Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Water Usage
Water Pressure & Flow Calculator
Estimate the flow rate (GPH) available at your fixtures given pipe size, supply pressure, elevation change, and pipe length. Use this when sizing a plumbing system or diagnosing low-pressure complaints.
Fill in the required fields to see your result.
Water Usage
Hot Water Energy Cost Calculator
Estimates your monthly water heating bill based on daily hot water use, temperature rise, energy source, and heater efficiency. Useful when comparing electric vs. gas heaters or auditing home energy costs.
Fill in the required fields to see your result.
Key differences
| Water Pressure & Flow Calculator | Hot Water Energy Cost Calculator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 5 |
| Result | Flow Rate per Fixture (GPM) | Monthly Heating Cost ($) |
| What it does | Estimate the flow rate (GPH) available at your fixtures given pipe size, supply pressure, elevation change, and pipe length. Use this when sizing a plumbing system or diagnosing low-pressure complaints. | Estimates your monthly water heating bill based on daily hot water use, temperature rise, energy source, and heater efficiency. Useful when comparing electric vs. gas heaters or auditing home energy costs. |