Convert between kilograms, pounds, ounces, grams, stones, and tons with live results.
This tool converts between nine weight and mass units using internationally defined conversion factors. The input value is first converted to kilograms (the SI base unit for mass), then converted to the target unit. Both the result and the underlying conversion factor are shown so you can verify each calculation.
| From | To | Factor |
|---|---|---|
| 1 Kilogram | Pounds | 2.20462 |
| 1 Pound | Kilograms | 0.453592 |
| 1 Ounce | Grams | 28.3495 |
| 1 Stone | Kilograms | 6.35029 |
| 1 Metric Ton | Pounds | 2204.62 |
| 1 US Ton | Kilograms | 907.185 |
| 1 UK Ton | Kilograms | 1016.05 |
In everyday language, weight and mass are used interchangeably, but in physics they differ. Mass measures the amount of matter in an object (kilograms), while weight is the force exerted by gravity on that mass (newtons). For practical conversions on Earth, this distinction does not affect the numbers, so this tool works perfectly for cooking, shipping, fitness tracking, and scientific unit conversions alike.