Gear ratio
Calculate Gear ratio instantly with the exact formula and a worked example. Free online calculator — no signup.
Gear ratio
Front (teeth)
Rear (teeth)
Gear ratio
3.5714
More about: Gear ratio
What it calculates
The “Gear ratio” calculator computes Gear ratio from 2 parameters: front (teeth), rear (teeth).
A study aid and exam-prep helper.
Example calculation
With parameters Front (teeth) = 50, Rear (teeth) = 14 the result is 3.57.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.