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Both calculators run independently — change the inputs on either side to compare results.
Fluid Mechanics
Pump Affinity Laws Calculator
Predict how a centrifugal pump's flow, head, and power change when its speed or impeller size is altered, using the pump affinity laws. Ideal for engineers optimising pump operation or evaluating variable-speed drives.
Fill in the required fields to see your result.
Fluid Mechanics
Pipe Friction Loss Calculator
Estimate the pressure head lost to friction in any pipe system using the Darcy-Weisbach equation. Use it when designing water supply lines, irrigation networks, or HVAC piping to ensure adequate flow pressure.
Fill in the required fields to see your result.
Key differences
| Pump Affinity Laws Calculator | Pipe Friction Loss Calculator | |
|---|---|---|
| Category | Fluid Mechanics | Fluid Mechanics |
| Inputs required | 6 | 4 |
| Result | New Value (variable) | Pressure Loss (Pa) |
| What it does | Predict how a centrifugal pump's flow, head, and power change when its speed or impeller size is altered, using the pump affinity laws. Ideal for engineers optimising pump operation or evaluating variable-speed drives. | Estimate the pressure head lost to friction in any pipe system using the Darcy-Weisbach equation. Use it when designing water supply lines, irrigation networks, or HVAC piping to ensure adequate flow pressure. |