Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Bolt Torque Calculator
Calculates the tightening torque required to achieve a target clamp load in a bolted joint, based on bolt diameter, material strength, and friction. Use it when assembling structural or mechanical joints to avoid under- or over-tightening.
Fill in the required fields to see your result.
Mechanical
Shaft Power Calculator
Calculates the mechanical power transmitted through a rotating shaft given its torque and rotational speed. Use this when sizing motors, gearboxes, or drive shafts in mechanical systems.
Fill in the required fields to see your result.
Key differences
| Bolt Torque Calculator | Shaft Power Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 2 |
| Result | Required Torque (N·m) | Power (W) |
| What it does | Calculates the tightening torque required to achieve a target clamp load in a bolted joint, based on bolt diameter, material strength, and friction. Use it when assembling structural or mechanical joints to avoid under- or over-tightening. | Calculates the mechanical power transmitted through a rotating shaft given its torque and rotational speed. Use this when sizing motors, gearboxes, or drive shafts in mechanical systems. |