Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Plumbing
Grease Trap Size Calculator
Determines the required grease trap (interceptor) capacity in gallons based on the number of connected fixtures, their individual flow rates, and the required grease retention time. Used by plumbers and kitchen designers for code-compliant commercial kitchen installations.
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
| Grease Trap Size Calculator | Drain Pipe Slope Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 3 | 2 |
| Result | Required Capacity (gallons) | Total Fall Required (inches) |
| What it does | Determines the required grease trap (interceptor) capacity in gallons based on the number of connected fixtures, their individual flow rates, and the required grease retention time. Used by plumbers and kitchen designers for code-compliant commercial kitchen installations. | 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. |