Unit Conversion

Quick unit converters for distance, weight and volume, plus reference tables aimed at cyclists and bike-trials riders — tyre pressure (bar ↔ psi), wheel and component sizes (mm ↔ inch) and bike weight (kg ↔ lb). Type a value into any box and press Calculate to convert it across every unit in that row; press Calibrate to clear.

Shoe Size Conversion Table

Quick Reference for Cyclists

Handy fixed conversions for bike setup. Tyre pressure uses 1 bar = 14.5 psi, length 1 inch = 25.4 mm, and weight 1 kg = 2.205 lb.

Tyre pressure — bar to psi

Length — inches to millimetres

Bike weight — kilograms to pounds