Cycling Speed Calculator
Calculate your cycling speed, time, or distance based on the other two variables.
CyclingDetermine the Gear Ratio for Your Mountain Bike Based on Tire Size, Chainring, and Sprocket
Mountain Bike Gear Ratio Calculator
Calculate the gear ratio for your mountain bike based on the tire size, chainring, and sprocket.
Mountain Bike Gear Ratio Calculator
This calculator is preset with typical mountain bike specifications. Adjust the parameters to match your specific mountain bike setup and explore different gear combinations.
mm
RPM
°
32
11
13
15
17
19
21
23
25
28
32
Bicycle Gear Ratio Chart
You can hover each gear combination to see the development, speed, and chain angle.
The gear ratio chart is best viewed on a larger screen. You can find all the data in the table below.
Total Gear Range: 290.9%
Bicycle Gear Ratio Table
| 32 | 28 | 25 | 23 | 21 | 19 | 17 | 15 | 13 | 11 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 32 | 1.00 11.4 km/h 2.10 m | 1.14 13.0 km/h 2.41 m | 1.28 14.5 km/h 2.69 m | 1.39 15.8 km/h 2.93 m | 1.52 17.3 km/h 3.21 m | 1.68 19.1 km/h 3.55 m | 1.88 21.4 km/h 3.96 m | 2.13 24.2 km/h 4.49 m | 2.46 28.0 km/h 5.18 m | 2.91 33.1 km/h 6.12 m |
Need to calculate the correct Chain length for this gear ratio?
Selected Cassette: 11-32
Selected Chainrings: 32