Unit conversion
Length, weight, temperature, volume, speed and data.
Metric to imperial and back, using exact conversion factors rather than the rounded ones people memorise.
- Angles Degrees, radians, gradians and turns.
- Length Millimetres, centimetres, metres, inches, feet and yards.
- Speed mph, km/h, metres per second, knots and feet per second.
- Temperature Celsius, Fahrenheit and Kelvin — the one conversion that is not a factor.
- Time units Seconds, minutes, hours, days, weeks and years.
- Unit converter Length, weight, area and volume, converted with exact factors.
- Weight Kilograms, grams, pounds, tonnes and both kinds of ton.