Design compression, extension, and torsion helical springs: calculate wire diameter, coils, rate, stress, and safety factor instantly.
Featured: Compression, Extension, Torsion • Wahl Factor • Stress Check
k = Gd⁴/(8D³N)τ = 8FDK/(πd³)
Similar rate, initial tension added
k = Ed⁴/(10.8D³N)τ = 32MT/(πd³)
Enter parameters and click Calculate
Most common, closed ends.
Initial tension, hooks.
Torque storage, arms.