Convert length, weight, temperature, area, volume, and speed instantly — accurate, fast, and completely free.
Quick references people look up every day.
1 mile = 1.609 kilometers · 1 foot = 0.3048 meters
1 pound = 0.4536 kilograms · 1 ounce = 28.35 grams
0 °C = 32 °F · 100 °C = 212 °F
1 acre = 4046.86 m² · 1 hectare = 10,000 m²
1 gallon (US) = 3.785 liters · 1 cup = 236.6 ml
1 mph = 1.609 km/h · 1 knot = 1.852 km/h
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Results update as you type — no button clicking, no waiting.
Conversions use precise, standard factors for reliable results.
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