Helical Spring Axial Deflection Calculator

Calculate the axial deflection $δ$ using: $δ = \frac{8 F D^{3} n}{G d^{4}}$

* Ensure that the force $F$ is in newtons (N), the mean coil diameter $D$ and wire diameter $d$ are in millimeters (mm), the shear modulus $G$ is in N/m², and the number of active coils $n$ is unitless.

Step 1: Enter Parameters

Force,

F

(N):

e.g., 100 N

Mean Coil Diameter,

D

(mm):

e.g., 50 mm

Number of Active Coils,

n

e.g., 10 coils

Shear Modulus,

G

(N/m²):

e.g., 80 GPa = 80000000000 N/m²

Wire Diameter,

d

(mm):

e.g., 5 mm

Step 1: Enter Parameters

Calculated Axial Deflection