Length converter

See millimeters, centimeters, meters, kilometers, inches, feet, yards and miles together as you type.

How it works

Tap a unit, then type your value. Every other unit updates immediately, so you don't need to choose a target unit first. It works for anything from a screw size to a road trip.

Keep it on your iPhone

This tool is one of 20 in ConvCalc, alongside a scientific calculator with history. The app is free and has no ads.