Skip to content
Battery Calculator
Log in Calculators

Electricity Bill Estimator

Monthly and annual bill from tiered rates, with the tier split, the all-in effective rate, and the marginal rate on the next kWh.

Inputs

Usage and tariff

The kWh line on your bill, or a 12-month average.

All-in cents per kWh in the first tier. US residential averaged about 16-17 cents in 2023-2024, with wide state variation.

Usage billed at the tier 1 rate before the higher tier applies. Set equal to usage for a single flat rate.

Rate above the allowance. Set equal to the tier 1 rate if your plan is flat.

Customer or meter charge that applies regardless of usage.

Result

Annual bill
$2,226
Energy portion
$175.48
Monthly bill
$185.48
Usage per day
29.2 kWh
All-in effective rate
21.15 cents/kWh
Rate on the next kWh
24.00 cents/kWh
Usage billed in tier 2
377 kWh

What to check

  • The kWh line from your own bill, or a twelve-month average rather than one extreme month.
  • Tier thresholds and rates from the tariff sheet: the threshold is per month and often seasonal.
  • Fixed charges, minimum bills, and taxes, which the energy rate alone does not capture.
  • Whether your plan also has time-of-use windows; those belong in the TOU comparison.

Keep going

Related calculators and guides

Related calculators

Calculator

Average Bill Benchmark

Your bill against the US average on total, usage, and rate, with the annual gap.

  • Your monthly bill
  • US average bill
  • Difference per month
Open calculator

Calculator

Time-of-Use Rate Plan Comparison

Compare a peak/shoulder/off-peak plan against a flat rate including both fixed charges, and find the peak share where they break...

  • Flat plan bill
  • Time-of-use bill
  • Monthly savings with TOU
Open calculator

Related guides

Bill estimate from a two-tier energy rate plus a fixed charge. It does not model seasonal tier changes, time-of-use windows, demand charges, taxes, or riders, so it will differ from the utility bill. Use the tariff sheet for any decision about a rate plan change.

Saved calculations

Keep the assumptions with the result.

Save this calculation to return to the inputs, result, and report anytime.

Sign in to save Create account

Sign in or create an account to save this calculation.