Enter the total RPM and radius into the calculator to determine the g-force acting on a rotating object.

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## G Force Formula

The following equation is used to calculate the g-force of a rotating object or body.

G = .001118 * R * RPM^2

- Where G is the G-Force
- R is the radius of the rotation (meters)
- RPM is the rotations per minute

To calculate a g-force, square the rotations per minute, multiply the result by .001118 times the radius.

## G Force Definition

G force is defined as the total force felt on a rotating object due to angular acceleration. The term G force is used to compare this force to the force of gravity. i.e 2 Gs is two times the force of gravity.

## G Force Example

How to calculate G Force?

**First, determine the radius of rotation.**Measure the radius of rotation of the object.

**Next, determine the RPM.**Calculate or measure the total number of rotations per minute.

**Finally, calculate the G Force.**Calculate the G Force using the equation above.

## FAQ

**What is G Force?**

G force, in the case of the above calculator, is a relative force acting on a rotating object.

**Why is g force relative?**

G force is relative because it’s a force compared to the force of gravity of Earth. For example, 2G’s of g-force is equal to twice the gravitational force of Earth.