Electricity Bill Calculator

Project a monthly bill from a usage total and your utility's rate structure.

This projects a bill from a usage total you already have. Don't have that number yet? Build it up appliance by appliance with the Electric Bill Estimator.

This tool provides a planning estimate based on the assumptions shown below the results — it is not a quote, and actual costs and savings will vary by installer, local rates, and your specific home.

Your state

Sets both rate tiers below to your state's average (EIA, April 2026) — edit either if you know your actual utility rate.

Monthly usage

kWh

Fixed monthly customer charge

Shown on your bill as a base/customer/facilities charge.

Tier 1 rate

Tier 1 threshold

kWh

Tier 2 rate (usage above threshold)

Set equal to Tier 1 rate if your utility bills a flat rate rather than tiered pricing.

Enter your usage and rate structure to project a monthly bill.

How this calculator works

Usage up to your Tier 1 threshold is billed at the Tier 1 rate; anything above it is billed at the Tier 2 rate. Set both rates equal for a simple flat-rate bill. Total bill = volumetric charge + fixed monthly customer charge. This projects from a usage total you already know — for a bottom-up estimate built from individual appliances, see our Electric Bill Estimator.

Source: EIA Electric Power Monthly; typical U.S. residential rate design, last updated 2026-07-01.