Free spring calculator

Simply fill in the details below about your spring, pressing Enter after each value to move to the next box.

Spring geometry inputs

Type of wire:
Ends of spring:
Wire diameter:
mm
Outside diameter:
mm
Total number of coils:
Free length:
mm

First working length:
mm
Second working length:
mm

Calculated data

Spring rate:
 
N/mm
Solid length:
 
mm
Load at solid:
 
N

First working load:
 
N
Second working load:
 
N

This free spring calculator is provided to give basic information. If you want access to the most advanced calculations available, take a look at IST`s online Spring Calculator, or for more advanced users Spring Calculator Professional.