Quick reference
- 1 inch = 2.54 centimetres; 1 foot = 30.48 cm; 1 mile = 1.609344 km
- 1 kilogram ≈ 2.20462 pounds; 1 ounce ≈ 28.3495 grams
- °F = °C × 9/5 + 32; K = °C + 273.15
- 1 acre = 43,560 sq ft ≈ 4,046.86 m²; 1 hectare = 2.471 acres
- 1 GB (decimal) = 1,000 MB; 1 GiB (binary) = 1,024 MiB
How to use
Pick a category, type a value and choose the units. The result updates as you type, and the table shows the value in every unit of that category at once.