Home Back

RPM Rocking Speed Effect

RPM Formula:

\[ RPM = \frac{S \times C}{D} \]

mph
inches

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is RPM Rocking Speed Effect?

Definition: This calculator determines the revolutions per minute (RPM) based on speed, a constant factor, and diameter.

Purpose: It helps in mechanical and automotive applications to understand the relationship between linear speed and rotational speed.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ RPM = \frac{S \times C}{D} \]

Where:

Explanation: The speed multiplied by the constant (which converts units) and divided by the diameter gives the rotational speed.

3. Importance of RPM Calculation

Details: Understanding RPM is crucial for proper gear selection, engine performance optimization, and mechanical system design.

4. Using the Calculator

Tips: Enter the speed in mph, the constant (default 336), and the diameter in inches. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the constant 336?
A: The constant 336 comes from unit conversion (5280 ft/mile × 12 in/ft ÷ 60 min/hour).

Q2: What diameter should I use?
A: Use the effective rolling diameter of your wheel or rotating component.

Q3: Can I use this for different units?
A: Yes, but you'll need to adjust the constant factor accordingly for different unit systems.

Q4: How accurate is this calculation?
A: It provides theoretical RPM. Actual RPM may vary due to factors like tire slip or load.

Q5: What applications use this calculation?
A: Automotive tuning, conveyor systems, and any rotating machinery where speed-RPM relationship matters.

RPM Rocking Speed Effect© - All Rights Reserved 2025