Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Pump Power Calculator
Calculate the shaft power a centrifugal pump motor must deliver to move fluid against a given head at a specified flow rate. Use it when selecting pump motors or auditing energy consumption in piping systems.
Fill in the required fields to see your result.
Mechanical
Torque and Power Calculator
Convert between torque, rotational speed, and mechanical power for motors, engines, and drivetrain components. Use it when sizing a motor or verifying shaft power output at a given RPM and efficiency.
Fill in the required fields to see your result.
Key differences
| Pump Power Calculator | Torque and Power Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 4 |
| Result | Required Power (kW) | Result (kW) |
| What it does | Calculate the shaft power a centrifugal pump motor must deliver to move fluid against a given head at a specified flow rate. Use it when selecting pump motors or auditing energy consumption in piping systems. | Convert between torque, rotational speed, and mechanical power for motors, engines, and drivetrain components. Use it when sizing a motor or verifying shaft power output at a given RPM and efficiency. |