kWh cost calculator

How much does a kWh cost?

Pick a usage amount, convert cents per kWh into dollars, and then add fixed fees only when you want a full monthly bill.

Fast answer

kWh cost is the cleanest way to sanity-check a device, bill, or rate plan.

Use fixed fees of $0 for pure usage cost, then add customer charges only when you want the full monthly bill view. This keeps device-level searches and monthly-bill searches separated.

kWh formulaEnergy-only optionBill-ready option Reviewed: May 2026

kWh cost

Common kWh cost searches

Fast examples for the exact usage amounts people search when checking a bill or device cost.

1 kWh cost$0 at 18.35 cents/kWh before fixed fees.51 kWh cost$9 at 18.35 cents/kWh before fixed fees.97 kWh cost$18 at 18.35 cents/kWh before fixed fees.222 kWh cost$41 at 18.35 cents/kWh before fixed fees.245 kWh cost$45 at 18.35 cents/kWh before fixed fees.500 kWh cost$92 at 18.35 cents/kWh before fixed fees.900 kWh cost$165 at 18.35 cents/kWh before fixed fees.1,200 kWh cost$220 at 18.35 cents/kWh before fixed fees.

Common questions

How do I convert cents per kWh into dollars?

Multiply the kWh amount by the cents per kWh, then divide by 100. For example, 100 kWh at 20 cents per kWh costs $20 before fixed charges.

Is kWh cost the same as my full electric bill?

No. Pure kWh cost is only the usage charge. A full electric bill can include fixed customer charges, taxes, delivery riders, demand charges, and other utility fees.

Why does WattNomic include fixed fees?

Fixed fees make monthly bills more realistic. Use $0 when you only want energy-only kWh cost, or add your monthly customer charge for a fuller bill estimate.

State price range

The current launch dataset ranges from 11.64 cents/kWh in North Dakota to 43.00 cents/kWh in Hawaii. Your utility plan may differ.

High-signal next pages

California average electric bill Is your electric bill normal? Electricity rates by state