Leaf Spring Calculator

Calculate deflection, stress, and spring rate for single and multi-leaf springs used in vehicle suspension.

Load applied at the center of the spring.
N
Distance between spring eyes (free length).
mm
Width of each leaf.
mm
Thickness of each leaf.
mm
Total number of leaves in the spring pack.
Spring steel: 207 GPa.
GPa

Results

Deflection-mm
Max Bending Stress-MPa
Spring Rate-N/mm
Strain Energy-J
References: SAE Spring Design Manual; Shigley's — Springs