RPM to G Force Calculator

When working with centrifuges, laboratory equipment, or rotational speeds in physics, you often need to convert RPM (Revolutions Per Minute) to G-Force (Relative Centrifugal Force, RCF). Our RPM to G Force Calculator helps users easily make these conversions without manual calculations. Whether you're working in a lab, industrial setting, or scientific research, understanding the relationship between RPM and G-Force is essential for accurate results.

What is RPM and G-Force?

RPM (Revolutions Per Minute) refers to how many times a rotating object completes a full turn in one minute. G-Force (RCF - Relative Centrifugal Force) measures the acceleration exerted on an object due to rotation, expressed in multiples of Earth’s gravitational force (g).

How to Convert RPM to G-Force

The formula to convert RPM to G-Force is:

RCF (g) = 1.118 × 10⁻⁵ × r × (RPM)²

Where:

• RCF (g) = Relative Centrifugal Force (G-Force)
• r = Radius of rotation in centimeters (cm)
• RPM = Revolutions per minute

How to Use the RPM to G-Force Calculator

1. Enter the RPM value – Input the speed of rotation in revolutions per minute.
2. Enter the rotor radius (cm) – Specify the radius of rotation from the center to the outer edge.
3. Click Calculate – Instantly get the G-Force (RCF) value.

Convert G-Force to RPM

To find RPM from G-Force, use this formula:

RPM = (1.118 × 10⁻⁵ × r) / RCF

For example, to find RPM for 5000 g at a radius of 10 cm:

RPM = (1.118 × 10⁻⁵ × 10) / 5000

RPM = 0.0001118 / 5000

RPM ≈ 6692

Final Verdict

Using an RPM to G-Force calculator simplifies the process of converting rotational speeds into Relative Centrifugal Force (RCF), making it easier for researchers, lab technicians, and industrial users to ensure precise calculations.

FAQs

How do you convert RPM to G-Force?

Use the formula RCF (g) = 1.118 × 10⁻⁵ × r × (RPM)², where r is the rotor radius in cm.

How many g is 3500 RPM?

Assuming a 10 cm radius, 3500 RPM equals approximately 13.72 g.

How much is 10,000 g in RPM?

At a 10 cm radius, 10,000 g converts to approximately 9450 RPM.

Are g and RPM the same?

No, RPM measures rotational speed, while G-Force (RCF) measures centrifugal acceleration.