Coefficient of Friction Calculator

Calculate the coefficient of friction between surfaces

Friction Force (N):

Normal Force (N):

Mass (kg):

Gravity (m/s²):

Incline Angle (degrees) - Optional:

Coefficient of Friction: mu = F_friction / F_normal

Normal Force (flat): N = m * g

Normal Force (incline): N = m * g * cos(theta)

Static coefficient at angle of repose: mu_s = tan(theta)

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: University Physics

by Young & Freedman

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.