Electric Garage Heater Running Cost
Find out exactly what your electric garage heater costs per hour, day and month.
A 5,000-watt electric garage heater costs $0.65/hour, $2.60/day (4 hrs), and $78/month at the US average electricity rate of $0.13/kWh.
Calculate Electric Garage Heater Cost
Electric Garage Heater Cost by Wattage (US 2024)
| Wattage | Cost/Hour | Cost/Day (4 hrs) | Cost/Month |
|---|---|---|---|
| 3,000W | $0.39 | $1.56 | $47 |
| 5,000W | $0.65 | $2.60 | $78 |
| 7,500W | $0.98 | $3.90 | $117 |
| 10,000W | $1.30 | $5.20 | $156 |
$0.13/kWh, 4 hrs/day, 30 days.
Is Electric Heat a Good Choice for a Garage?
Electric garage heaters have the lowest upfront cost and simplest installation — no gas lines or venting needed. At 5,000 watts and $0.13/kWh, expect around $78/month running 4 hours daily. See the full electric heat cost guide for whole-home context.
Electric heaters cost more per BTU than natural gas in most US states. However, in states with low electricity rates like Washington ($0.10/kWh) or Louisiana ($0.08/kWh), electric heat is very competitive. For a wattage sizing guide, see garage heater wattage recommendations.