Gear Ratio Calculator

Calculate gear ratios, output speed, and torque multiplication for gear pairs. Enter driving and driven gear teeth counts with optional input RPM and torque for complete analysis.

How to Use Gear Ratio Calculator

Enter the number of teeth on the driving and driven gears. Optionally add input RPM and torque to calculate output values. Adjust efficiency percentage for real-world estimates.

Step-by-Step Instructions

  1. Enter driving gear teeth count
  2. Enter driven gear teeth count
  3. Optionally enter input RPM and torque
  4. Click Calculate to see gear ratio and output values

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