Gear Ratio Calculator
Gear Ratio Calculator for global vehicle planning and reference.
Enter your vehicle figures
Use the units shown beside each input. Results update as you enter values.
Calculator Results
Results are estimates based on your inputs.
How the Gear Ratio Calculator Works
Gear Ratio Calculator for global vehicle planning and reference.
For safety-critical vehicle specifications, always follow the vehicle or component manufacturer's published specifications.
How to use this calculator
What to enter
Enter or select the following as requested: Input RPM (rpm); Output RPM (rpm). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The numerical result follows the operation or relationship named by the calculator and the values entered. Check the order of operations, sign, precision, and units shown, especially when combining percentages or ratios.
When to use it
Use this to calculate or verify a numerical value. Recheck the input values and rounding if the result will be used in a report, measurement, or further calculation.