Weight Converter

Convert between kg, lbs, stones, ounces, and more.

Click any unit row to enter values in that unit.

Precision
Metric
Metric Ton t
Kilogram kg
Gram g
Milligram mg
Imperial
Pound lb
Ounce oz
Stone st
Other
Carat ct
Grain gr

Frequently Asked Questions

How many pounds are in a kilogram?

1 kilogram = 2.20462 pounds. 1 pound = 0.453592 kilograms. Quick conversion: multiply kg by 2.2 for an approximate pound value. For example, 70 kg ≈ 154 lbs.

How many kg are in a stone?

1 stone = 6.35029 kilograms = 14 pounds. Stones are commonly used to express body weight in the UK and Ireland. To convert stones to kg: multiply by 6.35. Example: 12 stone = 76.2 kg.

How many grams are in an ounce?

1 ounce (avoirdupois) = 28.3495 grams. 1 gram = 0.035274 ounces. Note: a troy ounce (used for precious metals) = 31.1035 grams and is heavier than a standard ounce.

What is the difference between mass and weight?

Mass is a measure of the amount of matter in an object (measured in kg or lbs). Weight is the force of gravity acting on that mass (measured in Newtons). In everyday use, "weight" and "mass" are used interchangeably, but scientifically an astronaut weighs less on the Moon while their mass stays the same.