Bicycle Frame Size Calculator

This tool helps you measure your bike frame by giving you detailed instructions and a frame diagram showing you exactly what to measure. Once you know the frame size of your bike, you'll get a rider chart showing how tall a person should be to ride the bike.

Choose a bicycle type:

Road Bike

Road bikes, designed for paved surfaces, are ideal for road riding, racing, touring and commuting.

Mountain Bike

Mountain bikes are designed for off-road riding on rough terrain such as dirt, mud, gravel, roots and rocks.

BMX Bike

BMX bikes are designed for racing, jumping and freestyle riding on dirt tracks, ramps and in skate parks.

Kids Bike

Kids bikes have smaller frames and wheels and are designed to help children learn to ride.