Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Civil
Pipe Flow Velocity Calculator
Calculates the average flow velocity of fluid in a circular pipe given a volumetric flow rate and pipe diameter. Use it when sizing pumps, checking design velocities, or troubleshooting pipe systems.
Fill in the required fields to see your result.
Civil
Pipe Flow Rate Calculator
Determine the flow rate of water through a pipe using the Hazen-Williams equation. Use this when designing or analyzing water distribution systems, irrigation lines, or municipal supply networks.
Fill in the required fields to see your result.
Key differences
| Pipe Flow Velocity Calculator | Pipe Flow Rate Calculator | |
|---|---|---|
| Category | Civil | Civil |
| Inputs required | 2 | 4 |
| Result | Flow Velocity (m/s) | Flow Rate (gpm) |
| What it does | Calculates the average flow velocity of fluid in a circular pipe given a volumetric flow rate and pipe diameter. Use it when sizing pumps, checking design velocities, or troubleshooting pipe systems. | Determine the flow rate of water through a pipe using the Hazen-Williams equation. Use this when designing or analyzing water distribution systems, irrigation lines, or municipal supply networks. |