Cadence to Speed Calculator
Enter cadence, gear ratio and wheel circumference to get your speed in km/h and mph.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
A cyclist's road speed comes from three factors multiplied together: pedalling cadence (rpm), the gear ratio (chainring teeth ÷ cassette cog teeth), and the wheel circumference. Each pedal revolution turns the rear wheel by the gear ratio, and each wheel revolution covers one circumference of ground.
This calculator chains those together — cadence × gear ratio × wheel circumference, adjusted for units and time — to output speed in both km/h and mph. Cyclists and coaches use it to plan gear selection for a target speed, or to understand why a given cadence feels faster in a taller gear.
Was this helpful?
Popular calculators
Loan Calculator
Monthly payment, total interest and full amortization schedule.
Percentage Calculator
Percent change, percent of, and ratio calculations.
Discount Calculator
Calculate final price, savings, and discount amount.
BMI Calculator
Body mass index from height and weight (metric or imperial).
Age Calculator
Compute your exact age in years, months and days from a birth date.
Compound Interest Calculator
Calculate the final amount and interest earned with compounding.
All Calculators
No calculators found
Comments (0)