Travel · official-source review · reviewed 2026-10-10
The sticker difference between two cars is one number; the trip cost is another.
Turn trip miles, a fuel economy, and two prices into the gas cost, the charging cost, and the difference.
Travellers and buyers comparing a petrol or diesel car with an electric one for a known trip.
Use the source document or official route that applies to your situation. This guide does not contact another person or verify external information.
Write the round-trip miles. Use the route you will actually drive.
Write the miles per gallon for the combustion car. Use a figure close to your real driving.
Write the price per gallon where you will fill up, not the cheapest price you have seen.
Write the miles per kilowatt-hour and the electricity price where you will charge.
Divide the miles by each efficiency, multiply by each price, and subtract. That is the trip difference.
A 300-mile trip at 30 miles a gallon and $3.40 costs $34.00 in fuel. At 3.5 miles per kilowatt-hour and 16 cents it costs $13.71, a difference of $20.29.
Use your own source and details. The example is not a record about a real person or organization.
U.S. Department of Energy and U.S. Environmental Protection Agency, FuelEconomy.gov · reviewed 2026-10-10
What this source supports: FuelEconomy.gov publishes official MPG estimates and real-world guidance for comparing vehicles.
Source limit: Your own mileage varies with driving style, load, and conditions. Budget from your real-world number.
These sources support the statements above. They do not show that every person needs this guide. They do not show a specific result.
This guide multiplies miles by rates. It does not measure real-world economy or include charging network fees.
Your own mileage varies with driving style, load, and conditions. Budget from your real-world number.
Use current instructions from the responsible organization. This guide is a planning aid, not an official decision or a substitute for qualified advice.
Turn trip miles, a fuel economy, and two prices into the gas cost, the charging cost, and the difference.
This App multiplies the numbers you enter. It does not measure real-world economy, plan a charging stop, or include network fees.
You enter every number yourself. The sources support the method and the limits. They do not produce a result for your specific case. Keep the original documents next to the sheet you build.
The App computes the worked example with your own numbers, in your browser.
APP 1
Turn trip miles, a fuel economy, and two prices into the gas cost, the charging cost, and the difference.
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Open EV Charging Versus Gas Trip CostThe App runs in this browser. It does not send or save entries. Copy, download, or print only when you choose.
This guide uses short, direct instructions as an ASD-STE100-style writing target. It is not a formal certification.
Companion App: EV Charging Versus Gas Trip Cost. It runs in this browser and does not upload your entries.
This guide is edited for clarity and checked against the sources it links. It is not a substitute for official instructions or qualified advice. A linked source does not show that every person needs this guide.