How to use Cycling Gear and Cadence Planner
- Enter front and rear tooth lists, measured wheel circumference, its unit and one cadence.
- Review the gear matrix, metres of wheel travel per crank turn and theoretical speed at that cadence.
- Download CSV for rows, JSON to continue editing later, or PDF for a printable copy. Review exports before sharing them.
Example: Cycling Gear and Cadence Planner
Compare entered gears at a stated wheel circumference and cadence.
Options
- Circumference
- The form asks for distance travelled in one wheel revolution, rather than diameter. Units are mm, cm, m or in.
- Gear and cadence inputs
- Use up to 6 front chainrings and 14 rear sprockets. One cadence from 20–200 rpm applies to the matrix; revise it to compare another cadence.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
The drivetrain calculation is mechanical
Wheel travel per crank revolution is wheel circumference multiplied by front teeth divided by rear teeth. Cadence turns that travel into a theoretical speed. A measured circumference can reflect the actual wheel better than a nominal tyre size. The calculation ignores slip, effort, gradients and aerodynamics.
Questions about Cycling Gear and Cadence Planner
Does it estimate the effort needed?
No. The output is mechanical travel and theoretical speed, without a power or terrain model.
Which wheel size should I use?
Use the circumference requested by the form, preferably measured for the wheel. It is not a bike-fit recommendation.
Can I compare several sprockets?
Yes, within the stated bounds. The matrix compares the entered front and rear combinations at the supplied cadence.