How it works
Convert body weight, package weights, recipe quantities or freight between metric units, US and imperial units, and specialty units such as troy ounces for precious metals and carats for gemstones.
The pound is defined as exactly 0.45359237 kilograms. An ounce is 1/16 of a pound, a stone is 14 pounds, a US short ton is 2,000 pounds and a UK long ton is 2,240 pounds.
Formula
Result = value × (kg per from-unit) ÷ (kg per to-unit). 1 lb = 0.45359237 kg exactly.
Questions people ask
How many pounds are in a kilogram?
About 2.20462 pounds. Multiply kilograms by 2.20462, or divide pounds by 2.20462 to get kilograms.
Is a troy ounce heavier than a regular ounce?
Yes. A troy ounce is 31.1035 g, while an avoirdupois ounce is 28.3495 g. Gold and silver prices are quoted per troy ounce.
What is the difference between weight and mass?
Mass is the amount of matter and is measured in kilograms; weight is the force of gravity on that mass. In everyday use, including on scales, "weight" in kg or lb means mass.
How many pounds is a stone?
Exactly 14 pounds (6.35029 kg). Stones are still commonly used for body weight in the UK and Ireland.