Coefficient of Friction Calculator

Normal Force (N):
Force Due to Friction (N):

Coefficient of Friction:

Coefficient of Friction Calculator

The Coefficient of Friction Calculator is a tool used to calculate the coefficient of friction between two surfaces. The coefficient of friction represents the amount of resistance encountered when one surface slides or rolls over another.


The formula for calculating the coefficient of friction depends on the specific situation and the available data. However, a common formula used is:

Coefficient of Friction = Frictional Force / Normal Force


Suppose a box weighing 50 N is placed on a horizontal surface, and a force of 20 N is required to slide the box. The normal force acting on the box is equal to its weight, which is 50 N.

Coefficient of Friction = 20 N / 50 N = 0.4

In this example, the coefficient of friction is 0.4, indicating a moderate level of friction between the surfaces.

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