๐ฌ Science
Friction Calculator
Friction force is the coefficient of friction multiplied by the normal force, and on a slope the normal force is reduced by the cosine of the angle. That is why a block on a steep ramp slides even though the same block sits still on the flat.
How it works
Mass of the object
Coefficient of friction
Surface angle
Applied force
Gravity
Weight
Normal force
Maximum friction force
Force needed to move it
Net force
Acceleration
Will it move
Frequently asked questions
How do I use the Friction Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.