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Development Calculator — Distance Per Pedal Revolution
Calculate how far your bike travels per pedal revolution.
How We Calculate This
Development Formula
Development (m) = (Chainring / Sprocket) x Wheel Circumference (m)
Each pedal revolution turns the rear wheel by the gear ratio. The distance per wheel turn equals the wheel circumference.
Frequently Asked Questions
Development is the distance your bike moves forward for each complete turn of the pedals. It is measured in metres per revolution.
A comfortable cruising development on a road bike is about 5-7 metres. Climbing gears give 2-4 metres. Top gears give 8-10+ metres per revolution.
Development is the standard way to compare gears in continental Europe. It is particularly useful for comparing gears across different wheel sizes (e.g. 700c vs 650b).
Related Calculators
Gear Inch Calculator
Calculate gear inches, development in metres and speed at 80, 90 and 100 rpm for any chainring, cog, wheel size and tyre width combination.
Speed in Gear Calculator
Calculate road speed for any gear at a given cadence.
Cadence Calculator
Calculate required cadence for a target speed in any gear.
Gear Ratio Calculator
Calculate gear ratios from chainring and sprocket tooth counts.
Hub Gear Calculator
Calculate effective gear ratios for internal hub gear systems.
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Last updated: June 2026
All calculations are estimates. Always verify results and consult a professional bike fitter where appropriate.