How Much Does a Space Heater Cost to Run?
Running a 1500W space heater 6 hours a day for 30 days at $0.15/kWh costs about $40.50.
How to use this tool
- Enter power, hours per day, number of days and electricity rate in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your total cost and the full breakdown beneath it.
Find out how much your electric space heater adds to your monthly bill when used 6 hours daily.
Frequently asked questions
- How do I calculate electricity cost?
- Multiply the appliance wattage by hours used per day and number of days, divide by 1000 to get kWh, then multiply by your electricity rate per kWh.