Weight Converter
Convert between 8 weight units — metric and imperial. Live update as you type.
Quick reference conversions
| From | To | Equals |
|---|---|---|
| 1 kilogram | pounds | 2.20462 lb |
| 1 pound | grams | 453.592 g |
| 1 ounce | grams | 28.3495 g |
| 1 stone | kilograms | 6.35029 kg |
| 1 metric tonne | pounds | 2,204.62 lb |
| 1 US short ton | kilograms | 907.185 kg |
Frequently asked questions
What is the difference between mass and weight?
Mass is the amount of matter in an object (measured in kilograms); weight is the force gravity exerts on that mass (measured in newtons). In everyday use the words are interchangeable because we live on Earth where gravity is approximately constant. This converter treats them as equivalent, which is correct for practical purposes.
What is a stone?
Stone is a unit of mass equal to 14 pounds (approximately 6.35 kg), used primarily in the UK and Ireland for expressing human body weight. It is rarely used in other contexts or countries.
What is the difference between a short ton and a metric tonne?
A US short ton is 2,000 pounds (≈ 907 kg). A metric tonne (also spelled “ton” in SI contexts) is exactly 1,000 kg (≈ 2,205 lb). A UK long ton is 2,240 pounds (≈ 1,016 kg). These differences matter in international trade and shipping.
