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Both calculators run independently — change the inputs on either side to compare results.
Mechanical
Pump Power Calculator
Calculate the shaft power required to drive a pump given flow rate, total head, efficiency, and fluid type. Ideal for engineers sizing pumps or estimating energy consumption in water supply, HVAC, and process systems.
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
| Pump Power Calculator | Shaft Power Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Inputs required | 4 | 2 |
| Result | Required Power (kW) | Power (W) |
| What it does | Calculate the shaft power required to drive a pump given flow rate, total head, efficiency, and fluid type. Ideal for engineers sizing pumps or estimating energy consumption in water supply, HVAC, and process systems. | 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. |