Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Spring Rate Calculator
Compute the spring rate (stiffness) of a helical compression spring from its wire and coil geometry. Use this during spring selection or custom spring design to match a required force-deflection characteristic.
Fill in the required fields to see your result.
Mechanical
Torque Calculator
Compute the effective torque produced by a force applied at a given distance and angle from a pivot, accounting for system efficiency. Use it for wrench sizing, lever design, and mechanical system analysis.
Fill in the required fields to see your result.
Key differences
| Spring Rate Calculator | Torque Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 4 |
| Result | Spring Rate (N/mm) | Torque (lb-in) |
| What it does | Compute the spring rate (stiffness) of a helical compression spring from its wire and coil geometry. Use this during spring selection or custom spring design to match a required force-deflection characteristic. | Compute the effective torque produced by a force applied at a given distance and angle from a pivot, accounting for system efficiency. Use it for wrench sizing, lever design, and mechanical system analysis. |