Free online spring calculators from Zigoal. Choose your spring type, enter the dimensions and material, and get rate, load and stress estimates instantly, with no sign-up.
Choose a Spring Calculator
Torsion Springs
- Spring rate per degree and per 360°
- Torque at any deflection angle
- Leg tip force
- Bending stress with a stress rating
Compression Springs
The compression spring calculator is being built and will be added here.
Extension Springs
- Spring rate and initial tension
- Load and length at any extension
- Body and hook stress with a stress rating
- Maximum load and extension
How to Use a Zigoal Spring Calculator
Choose a spring calculator
Pick your spring type above, then type in the wire diameter, coil diameter, active coils and load condition, and choose a material.
Check the results
Read the spring rate and load, then use the stress rating to see whether the design suits static loads only or repeated cycling.
Send us the numbers
Share your specs, drawing or sample with Zigoal. Our engineers review the design for manufacturability and send you a quote.
Need a Custom Spring Made to Your Specs?
Zigoal is a custom spring manufacturer in China. Send us the specs from the spring calculator, a drawing or a sample, and we make compression, extension and torsion springs to order, from prototype to production.
