Friction Force Calculator

MECHANICAL

Static · Kinetic · Coefficient · Normal force · F = μ·N

μ N F

Coefficient of friction (μ)

Normal force (N)

Friction type

—

                            Friction force (F)
                            —
                            N
                        

Friction force (lbf) — lbf

Friction type — —

F = μ × N

Friction increases linearly with normal force

Friction opposes motion or tendency

Friction force (F)

Normal force (N)

                            Coefficient (μ)
                            —
                            —
                        

Friction angle (φ) — °

Interpretation — —

μ = F / N

Typical coefficients for reference

Friction force (F)

Coefficient (μ)

Mass (optional, for weight)

                            Normal force (N)
                            —
                            N
                        

Mass from normal force — kg

Required mass (if horizontal) — kg

N = F / μ

Normal force decreases with μ (constant F)