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Both calculators run independently — change the inputs on either side to compare results.
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.
Fluid Mechanics
Pump Affinity Laws Calculator
Predict how a centrifugal pump's flow rate, head, and power change when its speed is varied using the pump affinity laws. Essential for engineers evaluating variable-speed drives or re-rating existing pumps for new duty points.
Fill in the required fields to see your result.
Key differences
| Pipe Friction Loss Calculator | Pump Affinity Laws Calculator | |
|---|---|---|
| Category | Fluid Mechanics | Fluid Mechanics |
| Inputs required | 4 | 5 |
| Result | Pressure Loss (Pa) | New Performance (Combined) |
| What it does | 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. | Predict how a centrifugal pump's flow rate, head, and power change when its speed is varied using the pump affinity laws. Essential for engineers evaluating variable-speed drives or re-rating existing pumps for new duty points. |