MT · July 2026

Montana electricity cost calculator

Average residential electricity rate: 14.99¢/kWh — 18.1% below the U.S. average and #14 from lowest to highest among the 50 states in this snapshot.

Electricity cost calculator

What does it cost to run?

Energy180.00 kWh
Cost for 30 days$26.98
Per day$0.90
Annualized$328.28

Uses the selected state's latest EIA residential average unless you enter your own utility rate. Taxes, fixed charges, tiers and time-of-use pricing are not included.

Monthly history

Montana residential rate history

Historical EIA data will appear here after the next rate-history sync. The latest snapshot calculator above remains available now.

Common examples

What typical devices cost at Montana's average rate

Space heater1,500 W · 4 h/day · 30 days$26.98
Gaming PC500 W · 6 h/day · 30 days$13.49
Window AC900 W · 8 h/day · 30 days$32.38
Refrigerator150 W · 8 h/day · 30 days$5.40
Clothes dryer3,000 W · 0.75 h/day · 12 days$4.05

These are adjustable examples, not measured product data. Use the calculator above for your own device.

About this rate

This page uses the latest available EIA statewide residential average as a starting point. Your actual electricity price can be different because of your utility, plan, taxes, fixed charges, usage tiers, season and time-of-use pricing. For the best estimate, replace the rate in the calculator with the cents-per-kWh value from your own bill.