About Induction vs Gas Cooking Cost Calculator
Cooking represents a small slice of home energy use, but it is one of the most frequent touchpoints homeowners have with their utility bills. Induction cooktops use electromagnetic coils to heat cookware directly, while gas burners heat the air and pan indirectly. That difference in heat transfer efficiency creates a measurable gap in operating cost. Induction typically delivers about 85% of its energy to the food, whereas an open gas flame may deliver only 35-40%. For a household cooking 60 minutes per day on a 2 kW induction cooktop at $0.13 per kWh, the annual induction cost is roughly $167. A 10,000 BTU/hr gas burner at $1.20 per therm and 40% efficiency costs about $183 annually. The savings may seem modest, but they are recurring and grow with higher utility rates, more cooking time, or the addition of multiple burners.
How It Works
You enter your daily cooking minutes, induction cooktop power, electricity rate, gas burner BTU rating, gas cost per therm, and the efficiency of each technology. The tool converts daily minutes to annual hours, then computes the electricity kWh consumed by induction and the therms consumed by gas. Adjusting for efficiency ensures the comparison reflects useful heat delivered to food rather than raw energy input.
Formula & Calculation Logic
Annual cooking hours equal daily minutes divided by 60 and multiplied by 365. Annual induction cost equals induction power in kW multiplied by annual hours, divided by induction efficiency, multiplied by electricity rate. Annual gas cost equals burner BTU per hour multiplied by annual hours, divided by 100,000 to convert to therms, divided by gas efficiency, multiplied by gas cost per therm. Savings equals gas cost minus induction cost.
Step-by-Step Guide
- Step 1: Estimate how many minutes you cook per day on average.
- Step 2: Enter the induction cooktop power rating, typically 1.5 to 2.5 kW per burner.
- Step 3: Input your electricity rate per kWh.
- Step 4: Enter the gas burner BTU per hour rating.
- Step 5: Add your gas cost per therm.
- Step 6: Adjust induction and gas efficiency defaults if you have better data.
- Step 7: Review annual induction cost, gas cost, and savings.
Example Calculations
- Scenario 1: 60 minutes/day, 2 kW induction, $0.13/kWh, 10,000 BTU/hr gas burner, $1.20/therm, 85% induction efficiency, 40% gas efficiency. Induction costs $167/year, gas costs $183/year, savings are $16/year.
- Scenario 2: 90 minutes/day with gas at $1.80/therm and electricity at $0.16/kWh. Gas cost rises to $412/year while induction costs $320/year, saving $92 annually.
Common Use Cases
- Compare ongoing energy costs when choosing a new stove.
- Estimate whether an induction upgrade pays back over its lifetime.
- Model the impact of changing gas or electricity rates.
- Assess cooking energy use for rental properties or commercial kitchens.
Pro Tips
- Induction also reduces kitchen heat load, which can lower summer cooling bills.
- Use actual utility bills rather than published averages for the most accurate rates.
- Consider burner usage patterns: most meals use multiple burners sequentially.
- Factor in ventilation and indoor air quality benefits when comparing total cost.
Common Mistakes to Avoid
- Comparing sticker price without considering efficiency differences.
- Using the total cooktop power instead of the burners actually used.
- Forgetting that induction requires compatible magnetic cookware.
- Ignoring regional differences in gas and electricity pricing.
Why Use This Tool?
- Side-by-side cooking cost comparison.
- Incorporates real-world efficiency, not just raw energy input.
- Helps prioritize appliance upgrades.
- Useful for budgeting and sustainability planning.