Cost to run appliances in Montana
Updated August 2026 · average residential rates
Quick answer: Montana pays 12.8¢/kWh on average — 24% below the US average, #12 cheapest of 51. A space heater costs about $35.02/month here (6 h/day); every other appliance is in the table below at local rates.
Run your own numbers
typically 750–1,500 W (most run at 1,500 W on high) · default assumes 6 hours/day on high during cold months
19.2¢
per hour running
$1.15
per day
$35.02
per month
$420
per year
Uses about 9.0 kWh/day at 12.8¢/kWh (Montana). National average would be $46.24/month.
Every appliance at Montana rates
Winter tip: see what heating a home costs in Montana — electric, heat pump, gas, oil and more.