Weight

Kilograms, pounds, ounces and stone.

About Weight

Convert weight between milligrams, grams, kilograms, metric tonnes, ounces, pounds and stone. Enter one value and every other unit is shown at once as you type.

How to use

  1. Type a value and pick its unit. The default is 1 kilogram.
  2. Every other unit updates as you type; each row has its own Copy button, and Copy on the panel copies the whole table.
  3. Results are rounded to eight decimal places and formatted for your locale.

Conversion factors

All units convert through kilograms:

Unit Kilograms
gram 0.001
metric tonne 1 000
ounce (avoirdupois) 0.028349523125
pound 0.45359237
stone 6.35029318

The pound has been defined as exactly 0.45359237 kg since 1959; an ounce is 1/16 lb and a stone is 14 lb. The ton listed is the metric tonne (1,000 kg), not the US short ton (907.18 kg) or UK long ton (1,016.05 kg). Troy ounces are not included. The value must be greater than zero.

Example

70 kg → 154.32358353 lb · 11.02311311 st · 2 469.17733647 oz · 70 000 g

Privacy

Runs in the browser. No request is made, and nothing is stored.

Frequently asked questions

How many pounds are in a kilogram?
About 2.20462 pounds. One pound is exactly 0.45359237 kg, so 10 kg is 22.05 lb and 100 lb is 45.36 kg.
How many pounds are in a stone?
14 pounds, or 6.35029 kg. Stone is used for body weight in the UK and Ireland, so 11 st 4 lb is 158 lb or 71.7 kg.
What is the difference between a ton and a tonne?
A tonne (metric ton) is 1,000 kg. A US short ton is 2,000 lb (907.18 kg) and a UK long ton is 2,240 lb (1,016.05 kg). This converter uses the metric tonne.
How many grams are in an ounce?
28.3495 grams for the avoirdupois ounce used for food and body weight. A troy ounce, used for precious metals, is 31.1035 grams.