Chainring Diameter Calculator

Calculate Chainring Diameter (D)



Formula

The formula to calculate the Chainring Diameter (D) is:

\[ D = \frac{N \times P}{\pi} \]

Where:

What is Chainring Diameter?

Chainring diameter is a measurement that indicates the size of the chainring on a bicycle or similar machinery. It is an important dimension for determining the gear ratio and the mechanical advantage provided by the chainring in a gear system. The diameter is directly related to the number of teeth and the pitch of the chain used.

Example Calculation

Let's assume the following values:

Using the formula to calculate the Chainring Diameter:

\[ D = \frac{50 \times 0.5}{\pi} \approx 7.96 \text{ inches} \]

The Chainring Diameter is approximately 7.96 inches.