RPM to Speed Converter – The Fox Click : Free Tools and Resources

RPM to Speed Converter

Convert RPM (Revolutions Per Minute) to vehicle speed based on tire size and gear ratio.

RPM (Revolutions per Minute):
Tire Diameter (in inches):
Gear Ratio:

Enter the details to calculate speed.

The RPM to Speed Converter is a tool designed to convert the engine’s RPM (Revolutions per Minute) to the vehicle’s speed in kilometers per hour (km/h). The conversion depends on the tire diameter and the vehicle’s gear ratio.

Inputs:
- RPM: The engine RPM (Revolutions Per Minute).
- Tire Diameter: The diameter of the tires in inches.
- Gear Ratio: The vehicle’s gear ratio (the ratio between the engine RPM and the wheel RPM).
Output:
- The vehicle speed is calculated and displayed in kilometers per hour (km/h).

User Guide:

How to Use the RPM to Speed Converter:

Enter RPM:
- Input the RPM (Revolutions per Minute) of your engine into the RPM field.
Enter Tire Diameter:
- Input the tire diameter in inches (e.g., 16 inches, 18 inches).
Enter Gear Ratio:
- Input the gear ratio (typically a number like 3.5 or 4.0, representing the ratio between the engine speed and wheel speed).
Calculate Speed:
- Click the Calculate Speed button to get the speed in km/h based on the RPM, tire diameter, and gear ratio.
Download the Calculation (Optional):
- Click the Download Calculation (PDF) button to save the result as a text file for future reference.

Key Formula:

The formula used to calculate the speed is: $Ratio)×601000\text{Speed (km/h)} = \left( \frac{\text{RPM} \times \text{Tire Circumference}}{\text{Gear Ratio}} \right) \times \frac{60}{1000}$ where Tire Circumference is calculated using the formula: $meters)\text{Tire Circumference} = \pi \times \text{Tire Diameter (in meters)}$

Features:

✔ Instant Speed Calculation: Get the vehicle’s speed in km/h with just a few inputs.
✔ Flexible Inputs: Enter RPM, tire diameter (in inches), and gear ratio.
✔ Downloadable Report: Save your calculation results as a text file for later use.

This tool is perfect for automotive enthusiasts, mechanics, and engineers who need to calculate the speed of a vehicle based on RPM, tire size, and gear ratio.