Quick Convert

How to play

Convert between units as fast as you can. A hint with the conversion rule is shown on each question. Categories unlock with level: time (1 hr = 60 min), fractions↔percentages, decimals↔fractions, speed (1 m/s = 3.6 km/h), temperature (°F = °C × 9/5 + 32), distance (1 mi ≈ 1.6 km), roman numerals → decimal, weight (1 kg ≈ 2.2 lbs), imperial length (12 in = 1 ft, 3 ft = 1 yd), length (1 in ≈ 2.5 cm), volume (1 gal ≈ 3.8 L), binary↔decimal, hexadecimal↔decimal.

Examples

90 min  →  1.5 hr
1010₂  →  10
XIV  →  14