Compression Spring Calculator

Easily calculate key spring parameters and performance characteristics for your custom compression spring design. This tool helps you determine force, stress, solid height, and other essential spring attributes based on your inputs.

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To begin, enter your known spring design specifications such as wire diameter, outside diameter, and free length. Select the material and end type, and the calculator will instantly provide critical performance metrics to help you validate or refine your design.

Compression Spring

Input Parameters

Must be a positive number

Must be a positive number

Must be a positive number

Must be a positive number

Calculated Outputs

Calculated Diameters

Mean Diameter
0 in
Inner Diameter
0 in

Basic Spring Parameters

Spring Index (C) 0
Active Coils 0
Spring Rate (K)
0 lbf/in
Solid Height
0 in

Performance at Solid Height

Deflection to Solid
0 in
Force at Solid Height
0 lbf
Wahl Correction Factor 0
Stress at Solid Height
0 ksi
Factor of Safety 0

Other Geometric Properties

Pitch
0 in
Helix Angle
0 degrees

This calculator provides estimates based on theoretical spring formulas and standard assumptions. Results are for preliminary design purposes only and should be verified by a qualified engineer for any critical applications. The calculator does not account for all factors affecting spring performance, including material variations, manufacturing tolerances, environmental conditions, or fatigue life.

Use at your own risk. This tool is not intended for applications where spring failure could result in injury, property damage, or system failure. Always consult appropriate engineering standards and conduct proper testing for your specific application.

Request a Custom Quote

Submit your quote request using the inputs and results from the spring calculator which are shown below. Our experienced engineering team will review your specifications and provide a detailed, personalized quotation.

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Additional Comments for Spring Design

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If you have another file type, you can submit a quote request via email by visiting our Contact Us page.

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Compression Spring Calculator Summary

Input Parameters

Unit of Measure: Imperial
Outside Diameter (in.): 0 in
Wire Diameter (in.): 0 in
Free Length (in.): 0 in
Total Coils: 0
Material Type: Music Wire (ASTM A228)
End Type: Squared & Ground

Calculated Outputs

Mean Diameter: 0 in
Inner Diameter: 0 in
Spring Index (C): 0
Active Coils: 0
Spring Rate (k): 0 lbf/in
Solid Height: 0 in
Deflection to Solid: 0 in
Force at Solid Height: 0 lbf
Wahl Correction Factor: 0
Stress at Solid Height: 0 ksi
Factor of Safety: 0
Pitch: 0 in
Helix Angle: 0 degrees