PORT CALCULATOR Gear Inches Calculator Calculate your gear inches for optimal cycling performance.
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What is the Gear Inches Calculator & How does it work?

Gear inches is a measure of the gearing on a bicycle, which indicates how far the bike travels with one pedal revolution. It’s calculated by multiplying the number of teeth on the chainring (front gear) by the diameter of the wheel in inches and dividing by the number of teeth on the sprocket (rear gear).

Understanding your gear inches helps you choose the right gearing for different terrains and riding conditions. For instance, a higher gear inch setting is suitable for flat terrain where speed is desired, while a lower gear inch is better for hills to maintain pedaling efficiency.

\text{Gear Inches} = \frac{(\text{Chainring Teeth} \times \text{Wheel Diameter in inches})}{\text{Sprocket Teeth}}
var = meaning
Chainring Teeth = number of teeth on the front gear
Sprocket Teeth = number of teeth on the rear gear
Wheel Diameter in inches = diameter of the bicycle wheel in inches
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Parameters
Chainring Teeth
Sprocket Teeth
Wheel Diameter (inches)

Results are for informational purposes only and do not constitute professional advice.