Cycling gear calculator

Compare gear ratios, development and speed from cadence and wheel size. Free, simple, and right here in your browser.

Preparing your tool…
A little possibility, waiting.Your result will appear here.
A useful little guide

How to use cycling gear calculator

Compare gear ratios, development and speed from cadence and wheel size. This browser tool shows the inputs, assumptions and resulting output so you can use it for a specific everyday task.

  1. Enter your own values or choose a supported file.
  2. Adjust the options and run the tool.
  3. Review the result, then copy, export or save it when available.
A real use case

Try this next

Use a 50-tooth chainring, 17-tooth sprocket, 2,100 mm circumference and 80 rpm cadence.

A detail to keep in mind

Speed assumes the entered rolling circumference and no wheel slip. Real tire size and riding conditions affect the result.

Questions, answered.

Is cycling gear calculator free to use?

Yes. This tool is part of Nepocore’s free browser toolkit. There is no paid tier, file-download gate or application account required.

What should I check before using the result?

Speed assumes the entered rolling circumference and no wheel slip. Real tire size and riding conditions affect the result.

Does this tool upload my files or text?

The tool processes its input in your browser. File contents and text are not sent to a processing server. See the privacy page for local storage and hosting details.

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