How it works
Use hydraulic flow power with the units stated beside the fields. This form solves for pressure magnitude; enter the known quantities in Power magnitude, Volumetric flow rate.
Inputs and units
| Input | Example value | What to enter |
|---|---|---|
| Power magnitude | 450 W | Formula symbol: P. Required unit: W. Must be greater than zero. |
| Volumetric flow rate | 0.015 m³/s | Formula symbol: Qᵥ. Required unit: m³/s. Must be greater than zero. |
Worked example
Show example inputs and results
This example is generated by the same calculation engine using the starting values in the form. Your own inputs produce your own result.
- Power magnitude
- 450 W
- Volumetric flow rate
- 0.015 m³/s
Complete example results
- Pressure magnitude
- 30,000 Pa
Reading the result
The result solves for pressure magnitude from the entered quantities. Check the result unit and the formula conditions before using it.
Questions and answers
Can I use the example values for my own calculation?
The example values illustrate the calculation. Replace every input with your own information, especially dates, rates and the selected operation.
When can I use the pressure magnitude result?
This model uses positive magnitudes. Pressure is the difference across the flow. Result is power transferred to the fluid; pump and motor efficiency are not included.
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method sources: openstax.org