Weight Converter
The kilogram (kg) is the SI base unit of mass, used in most countries. One pound is defined as exactly 0.45359237 kilograms. The stone is used primarily in the UK and Ireland for measuring body weight — one stone equals exactly 14 pounds or approximately 6.35 kilograms.
The metric tonne (t) equals 1,000 kilograms, approximately 2,204.6 pounds or 157.5 stone. It differs from the US short ton (2,000 lb) and the UK long ton (2,240 lb).
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Frequently Asked Questions
How many kg in a pound?
One pound equals exactly 0.45359237 kilograms. One kilogram equals 2.20462 pounds. To convert pounds to kg, multiply by 0.4536. A useful shortcut: divide pounds by 2.2 for a quick kg estimate.
How many grams in an ounce?
One ounce equals 28.3495 grams. To convert ounces to grams, multiply by 28.3495. There are 16 ounces in one pound, which equals approximately 453.59 grams.
What is a stone in weight?
A stone is a unit of weight equal to 14 pounds or approximately 6.35 kilograms. The stone (st) is used primarily in the United Kingdom and Ireland for measuring body weight. It is not used in most other countries.
How many ounces in a pound?
One pound (lb) equals 16 ounces (oz) in the avoirdupois system used for everyday weight measurement. To convert pounds to ounces, multiply by 16. One ounce equals 28.3495 grams, so one pound equals approximately 453.59 grams.