonnes and U.S. short tons. This page also handles the high-volume kg-to-lb and lb-to-kg conversions directly.
Conversions use exact defined factors where standards provide them and conventional reference factors otherwise. Round the result to the precision appropriate for your application.
How this tool works
Mass conversion uses the kilogram as the base unit. The international avoirdupois pound is exactly 0.45359237 kilogram.
Example
10 kilograms converts to about 22.0462 pounds, and 100 pounds converts to about 45.3592 kilograms.
Common questions
How many pounds are in one kilogram?
One kilogram is approximately 2.2046226218 pounds.
Are weight and mass technically the same?
No. Mass is the quantity of matter; weight is force due to gravity. Everyday conversion searches often use the words interchangeably, so this tool labels both while converting mass units.