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Health, Fitness & Sports

Bicycle Gear Calculator.

Training inputs and results stay in this browser. Calculate gear inches, development and speed from chainring, sprocket, wheel and cadence. Uses local formulas and independent verification.

Use Bicycle Gear Calculator

Private in this browser. Sports inputs and results stay in this browser.

Tool options
Preparing the local tool…

How it works

  1. 01

    Enter time, distance or equipment values in the labeled fields.

  2. 02

    Run the bounded local estimate.

  3. 03

    Review units, assumptions and rounding.

Frequently asked questions

Does this predict actual performance?

No. It applies ideal arithmetic to entered values and cannot predict terrain, fatigue or individual performance.

Does Bicycle Gear Calculator upload my data?

Bicycle Gear Calculator runs locally in your browser. Sports inputs and results stay in this browser.

What output does Bicycle Gear Calculator create?

Bicycle Gear Calculator creates Json output after the result passes its local verification checks.

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