Electric Heater Running Cost Calculator
Hourly and monthly cost to run an electric heater.
Enter your values
ⓘ Live results
Results
- Cost per hour
- $0.24
- Daily energy use
- 7.5 kWh
- Estimated monthly cost
- $36
Quick answer
Electric heater running cost is its wattage converted to kilowatts, multiplied by hours used and your electricity rate.
cost = (watts/1000) x hours x rate
How to use the Electric Heater Running Cost Calculator
- 1Check the wattage on the heater's label, commonly 1500W for portable space heaters.
- 2Estimate how many hours per day it runs.
- 3Enter your electricity rate from a recent utility bill to see the cost.
Worked example
Using the values the calculator loads with:
Inputs
- Heater wattage1500 W
- Hours per day5 hr
- Electricity rate0.16 $/kWh
Results
- Cost per hour$0.24
- Daily energy use7.5 kWh
- Estimated monthly cost$36
Frequently asked questions
Are space heaters expensive to run?
A 1500W heater run 8 hrs/day at $0.16/kWh costs roughly $58/month, more in high-rate areas.
Is it cheaper than central heating?
It depends — heating one room with a space heater can be cheaper than heating a whole house, but not always.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.