Convert any length in seconds. Enter a value and choose your units to convert between metres, centimetres, kilometres, inches, feet, yards and miles.
Every unit is defined relative to the metre. The calculator converts your value into metres, then into your target unit, so conversions are exact and instant. 1 inch = 2.54 cm, 1 foot = 30.48 cm, and 1 mile is about 1.609 km. For temperature, see our temperature converter.
Whether you're reading a recipe, a DIY plan or a product spec, mixing metric and imperial is common. This converter bridges them cleanly. Planning a trip? Our fuel cost calculator estimates the cost of the journey.