US Electricity Calculator FAQs
Answers about US electric bills, cents per kWh, supply and delivery charges, taxes, meter readings and how our US calculator handles your data.
By Electricity Bill Calculator · Updated
Should I enter dollars or cents per kWh?
Enter cents per kWh in the electricity-rate field. A price of $0.16/kWh is 16 cents, so enter 16. Fixed charges and additional taxes or fees are entered in dollars for the whole billing period.
What is the difference between kW and kWh?
kW measures power at a moment in time. kWh measures energy used over time. A device drawing 1 kW for three hours uses 3 kWh. Enter consumption in kWh, not a device’s wattage or the meter’s instantaneous demand reading.
Do I include supply and delivery charges?
If both are charged per kWh and apply to the same usage, include both in the rate you enter. Put a fixed customer charge in the fixed-charges field. Do not add a charge again if it is already included in an all-in rate. Your utility’s statement determines which amounts apply.
Does the calculator add tax automatically?
No. Enter applicable taxes and fees as a dollar total. It does not assume a national tax percentage or apply UK VAT. Leave the amount at $0 if it is already included or none applies.
Can I use a tiered or time-of-use plan?
The calculator uses one rate. It does not work out separate price tiers, peak/off-peak schedules, demand charges or solar credits automatically. Use your utility’s detailed calculation for these plans. A single blended rate is only an estimate and depends on the usage mix.
Why is the utility’s amount due different?
The amount due may include a previous balance, payments, credits, a deposit or installment adjustments. Our estimate covers only the usage and charges entered for the period. Check the dates, meter number, actual versus estimated readings and charge breakdown.
Can I enter zero usage?
Yes. A home with no electricity consumption may still have fixed account charges. Equal previous and current readings are accepted. The billing period must be a whole number from 1 to 366 days.
What information is stored?
We record the calculated kWh, rates, period length, fixed charges, additional charges and derived costs, tagged US/USD. Random calculation and tab-session IDs help group corrected attempts. Raw meter readings, account numbers and names are not submitted. Your latest US usage and rates stay in tab session storage for the results page; calculating another bill clears that stored result.
Sources
Utility examples describe that utility’s service; check your own provider’s guidance.