Loading...
Convert pounds (lb) to kilograms (kg) instantly. Full chart from 1–250 lb with formula, reverse direction, and quick estimation tips.
A pound (lb) is a US/UK customary unit of weight equal to exactly 0.45359237 kilograms. To convert lb to kg, multiply by 0.45359237; to convert kg to lb, multiply by 2.20462.
1 lb equals 0.4536 kg.
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.4536 kg |
| 2 lb | 0.9072 kg |
| 3 lb | 1.361 kg |
| 5 lb | 2.268 kg |
| 10 lb | 4.536 kg |
| 15 lb | 6.804 kg |
| 20 lb | 9.072 kg |
| 25 lb | 11.340 kg |
| 30 lb | 13.608 kg |
| 40 lb | 18.144 kg |
| 50 lb | 22.680 kg |
| 60 lb | 27.216 kg |
| 75 lb | 34.019 kg |
| 100 lb | 45.359 kg |
| 110 lb | 49.895 kg |
| 120 lb | 54.431 kg |
| 130 lb | 58.967 kg |
| 140 lb | 63.503 kg |
| 150 lb | 68.039 kg |
| 160 lb | 72.575 kg |
| 170 lb | 77.111 kg |
| 175 lb | 79.379 kg |
| 180 lb | 81.647 kg |
| 200 lb | 90.718 kg |
| 225 lb | 102.06 kg |
| 250 lb | 113.40 kg |
Chart values use the exact conversion factor 1 lb = 0.45359237 kg, rounded for display.
Formula
kg = lb × 0.45359237 | lb = kg × 2.20462kg = kilogram — SI base unit of mass (1 kg = 1,000 g)
lb = pound (avoirdupois) — US/UK customary unit (1 lb = 16 oz = 0.45359237 kg, exact)
Worked Example
Convert 175 lbs to kilograms
Did you know? The pound-to-kilogram conversion of 1 lb = 0.45359237 kg was fixed exactly by the 1959 International Yard and Pound Agreement, signed by the US, UK, Canada, Australia, New Zealand, and South Africa to unify British and American customary units.
Sources
Convert between square feet, square meters, acres, hectares, and more with quick reference tables.
Convert bra sizes between US, UK, EU, AU, and FR/IT systems. Enter band and cup size to see all equivalents.
Convert centimeters (cm) to inches (in) instantly. Full chart from 1–250 cm with formula and reverse direction.
Convert cups to US quarts. Chart, formula, and reverse direction.
Convert between joules, calories, kWh, BTU, and more. Includes food calorie conversions.
Convert feet (ft) to meters (m) instantly. Chart, height conversions, and reverse direction.