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
Water Heater Size Calculator
Estimates the recommended water heater tank capacity in gallons based on household size and hot water usage habits. Use it when purchasing a new water heater or upgrading to match a growing household's demand.
Fill in the required fields to see your result.
Key differences
| Grease Trap Size Calculator | Water Heater Size Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 3 | 2 |
| Result | Required Capacity (gallons) | Recommended Capacity (gallons) |
| 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. | Estimates the recommended water heater tank capacity in gallons based on household size and hot water usage habits. Use it when purchasing a new water heater or upgrading to match a growing household's demand. |