Enter flow, pressure, density, head, and efficiency values. Get power, losses, and converted outputs instantly. Download reports and inspect performance curves with clear graphs.
| Case | Method | Flow | Pressure / Head | Efficiency | Hydraulic Power | Input Power |
|---|---|---|---|---|---|---|
| 1 | Pressure | 120 L/min | 150 bar | 85% / 92% | 30.00 kW | 38.36 kW |
| 2 | Pressure | 60 L/min | 80 bar | 78% / 90% | 8.00 kW | 11.40 kW |
| 3 | Head | 45 m³/h | 42 m head | 80% / 93% | 5.14 kW | 6.91 kW |
| 4 | Head | 75 m³/h | 28 m head | 82% / 94% | 5.71 kW | 7.40 kW |
| 5 | Pressure | 200 gpm | 180 psi | 88% / 95% | 15.65 kW | 18.73 kW |
Use the pressure method when pressure differential is already known. Use the head method when system head is easier to measure. Both approaches describe the same hydraulic output energy transfer under different input formats.
Hydraulic power is the useful power transferred by a moving fluid under pressure or head. It shows how much energy per second the fluid delivers to a hydraulic system or process.
Use pressure when you directly know the pressure difference across the system or pump. Use head when the system is described by elevation, static head, or total dynamic head measurements.
Density is required for head-based calculations and for converting pressure to equivalent head. Different fluids transfer energy differently, so density affects the relationship between pressure and head.
Hydraulic power is the useful output carried by the fluid. Shaft power is the mechanical power required before hydraulic losses are considered, so it is always greater when efficiency is below 100%.
The motor or drive is not perfectly efficient. Electrical input power includes the extra energy needed to overcome motor, drive, and related conversion losses before mechanical shaft power reaches the pump.
Yes. It works well for water pumping, hydraulic machinery, industrial fluid systems, and many engineering checks. Just enter realistic density, efficiency, and operating values for your application.
It supports multiple flow units, pressure units, and head units. Results are also shown in common engineering forms such as kW, horsepower, bar, psi, meters, and feet.
The cost estimate is useful for planning and comparison. Actual cost can differ because of variable loading, duty cycles, changing tariffs, temperature effects, maintenance condition, and part-load motor performance.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.