Calculate static and kinetic friction forces between surfaces using f = μN. Determine normal force, coefficient of friction, and net force on both flat and inclined surfaces.
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Leave blank to calculate from mass
Used to calculate normal force on flat surface
Dimensionless (typical range: 0.01–1.0)
Only for inclined plane mode
How this calculator works
Friction force equals the coefficient of friction multiplied by the normal force. Static friction prevents motion and can vary up to a maximum, while kinetic friction acts during sliding.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
