Choose Your Calculator
Three tools, one workflow: enter your known specifications, review the calculated performance, then send the design to our engineers.
Compression Spring Calculator
For springs that resist an axial load. Enter wire diameter, outside diameter, free length and total coils.
Calculates
- Spring rate, index and active coils
- Solid height and deflection to solid
- Force and stress at solid height
- Pitch, helix angle, mean and inside diameter
Extension Spring Calculator
For springs that resist a pulling load. Enter wire diameter, outside diameter, body length, coil count and end type
Will calculate
- Spring rate and initial tension
- Free length inside hooks
- Force and stress at extended length
- Maximum safe travel
Torsion Spring Calculator
For springs that resist rotation. Enter wire diameter, outside diameter, leg lengths, coil count and wind direction
Will calculate
- Rate per degree of deflection
- Torque at working angle
- Bending stress
- Body length and diameter change under load
From calculation to quote
Submit your quote request using the inputs and results. from the spring calculator. Our experienced engineering team will review your specifications and provide a detailed, personalized quotation.
25,000+ stock springs
If a stock part fits your design, you can order it today from the Lee Spring catalog.
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Talk to an engineer about materials, finishes, tolerances and production volumes.