Unit Conversion Cheat Sheet: Length, Weight, Temperature, Data and More

Bookmark this page: it's every conversion you'll Google this year, with the exact factor and a converter that does it instantly.

Length

1 mile = 1.609 km · 1 foot = 30.48 cm · 1 inch = 2.54 cm. Marathon = 42.195 km = 26.2 miles. Convert anything in the length converter.

Weight

1 kg = 2.2046 lb · 1 lb = 453.6 g · 1 oz = 28.35 g. Gym plates abroad, grocery recipes, airline baggage — the weight converter handles all of it.

Temperature

°F = °C × 9/5 + 32. Body temp 37°C = 98.6°F; oven "moderate" 180°C = 356°F; weather quick-check: 30°C ≈ hot (86°F), 0°C = 32°F. Exact values in the temperature converter.

Data storage (the sneaky one)

Computers count in 1024s: 1 GB = 1024 MB = 1,048,576 KB. Drive makers count in 1000s, which is why your "1 TB" disk shows ~931 GB. The data converter uses the binary convention your OS uses.

Volume and area

1 US gallon = 3.785 L · 1 cup = 236.6 ml — critical for American recipes (volume converter). 1 acre = 4,047 m² · 1 hectare = 2.47 acres — land listings decoded in the area converter.

Speed, time, energy, pressure

100 km/h = 62 mph (speed) · 1 day = 86,400 seconds (time) · 1 kWh = 3.6 million joules (energy) · 1 bar = 14.5 PSI, handy for tyre pressure (pressure).

Every converter runs offline-fast in your browser and accepts decimals in any field — convert in whichever direction you're stuck.