Result
$824.00 less per year for the EV
The EV has the lower entered energy cost by $824.00 per year. This compares energy only, not total ownership cost or the better vehicle choice.
- Gas annual energy cost
- $1,400.00
- EV annual energy cost
- $576.00
- Gas energy cost per mile
- $0.1167 per mile
- EV energy cost per mile
- $0.0480 per mile
- Monthly energy cost difference
- $68.67
- Estimated grid energy for the EV
- 3,600 kWh/year
Estimate only. This is an energy-only comparison from the miles, efficiency, and prices entered. It does not predict fuel or electricity prices or include purchase price, financing, incentives, insurance, maintenance, depreciation, charging access, taxes, or resale value. Read the full disclaimer.
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At a glance
- Cost
- Free
- Login
- Not required
- Best use
- Compare annual, monthly, and per-mile energy cost for a gasoline vehicle and an EV using your mileage, fuel economy, EPA electricity use, and entered energy prices.
- Output
- Browser result with print and PDF options
- Reviewed
- 2026-08-09
Result summary
Quick answer
With the sample inputs, this calculator returns $824.00 less per year for the EV. Gas annual energy cost: $1,400.00. Use $824.00 less per year for the EV as a planning scenario. Use the difference as an energy-only scenario, then replace the sample rates and test the charging mix you expect before comparing ownership costs separately.
This compares driving energy, not total vehicle ownership
The calculator applies the same annual miles to gasoline MPG and EV grid kWh per 100 miles, then prices each energy input at the rate you enter. It intentionally excludes purchase price, financing, incentives, insurance, maintenance, depreciation, registration, charging equipment, taxes, and resale value.
Publisher Published by EverydayCalc Editorial Editorial standards and limitations
Each calculator shows its formula and defines the inputs. Worked examples make the math checkable. The page also names the limits that can change the result.
Last calculation review:
Review scope: formula implementation, example parity, visible assumptions, source links, and result presentation. This is editorial and calculation QA, not professional financial, tax, legal, medical, engineering, or safety review.
Results are estimates based on the inputs provided and the assumptions shown on this page. For financial, tax, legal, medical, or other high-stakes decisions, verify results with a qualified professional or official source.
Instructions
How to use this calculator
Open the short walkthrough for choosing and checking inputs.
The gas side divides annual miles by MPG and multiplies gallons by the entered fuel price. The EV side applies the entered EPA or utility kWh per 100 miles directly to annual miles and the electricity rate; standard EPA electricity-use figures already include charging losses.
Page guide
On this page
Jump directly to the part of the calculator you need.
Calculation details
Formula and methodology
See the exact math used to produce the result.
Gas annual cost = annual miles divided by MPG, multiplied by gas price. EV annual cost = annual miles multiplied by grid kWh per 100 miles divided by 100, multiplied by electricity rate. The displayed difference compares those two annual energy totals.
Before acting
Assumptions to check
Review the real-world details that can change the estimate.
Gas annual cost is annual miles divided by MPG, multiplied by gas price. EV annual cost is annual miles multiplied by grid kWh per 100 miles divided by 100, multiplied by electricity rate. EPA-style kWh per 100 miles is grid energy, so the calculator does not add a second charging-loss factor. Both results are energy-only estimates.
More guidance Examples, methodology, and planning checks Open the worked example, review notes, reference tables, and practical next checks.
When to round up
Annual energy costs round to cents before the displayed difference is compared. The kWh input is grid electricity use, so the model does not apply a second charging-loss adjustment. Purchase price, financing, incentives, depreciation, insurance, registration, maintenance, repairs, charging equipment, taxes, and resale value are excluded.
When to use this calculator
- Comparing energy cost for the same annual miles in a gas vehicle and an EV
- Testing home, public, or blended electricity-rate scenarios
- Separating fuel and charging cost from full vehicle ownership cost
Tips for better estimates
- Use a consistent annual-mile estimate for both vehicles.
- Enter grid kWh per 100 miles and do not add a second charging-loss factor to an EPA-style input.
- Run separate scenarios when home and public charging rates differ materially.
How this calculator is reviewed
This page is checked for inputs, formulas, examples, assumptions, topic fit, and related links. For this calculator, the review also covers the same annual miles on both sides, gas MPG and price, grid kWh per 100 miles, the all-in electricity rate, cents rounding, excluded ownership costs, and separate home and public-charging scenarios.
The sample result is covered by automated tests, and the page links to related calculators and, where available, supporting guides so readers can check the assumptions before acting. If a formula, label, or assumption looks off, send the page URL and your inputs through the contact page.
Sources to verify assumptions
Use these official and consumer-reference sources to check the terms and rules behind the inputs. The calculator result still depends on the values and method you select.
Worked example
Example inputs: Annual driving distance: 12000 miles; Gas vehicle fuel economy: 30 MPG; Gasoline price: $3.5 /gallon; EPA or utility electricity use: 30 kWh/100 miles; Electricity rate: $0.16 /kWh. With those values, the calculator returns $824.00 less per year for the EV. The EV has the lower entered energy cost by $824.00 per year. This compares energy only, not total ownership cost or the better vehicle choice.
Example scenarios
- At 12,000 miles, 30 MPG, and $3.50 per gallon, gasoline costs $1,400 per year before any non-fuel cost.
- At the same miles, 30 kWh per 100 miles, and $0.16 per kWh, electricity costs $576 per year before any non-energy cost.
- Rerun a public-charging scenario with its effective rate rather than calling a home-rate result universal.
Quick reference chart
| Sample result | $824.00 less per year for the EV |
|---|---|
| Gas annual energy cost | $1,400.00 |
| EV annual energy cost | $576.00 |
| Gas energy cost per mile | $0.1167 per mile |
| EV energy cost per mile | $0.0480 per mile |
| Best next step | Treat the per-mile and annual difference as an energy-only comparison. Replace the sample gas and all-in electricity rates with your own inputs, then use Vehicle Cost Per Mile if ownership costs matter. |
FAQs
Gas vs EV Cost Calculator questions
Does this calculate total EV ownership savings?
No. It compares entered gasoline and electricity costs only. Use a complete ownership-cost comparison for purchase, financing, depreciation, insurance, maintenance, taxes, and resale value.
Does EPA kWh per 100 miles include charging losses?
Yes. Standard EPA electricity-use figures reflect electricity drawn from the wall, so this calculator does not apply a second charging-efficiency adjustment.
Can I compare public charging?
Yes. Enter the effective price per kWh for the charging mix you expect. Run separate home and public-charging scenarios when the prices differ materially.
Does a lower energy cost mean one vehicle is the better choice?
No. Vehicle price, range, charging access, insurance, repairs, depreciation, taxes, comfort, and usage needs remain separate decisions.
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Common planning mistakes
Comparing different annual-mile assumptions, treating energy savings as total ownership savings, using battery capacity instead of grid kWh per 100 miles, adding a second charging-loss adjustment, and using an electricity rate that does not match the expected charging mix.
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EverydayCalc.org, "Gas vs EV Cost Calculator", last updated August 9, 2026, https://everydaycalc.org/calculators/gas-vs-ev-cost-calculator/Was this calculator helpful?
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