The Home Utility Calculator estimates a monthly utility bill from electricity, natural gas, water, and fixed service charges. It is useful for household budgeting, comparing usage scenarios, or understanding which utility component contributes most to the total.
Each variable utility is calculated from consumption multiplied by its unit rate. Taxes, tiered pricing, demand charges, and seasonal surcharges are not modeled separately, so they should be included in the fixed-charge field or reflected in the rates when appropriate.
1. Enter electricity use and rate
Use monthly kilowatt-hours and the price per kilowatt-hour from the bill.
2. Enter gas use and rate
Use therms or another consistent unit only if the entered rate matches that unit.
3. Enter water use
Use gallons and the charge per 1,000 gallons.
4. Add fixed charges
Include base fees, service charges, taxes, or other amounts not captured by usage rates.
5. Review the breakdown
Compare the component costs with the estimated total bill.
The main result estimates the combined monthly cost of the entered utilities.
Use rates from the same billing period as consumption, especially when seasonal or tiered rates apply.
They are usually listed on the utility bill near the usage details or rate schedule.
Calculate an effective average rate by dividing the usage-based electricity charges by total kWh, or estimate each tier separately outside this tool.
Only after converting the usage or adjusting the rate so both values use the same unit basis.
Only if you add them to fixed charges or incorporate them into the effective rates.
Billing periods, minimum charges, tiers, taxes, fuel adjustments, and meter timing can create differences.