Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Plumbing
Faucet Flow Rate Calculator
Calculates a faucet's flow rate in gallons per minute (GPM) by timing how long it takes to fill a known container. Use it to audit water consumption, compare fixtures, or check compliance with low-flow standards.
Fill in the required fields to see your result.
Plumbing
Pipe Flow Velocity Calculator
Calculates water velocity (in ft/s) inside a pipe from flow rate and pipe diameter, then checks whether it falls within code-acceptable limits for the selected application. Use it to avoid erosion, noise, or insufficient flow.
Fill in the required fields to see your result.
Key differences
| Faucet Flow Rate Calculator | Pipe Flow Velocity Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 2 | 2 |
| Result | Flow Rate (GPM) | Flow Velocity (ft/s) |
| What it does | Calculates a faucet's flow rate in gallons per minute (GPM) by timing how long it takes to fill a known container. Use it to audit water consumption, compare fixtures, or check compliance with low-flow standards. | Calculates water velocity (in ft/s) inside a pipe from flow rate and pipe diameter, then checks whether it falls within code-acceptable limits for the selected application. Use it to avoid erosion, noise, or insufficient flow. |