Gas Vs Electric Furnace Cost Calculator

Choosing between a gas and an electric furnace can be a significant decision for homeowners. One of the key factors to consider is the cost associated with operating each type of furnace. To help you make an informed decision, we have developed a Gas Vs. Electric Furnace Cost Calculator. This tool allows you to estimate the monthly operating costs of both types of furnaces based on your local utility rates and usage.


The calculator uses a straightforward formula to estimate the operating costs:

  • Electricity Cost: Electricity Cost (per kWh) x Electricity Usage (kWh per month)
  • Gas Cost: Gas Cost (per therm) x Gas Usage (therms per month)

This formula simply multiplies the cost per unit (kWh or therm) by the respective usage to calculate the monthly operating cost for both gas and electric furnaces.

How to Use

Using our Gas Vs. Electric Furnace Cost Calculator is easy:

  1. Enter your local electricity cost per kWh in the “Electricity Cost” field.
  2. Enter your local gas cost per therm in the “Gas Cost” field.
  3. Input your monthly electricity usage in kWh in the “Electricity Usage” field.
  4. Input your monthly gas usage in therms in the “Gas Usage” field.
  5. Click the “Calculate” button.

The calculator will then display the estimated monthly operating costs for both a gas and an electric furnace.


Let’s consider an example:

  • Electricity Cost (per kWh): $0.12
  • Gas Cost (per therm): $0.80
  • Electricity Usage (kWh per month): 800
  • Gas Usage (therms per month): 50

After clicking the “Calculate” button, the calculator will show the following result:

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Electricity Cost: $96.00 | Gas Cost: $40.00


Q1: Which is cheaper, gas or electric heating? A1: The cost comparison depends on your local utility rates and usage. Our calculator helps you determine which option is more cost-effective for your specific situation.

Q2: Can I change the utility rates to match my location? A2: Yes, you can input your local utility rates into the calculator to get accurate results.

Q3: Is electric heating more energy-efficient than gas heating? A3: Electric heating systems can be more energy-efficient, but gas heating systems may be cheaper to operate, depending on local energy prices.

Q4: Does this calculator consider heating efficiency? A4: No, this calculator focuses on operating costs and does not account for the heating efficiency of the furnace itself.

Q5: Can I use this calculator for commercial properties? A5: Yes, you can use it for residential or commercial properties as long as you have the relevant utility rates and usage data.

Q6: Is there a mobile app version of this calculator available? A6: Currently, we offer this calculator as a web-based tool, accessible on both desktop and mobile devices.

Q7: Can I save my calculation results for future reference? A7: Unfortunately, this calculator does not have a save feature. You may want to note down the results for your records.

Q8: Are there any limitations to this calculator? A8: This calculator provides estimates based on the data you input. It’s essential to ensure the accuracy of the information you provide.

Q9: Are there any other factors I should consider when choosing a furnace type? A9: Yes, besides cost, consider factors like heating needs, environmental impact, and local availability of natural gas.

Q10: Is there a warranty on the accuracy of the calculator’s results? A10: No, the calculator provides estimates and should not be considered a guarantee of actual utility costs.


Choosing between a gas and an electric furnace involves various factors, including cost. Our Gas Vs. Electric Furnace Cost Calculator can assist you in making an informed decision based on your specific circumstances. Keep in mind that while cost is a crucial consideration, other factors like efficiency, environmental impact, and personal preferences should also play a role in your decision-making process.

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