Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
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.
Mechanical
Shaft Torque Calculator
Determine the minimum shaft diameter needed to safely transmit a given power at a specified speed and shear stress limit. Essential for mechanical designers sizing drive shafts, motor shafts, and spindles.
Fill in the required fields to see your result.
Key differences
| Torque Calculator | Shaft Torque Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 4 |
| Result | Torque (lb-in) | Required Diameter (mm) |
| What it does | 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. | Determine the minimum shaft diameter needed to safely transmit a given power at a specified speed and shear stress limit. Essential for mechanical designers sizing drive shafts, motor shafts, and spindles. |