Appliance electricity cost calculator

Turn watts and usage time into monthly kWh and cost using the selected state electricity price.

Appliance Cost Calculator
California33.61¢/kWh
shared calculation engine

Your inputs

Change only what you know. State data stays consistent across every calculator.

watts
hours

Start with the statewide EIA average, or choose a verified utility rate where available.

Advanced settings
days
Updates the result using the inputs and rate source above.
LocationCaliforniaEIA residential state average
Rate33.61¢/kWh2026-07
vs U.S. average+83.6% vs U.S.same input comparison
National rank#2 highest+2.9% YoY
Result explained

Why this number?

Calculation

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Rate used

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U.S. comparison

$32.96$27.54 more per month than the same inputs at the U.S. average.

Boundary

Estimate boundaries will appear here.

Utility context

Where a verified marginal utility/TOU price exists, you can compare the appliance at that energy price without pretending fixed charges disappeared.

One rate engine

All four core calculators use the same persisted state selection, the same EIA state record, and the same base energy-cost function. Tool-specific logic only converts your usage into kWh before the common cost step.

Source boundary

EIA state averages are for broad residential comparisons. Verified utility tariffs remain a separate layer because fixed charges, TOU windows, taxes, riders and export rules can materially change a household bill.