Updated August 22, 2026
Space Heater Cost Per Hour
See running costs for every common wattage at US electricity rates.
Space Heater Cost Per Hour by Wattage (US Average 18.44¢/kWh)
| Wattage | Cost Per Hour | Cost Per Day (8 hrs) | Cost Per Month |
|---|---|---|---|
| 750W | $0.14 | $1.11 | $33.19 |
| 1000W | $0.18 | $1.48 | $44.26 |
| 1500W | $0.28 | $2.21 | $66.38 |
| 2000W | $0.37 | $2.95 | $88.51 |
| 3000W | $0.55 | $4.43 | $132.77 |
Based on the US average of 18.44¢/kWh (EIA Electric Power Monthly, May 2026), 30 days, at rated wattage throughout. Adjust to your own rate using the calculator below.
Custom Cost Calculator
US average is 18.44¢/kWh (EIA, May 2026).
Frequently Asked Questions
Want to compare across all wattages at once? Our space heater cost calculator lets you enter any wattage and usage for an instant result. For whole-home context, see our how much electric heat costs breakdown.