Unit Converter
Convert length, weight, volume, temperature, area and data between US and metric units.
LengthWeightVolumeTemperatureAreaData
1 mm =
0.1 cm
All units
| mm | 1 |
| cm | 0.1 |
| m | 0.001 |
| km | 1.0000e-6 |
| in | 0.03937 |
| ft | 0.003281 |
| yd | 0.001094 |
| mi | 6.2137e-7 |
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Common conversions
- Length: 1 ft = 12 in; 1 yd = 3 ft; 1 mi ≈ 1,609.34 m; 1 m ≈ 3.2808 ft.
- Weight: 1 lb = 16 oz = 0.4536 kg; 1 stone = 14 lb; 1 kg ≈ 2.2046 lb.
- Volume (US): 1 gal = 4 qt = 8 pt = 16 cups = 3,785.41 mL.
- Temperature: °F = °C × 9/5 + 32; K = °C + 273.15.
- Data: based on 1 KB = 1,024 bytes (binary).
Volume units use US customary measures. All conversions run locally in your browser.
Frequently Asked Questions
- How many feet are in a mile?
- There are 5,280 feet in a mile, and 1 mile ≈ 1,609.34 meters.
- How many ounces are in a pound?
- 1 pound = 16 ounces = 0.4536 kilograms; 1 kilogram ≈ 2.2046 pounds.
- How do I convert Fahrenheit to Celsius?
- °C = (°F − 32) × 5/9, and °F = °C × 9/5 + 32. Kelvin K = °C + 273.15.
- How many cups are in a gallon?
- In US measures, 1 gallon = 4 quarts = 8 pints = 16 cups = 3,785.41 mL.
📅 Last updated: June 2026 · Formulas follow standard banking / tax conventions · Results are for reference only.