EV Savings Vs Gas Calculator
Calculate annual fuel savings from switching to an electric vehicle based on driving miles. Enter values for instant results with step-by-step formulas.
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer
EV Savings Vs Gas Calculator
Calculator
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Formula: Annual Fuel Savings = (Miles/MPG x Gas Price) - (Miles/Efficiency x Electric Rate)
Worked example — Annual savings: $1,754 | 8-year savings: $14,034 | Fuel cost reduction: 70.3%
Formula
Annual Fuel Savings = (Miles/MPG x Gas Price) - (Miles/Efficiency x Electric Rate)
Annual gas fuel cost divides total miles by fuel efficiency (MPG) then multiplies by gas price per gallon. Annual EV fuel cost divides total miles by EV efficiency (miles per kWh) then multiplies by electricity rate. The difference is your annual fuel savings, plus maintenance savings.
Worked Examples
Example 1: Average American Driver Comparison
Problem:A driver covers 12,000 miles/year. Gas car: 28 MPG, gas $3.50/gal, $1,200/yr maintenance. EV: 3.5 mi/kWh, electricity $0.13/kWh, $500/yr maintenance. Compare over 8 years.
Solution:Gas fuel/yr = (12,000 / 28) x $3.50 = $1,500.00 EV fuel/yr = (12,000 / 3.5) x $0.13 = $445.71 Fuel savings/yr = $1,500 - $446 = $1,054 Maintenance savings/yr = $1,200 - $500 = $700 Total savings/yr = $1,054 + $700 = $1,754 Lifetime savings = $1,754 x 8 = $14,034
Result:Annual savings: $1,754 | 8-year savings: $14,034 | Fuel cost reduction: 70.3%
Example 2: High-Mileage Commuter Savings
Problem:A commuter drives 25,000 miles/year. Gas car: 25 MPG, gas $4.00/gal, $1,500/yr maintenance. EV: 3.0 mi/kWh, electricity $0.15/kWh, $600/yr maintenance. 6-year comparison.
Solution:Gas fuel/yr = (25,000 / 25) x $4.00 = $4,000.00 EV fuel/yr = (25,000 / 3.0) x $0.15 = $1,250.00 Fuel savings/yr = $4,000 - $1,250 = $2,750 Maintenance savings/yr = $1,500 - $600 = $900 Total savings/yr = $2,750 + $900 = $3,650 Lifetime savings = $3,650 x 6 = $21,900
Result:Annual savings: $3,650 | 6-year savings: $21,900 | Fuel cost reduction: 68.8%
Frequently Asked Questions
How much can I save by switching from a gas car to an electric vehicle?
The savings from switching to an electric vehicle depend on several factors including your annual mileage, local fuel and electricity prices, and the efficiency of both vehicles. On average, American drivers save between one thousand and two thousand dollars per year on fuel alone. Electricity costs roughly one-third to one-fifth as much as gasoline per mile driven. For example, a driver covering twelve thousand miles per year in a car getting twenty-eight miles per gallon at three dollars and fifty cents per gallon spends about fifteen hundred dollars annually on fuel. The same distance in an EV consuming three and a half miles per kilowatt-hour at thirteen cents per kilowatt-hour costs roughly four hundred fifty dollars. Maintenance savings add another five hundred to seven hundred dollars annually.
What is EV efficiency measured in miles per kWh?
EV efficiency is measured in miles per kilowatt-hour, which indicates how far the vehicle travels on one kilowatt-hour of electricity from the battery. This metric is the electric equivalent of miles per gallon for gas cars. Modern EVs range from about two and a half to four and a half miles per kilowatt-hour depending on the vehicle size, driving conditions, and weather. Compact EVs like the Hyundai Ioniq 6 achieve around four miles per kilowatt-hour, while larger electric trucks and SUVs may only manage two and a half to three miles per kilowatt-hour. Cold weather, highway driving, and heavy use of climate controls can reduce efficiency by twenty to forty percent compared to ideal conditions.
Why are EV maintenance costs lower than gas vehicles?
Electric vehicles have dramatically lower maintenance costs because they have far fewer moving parts than internal combustion engines. An EV drivetrain has roughly twenty moving parts compared to over two thousand in a gas engine with its transmission, exhaust system, and cooling system. EVs do not need oil changes, spark plug replacements, timing belt service, transmission fluid changes, fuel filter replacements, or exhaust system repairs. Regenerative braking reduces brake pad and rotor wear by sixty to seventy percent since the electric motor handles most of the deceleration. The main EV-specific maintenance items are tire rotations, cabin air filter replacement, brake fluid changes, and eventually battery coolant service. Average annual EV maintenance costs around three hundred to six hundred dollars versus eight hundred to fifteen hundred for gas vehicles.
How does home charging compare to gas station costs?
Home charging is typically the most affordable way to power an electric vehicle and is where most EV owners do eighty to ninety percent of their charging. The average residential electricity rate in the United States is about thirteen to sixteen cents per kilowatt-hour, though time-of-use plans can offer off-peak rates as low as five to eight cents per kilowatt-hour during nighttime hours. Charging an EV overnight during off-peak hours can reduce fuel costs by seventy to eighty percent compared to gasoline. Some utility companies offer special EV charging rate plans with even lower overnight rates. Solar panel owners can charge their EVs essentially for free after the system payback period, making the fuel cost effectively zero for the remaining life of the solar installation.
Do electric vehicles hold their value compared to gas cars?
Electric vehicle depreciation patterns have evolved significantly as the market matures. Earlier EVs with limited range depreciated faster than gas equivalents due to battery degradation concerns and rapid technology improvements. However, modern EVs with larger batteries and better thermal management systems retain value more competitively. Popular models like the Tesla Model 3 and Model Y have shown strong resale values, sometimes even appreciating during periods of high demand. Factors that affect EV resale value include battery health percentage, available range, charging speed capability, and software update support. The elimination of fuel and major maintenance costs effectively increases the total cost of ownership advantage over the vehicle lifetime even if initial depreciation is slightly higher.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
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