Weight and Mass Converter
Convert weight and mass between kilograms, grams, pounds, ounces, stones, and metric, short and long tons. Free instant converter.
On your device: nothing you enter here is uploaded.
Value
Equivalents
- Milligrams
- 1,000,000
- Grams
- 1,000
- Kilograms
- 1
- Ounces
- 35.274
- Pounds
- 2.2046
- Stones
- 0.157473
- Metric tons
- 0.001
- Short tons (US)
- 0.001102
- Long tons (UK)
- 0.000984
What this tool is for
Kilograms to pounds and back, plus the units that cause the most confusion: stones, still used for body weight in Britain, and three different tons that differ by enough to matter.
Kilograms to pounds
One kilogram is 2.20462 pounds. Multiply kilograms by 2.2046 for pounds, or for a quick estimate double the number and add a tenth: 70 kg is 140 + 14 = 154 lb.
| Kilograms | Pounds |
|---|---|
| 1 kg | 2.2 lb |
| 5 kg | 11.02 lb |
| 10 kg | 22.05 lb |
| 20 kg | 44.09 lb |
| 50 kg | 110.23 lb |
| 60 kg | 132.28 lb |
| 65 kg | 143.3 lb |
| 70 kg | 154.32 lb |
| 75 kg | 165.35 lb |
| 80 kg | 176.37 lb |
| 90 kg | 198.42 lb |
| 100 kg | 220.46 lb |
Pounds to kilograms
One pound is exactly 0.45359237 kilograms, by international agreement since 1959. Multiply pounds by 0.4536, or halve the number and subtract a tenth of the half: 150 lb is 75 - 7.5 = 67.5 kg, close to the exact 68.04.
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.45 kg |
| 5 lb | 2.27 kg |
| 10 lb | 4.54 kg |
| 100 lb | 45.36 kg |
| 120 lb | 54.43 kg |
| 130 lb | 58.97 kg |
| 140 lb | 63.5 kg |
| 150 lb | 68.04 kg |
| 160 lb | 72.57 kg |
| 180 lb | 81.65 kg |
| 200 lb | 90.72 kg |
| 250 lb | 113.4 kg |
Stones, ounces and tons
A stone is 14 pounds, about 6.35 kg, and is still how body weight is usually stated in the UK and Ireland, often as stones and pounds, such as 11 st 4 lb. An ounce is a sixteenth of a pound, 28.35 grams.
Tons are where real mistakes happen. A metric tonne is 1000 kg. A US short ton is 2000 lb, about 907 kg. A UK long ton is 2240 lb, about 1016 kg. Shipping quotes and engineering specs that just say "ton" deserve a question.
| Stones | Pounds | Kilograms |
|---|---|---|
| 8 st | 112 lb | 50.8 kg |
| 9 st | 126 lb | 57.2 kg |
| 10 st | 140 lb | 63.5 kg |
| 11 st | 154 lb | 69.9 kg |
| 12 st | 168 lb | 76.2 kg |
| 13 st | 182 lb | 82.6 kg |
| 14 st | 196 lb | 88.9 kg |
| 15 st | 210 lb | 95.3 kg |
| 16 st | 224 lb | 101.6 kg |
How to use it
- Enter a value in any unit.
- Read every equivalent at once.
- Copy the result you need.
Frequently asked questions
How many pounds in a kilogram?
Approximately 2.20462. The exact definition runs the other way: one pound is exactly 0.45359237 kilograms.
Which ton is which?
A metric ton is 1000 kilograms. A US short ton is 2000 pounds, about 907 kilograms. A UK long ton is 2240 pounds, about 1016 kilograms. Shipping quotes have gone wrong over this.