Practical guide

How to Estimate an Electricity Bill from kWh

Turn monthly kWh usage and your electricity rate into a quick bill estimate while accounting for fixed fees.

Updated September 10, 2026 · Free calculator · Instant result · No signup
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Quick answer

A basic electricity estimate is monthly kWh × your energy rate, plus fixed monthly charges. It is useful for quick comparisons, but tiered rates, delivery charges, taxes, demand charges and time-of-use pricing can make the real bill more complicated.

How to work it out

  1. Find monthly kWh from a recent bill or meter estimate.
  2. Use the effective $/kWh rate that applies to the energy portion you want to model.
  3. Add fixed monthly fees.
  4. If your tariff is tiered or time-based, calculate those portions separately.
  5. Compare the estimate with a recent bill to calibrate your assumptions.

Example

1,000 kWh at $0.17/kWh is $170 in energy charges. Add $20 of fixed fees and the simplified estimate becomes $190 before any other utility-specific charges.

What can change the answer

For plan shopping, compare the actual tariff structure rather than a single advertised cents-per-kWh number.

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