Spring Rate Calculation
If you want to have your own springs wound, here is some information for you...
- The formula is:
d = wire diameter D = spring diameter N = number of active coils G = Shear modulus of material, For steel; G = 79.3 GPa
Take your tape measure and check the diameter of the coils and you've got everything you need.
The EASY way, would be to plug in the data here.
A bit more exacting formula can be figured out from the information on this page