EV vs Gas Cost Per Mile in Connecticut
At Connecticut's average prices, a Tesla Model 3 RWD costs an estimated $0.061 a mile to charge at home and a 30 mpg gas car $0.110 a mile in fuel: $584.70 a year apart over 12,000 miles. The EV still costs less per mile, about 56% of the gas car, but Connecticut's 24.5¢/kWh rate narrows the gap.
State data
What Connecticut pays
- Home electricity
- 24.5¢/kWhEIA Electric Power Monthly, table 5.6.A · EIA, August 2026 (data as of 2026-10-25)
- Gasoline
- $3.30/galEIA weekly regional / AAA state averages, 2025–26 reference
- EV used for the page
- Tesla Model 3 RWD, 25 kWh/100 miEPA, fueleconomy.gov (combined)
Connecticut has the 11th-highest electricity rate of the 51 on this site: 24.5¢/kWh. Connecticut's pump price of $3.30/gal is the 13th-highest of the 51 on this site.
Statewide averages. Put your own rate and pump price in the calculator above.
EVs on the road here
Electric vehicles in Connecticut
- Light-duty EVs registered
- 48,800 all-electric · 26,400 plug-in hybridDOE AFDC, registrations on Dec 31, 2025
- EV share of light-duty vehicles
- 1.7% all-electric · 2.7% with a plugDOE AFDC, registrations on Dec 31, 2025 · 2,797,500 vehicles
- EVs per 100 homes
- 3.5AFDC registrations ÷ RECS 2020 housing units (1.38 million)
- Public charging
- 1,669 locations · 4,985 ports (4,215 Level 2 · 761 DC fast)DOE AFDC station counts, 2026-10-27
- EVs per public port
- 9.8AFDC registrations ÷ AFDC public ports
Connecticut counted 48,800 battery-electric cars and light trucks at the end of 2025, plus 26,400 plug-in hybrids, out of 2,797,500 light-duty vehicles. The all-electric share of 1.7% is a little under the US figure of 2.1% and ranks the 20th-highest; counting plug-in hybrids too, 2.7% of vehicles carry a plug. Per household that is 3.5 EVs for every hundred homes, against 4.6 nationally.
Where Connecticut stands apart is the charging it has for that fleet. Its 1,669 public locations hold 4,985 ports, the 17th-highest total of any state, and the great majority, 4,215, are Level 2. DC fast ports number 761, only 15% of the total against 30% for the US. Because the ports are many and the cars fewer, each public port serves 9.8 EVs, against 21.7 nationally, the 8th-lowest ratio among the 51. Per fast port the count is 64, against 72.
Registrations: DOE AFDC, registrations on Dec 31, 2025, light-duty vehicles, rounded to the nearest hundred by AFDC. Charging: DOE AFDC station counts, 2026-10-27, public stations only.
EV vs gas cost per mile
F01Scenario A
Sets the electricity rate. Pick US average if you're not sure.
From EIA for Connecticut. Use the rate on your bill if you know it.
Rate used: 24.5¢/kWh · Connecticut · EIA, August 2026 · gasoline $3.30/gal (2025–26 ref.) (data as of 2026-10-25) ·
Estimated savings per year (12,000 miles)
EV $0.061 a mile vs gas $0.110 a mile, home charging.
- EV cost per mile (EPA kWh/100 mi, at the wall)
- $0.061
- Gas cost per mile
- $0.110
- EV, 12,000 miles a year
- $735.30
- Gas car, 12,000 miles a year
- $1,320.00
- Savings per year
- $584.70
- Prices used
- electricity 24.5¢/kWh · gasoline $3.30/gal (Connecticut)
Estimate. Formula and sources are under “How it works”. Change any input; the result updates as you type.
Worked example
Worked example: Model 3 RWD vs a 30 mpg car in Connecticut
At 24.5¢/kWh, a Model 3 RWD (25 kWh per 100 miles, EPA) draws 25 kWh from the wall for every 100 miles (the EPA measures it at the wall), so each mile costs $0.061. A 30 mpg car at $3.30/gal spends $0.110 a mile. Over 12,000 miles: $735.30 for the EV, $1,320.00 for gasoline, a difference of $584.70 a year (fuel only). That gap is the 42nd-highest of the 51 on this site.
What the numbers say
What the numbers say in Connecticut
The fuel saving from an EV is real in Connecticut but smaller than in most of the country, and the electricity price is the reason. Home power costs 24.5¢/kWh, 35% above the US average of 18.2¢/kWh, while gasoline at $3.30/gal is 3% above the US average of $3.20/gal. For the page's Tesla Model 3 RWD that means $0.061 a mile, against $0.110 for a 30 mpg car, or $584.70 a year over 12,000 miles. That yearly figure is the 42nd-highest among the states at their average prices.
The margin still holds up well. The EV would match the gas car per mile only at 44.0¢/kWh, against an average of 24.5¢/kWh, or against a gas car rated 54 mpg. A time-of-use plan matters more here than in a cheap-power state, because every cent off the rate shows up directly in the cost per mile: at half the average rate, 12.3¢/kWh, the Tesla Model 3 RWD drops to $0.031 a mile. Look at your utility's tariff for an overnight price and enter it in the calculator above.
The Level 2-heavy public network shapes how charging away from home works out. Most public ports here are slower units meant for a car parked for hours, and their price per kilowatt-hour, or per hour, is what to compare with your home rate. If a session costs more than 44.0¢/kWh, it costs more per mile than gasoline; below that, the EV keeps its lead. For trips, the 761 fast ports are the ones that count.
Winter still trims range, with 5,800 heating degree-days, 29% more than the US average of 4,500; the cold-weather range calculator shows the effect on range. To weigh the purchase as well as the fuel, the plug-in hybrid vs EV vs gas page adds the vehicle cost, and the EV charging cost by model page gives a monthly figure for other cars.
Questions
FAQ
Is charging an EV cheaper than gas in Connecticut?
At Connecticut's average prices, yes for the page's example: $0.061 a mile for a Model 3 RWD at home against $0.110 for a 30 mpg car, $584.70 a year over 12,000 miles. The EV would lose its fuel-cost edge only above about 44.0¢/kWh, or against a gas car rated above 54 mpg. Both prices are editable above.
What about public fast charging in Connecticut?
Fast chargers usually charge more per kWh than a home rate. This page uses Connecticut's home average, 24.5¢/kWh. To see the cost per mile on the road, type the charger's price per kWh into the electricity rate field; the gas side stays at $3.30/gal.
How do time-of-use rates change this in Connecticut?
The EV's cost per mile moves in direct proportion to the rate you charge at. If an overnight rate were half of 24.5¢/kWh (12.3¢/kWh), the Model 3 RWD would cost $0.031 a mile instead of $0.061. Check your utility's tariff for the real overnight rate and type it in.
What does a month of home charging cost in Connecticut?
At the average residential rate of 24.5¢/kWh, the Tesla Model 3 RWD costs $735.30 a year for 12,000 miles, or $0.061 a mile. The Ford F-150 Lightning uses more energy per mile and comes to $0.118. Divide the yearly figure by twelve for a monthly estimate, then check your bill: a time-of-use rate, if your utility offers one, changes the answer.
Will I find a public charger easily in Connecticut?
On numbers alone, yes. The state has 4,985 public ports for 48,800 EVs, which is 9.8 EVs per port against 21.7 nationally. The catch is speed: only 761 of them are DC fast. For a quick top-up on a trip you will rely on those; for parking all day, a Level 2 port works.
Bordering states
Nearby states
Same two cars, each state's own prices:
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