Weight Converter
Convert between kilograms, grams, milligrams, metric tons, pounds, ounces, stone, US (short) tons, UK (long) tons and newtons. The pound is exactly 0.45359237 kg, so kilograms to pounds and every related factor is exact. Newtons are included for the common kg to newton question, which is really a mass-to-force conversion at standard gravity.
1 kilogram = 2.2046226 pounds. Formula: lb = kg × 2.2046226 (or kg ÷ 0.45359237)
1 kilogram in all weight units
| Milligrams (mg) | 1,000,000 |
| Grams (g) | 1,000 |
| Metric tons (t) | 0.001 |
| Ounces (oz) | 35.273962 |
| Pounds (lb) | 2.2046226 |
| Stones (st) | 0.15747304 |
| US tons (US ton) | 0.0011023113 |
| UK tons (UK ton) | 0.0009842065 |
| Newtons (N) | 9.80665 |
Weight units on this page
| Unit | Symbol | 1 unit equals |
|---|---|---|
| Milligram | mg | 0.000001 kg |
| Gram | g | 0.001 kg |
| Kilogram | kg | 1 kg |
| Metric ton | t | 1,000 kg |
| Ounce | oz | 0.028349523 kg |
| Pound | lb | 0.45359237 kg |
| Stone | st | 6.3502932 kg |
| US ton (short) | US ton | 907.18474 kg |
| UK ton (long) | UK ton | 1,016.0469 kg |
| Newton (weight) | N | 0.10197162 kg |
To convert, the value is first expressed in the base unit and then divided by the factor of the target unit, so any pair of units on this page can be converted in one step.
Common weight conversions
| From | To |
|---|---|
| 1 kilogram | 2.2046226 lb |
| 1 pound | 0.45359237 kg |
| 1 kilogram | 1,000 g |
| 1 kilogram | 0.001 t |
| 1 metric ton | 1,000 kg |
| 1 kilogram | 9.80665 N |
| 1 ounce | 28.349523 g |
| 1 stone | 6.3502932 kg |
| 1 pound | 16 oz |
| 1 us ton (short) | 907.18474 kg |
Three tons, two ounces and one newton
A ton can mean three things. The metric ton (tonne, often written MT in India) is 1,000 kg. The US short ton is 2,000 lb, or 907.18 kg. The UK long ton is 2,240 lb, or 1,016.05 kg. The kg to ton page defaults to the metric ton. An ounce of weight (28.35 g) is not a fluid ounce (a volume, 29.57 mL), so use the volume converter for liquids. Kilograms to newtons multiplies by 9.80665, the standard acceleration of gravity, and gives the weight force of a mass rather than a different mass unit.
Kilograms to liters, gallons or meters are not weight conversions at all. Kilograms to liters depends on density and has its own kg to liter converter. Kilograms to bar is a pressure question, usually meaning kgf/cm² to bar, which the pressure converter handles.
Frequently asked questions
How many pounds are in a kilogram?
1 kilogram = 2.2046226 pounds. A quick estimate is to double the kilograms and add 10%. The kg to lbs page has a full table.
How many grams are in a kilogram?
1,000. The prefix kilo means one thousand, so 2.5 kg is 2,500 g and 250 g is 0.25 kg.
How do I convert kg to newtons?
Multiply by 9.80665. A 70 kg person weighs about 686.5 N on Earth. The factor is standard gravity, so the answer would differ on the Moon or Mars.
What is a stone?
A stone is 14 pounds, or 6.35 kg. It is used for body weight in the UK and Ireland: 11 stone is 154 lb or 69.9 kg.
Related calculators
Last updated . Formulas are shown on the page and checked against the worked example.
Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.