Compression Spring Rate Calculator
Calculate spring constant (rate), maximum stress, and solid height for cylindrical compression springs.
k = G×d⁴ / (8×D³×Na) N/mm
τ_max = Kw × 8×F×D / (π×d³) MPa
C = D/d (Spring Index, ideal 4-12)
τ_max = Kw × 8×F×D / (π×d³) MPa
C = D/d (Spring Index, ideal 4-12)
Music wire=79.3, SS302=69, Inconel=77.2