Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Plumbing
Septic Tank Size Calculator
Estimates the minimum septic tank capacity needed for a household based on bedroom count and daily water usage. Use it when planning a new septic installation or verifying compliance with local health codes.
Fill in the required fields to see your result.
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.
Key differences
| Septic Tank Size Calculator | Grease Trap Size Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 2 | 3 |
| Result | Required Tank Size (gallons) | Required Capacity (gallons) |
| What it does | Estimates the minimum septic tank capacity needed for a household based on bedroom count and daily water usage. Use it when planning a new septic installation or verifying compliance with local health codes. | 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. |