📏 All-in-One Unit Converter
Convert between metric, imperial, and other units across 6 categories: length, weight, temperature, area, volume, and speed. Instant results as you type.
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📖 Common Conversions Reference
📏 Length
- 1 inch = 2.54 cm | 1 foot = 30.48 cm = 12 inches
- 1 yard = 0.9144 m | 1 mile = 1.609 km
- 1 meter = 3.281 feet | 1 km = 0.6214 miles
⚖️ Weight
- 1 pound (lb) = 0.4536 kg | 1 ounce = 28.35 g
- 1 kg = 2.205 lbs | 1 stone = 14 lbs = 6.35 kg
- 1 ton (US) = 2,000 lbs = 907.2 kg
🌡️ Temperature
°F = °C × 9/5 + 32
K = °C + 273.15
- Water freezes: 0°C = 32°F = 273.15 K
- Water boils: 100°C = 212°F = 373.15 K
- Body temperature: 37°C = 98.6°F
📐 Area
- 1 acre = 43,560 sq ft = 4,047 m²
- 1 hectare = 10,000 m² = 2.471 acres
- 1 sq mile = 640 acres = 2.59 km²
🧪 Volume
- 1 US gallon = 3.785 liters | 1 liter = 0.264 gallons
- 1 cup = 8 fl oz = 237 mL
- 1 cubic meter = 1,000 liters
🚀 Speed
- 1 mph = 1.609 km/h | 1 km/h = 0.621 mph
- 1 m/s = 3.6 km/h = 2.237 mph
- 1 knot = 1.852 km/h = 1.151 mph