Gas Vs Electric Water Heater Cost Calculator

Gas Vs Electric Water Heater Cost Calculator

Estimated cost difference will be displayed here.

When it comes to choosing between a gas or electric water heater, one of the key factors to consider is the cost of operation. Your choice can have a significant impact on your monthly utility bills. To help you make an informed decision, we’ve created the Gas Vs Electric Water Heater Cost Calculator.

Formula: To calculate the cost difference, we use the following formulas:

  • Gas Cost: (Monthly Hot Water Usage / 100) * Gas Price per Therm
  • Electric Cost: (Monthly Hot Water Usage / 40) * (Electricity Rate per kWh / 100)
  • Cost Difference: Gas Cost – Electric Cost

How to Use:

  1. Enter your monthly hot water usage in gallons.
  2. Input the gas price per therm in dollars.
  3. Input the electricity rate per kWh in cents.
  4. Click the “Calculate” button to see the estimated cost difference.

Example: Let’s say you use 50 gallons of hot water per month, the gas price is $1.20 per therm, and the electricity rate is 15 cents per kWh. After entering these values and clicking “Calculate,” you will see the cost difference displayed.


  1. Which is cheaper, gas or electric water heaters?
    • The cost comparison depends on your specific usage and local utility rates. Use our calculator to find out which is cheaper for you.
  2. How do I find the gas price per therm in my area?
    • Check your gas bill or contact your gas utility provider for the current rates.
  3. What if I don’t know my exact hot water usage?
    • You can estimate it based on your typical activities, such as showers, laundry, and dishwashing.
  4. Are there any environmental considerations?
    • Electric water heaters are often considered more environmentally friendly because they produce no emissions on-site.
  5. Do gas water heaters have a higher upfront cost?
    • Gas water heaters may have a higher initial purchase and installation cost than electric ones.
  6. Can I switch from gas to electric (or vice versa) easily?
    • Switching water heater types may require modifications to your home’s infrastructure. Consult a professional plumber for guidance.
  7. Are there any government incentives for using electric water heaters?
    • Some regions offer incentives for energy-efficient appliances. Check with your local utility or government for potential rebates.
  8. What factors affect my hot water usage?
    • The number of occupants, shower duration, and appliance usage all impact your monthly hot water consumption.
  9. Can I use this calculator for commercial purposes?
    • Yes, you can use it for both residential and commercial water heating cost comparisons.
  10. Is this calculator applicable worldwide?
    • While the calculator can be used globally, it’s essential to input local gas and electricity rates for accurate results.

Conclusion: The choice between a gas and electric water heater should be based on your specific circumstances. Our Gas Vs Electric Water Heater Cost Calculator can help you determine which option is more cost-effective based on your usage patterns and local utility rates. Remember that energy efficiency and environmental considerations also play a role in this decision. Use the calculator to make an informed choice that suits your needs and budget.

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