Sistem Metrik lwn Imperial
Kebanyakan negara menggunakan Sistem Metrik (meter, kilogram, Celsius), yang berdasarkan perpuluhan.
Nisbah Penukaran Biasa
- Length: 1 inch = 2.54 centimeters, 1 foot = 30.48 centimeters, 1 mile = 1.609 kilometers.
- Weight: 1 pound (lb) = 0.4536 kilograms, 1 ounce (oz) = 28.35 grams.
- Temperature: Fahrenheit to Celsius:
°C = (°F - 32) * 5/9.