Compare calculators
Both calculators run independently β 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
Drain Pipe Slope Calculator
Calculates the required vertical drop for a drain pipe based on its length and diameter to ensure proper self-cleaning flow. Use it when roughing in bathroom, kitchen, or floor drains to meet IPC and UPC plumbing code requirements.
Fill in the required fields to see your result.
Key differences
| Faucet Flow Rate Calculator | Drain Pipe Slope Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 2 | 2 |
| Result | Flow Rate (GPM) | Total Fall Required (inches) |
| 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 the required vertical drop for a drain pipe based on its length and diameter to ensure proper self-cleaning flow. Use it when roughing in bathroom, kitchen, or floor drains to meet IPC and UPC plumbing code requirements. |