EV vs Gas Cost Per Mile in New Hampshire
At New Hampshire's average prices, a Tesla Model 3 RWD costs an estimated $0.069 a mile to charge at home and a 30 mpg gas car $0.103 a mile in fuel: $410.80 a year apart over 12,000 miles. In New Hampshire, the EV spends about 67% of the gas car's cost per mile, so the rate you actually charge at matters most.
State data
What New Hampshire pays
- Home electricity
- 27.6¢/kWhEIA Electric Power Monthly, table 5.6.A · EIA, August 2026 (data as of 2026-10-25)
- Gasoline
- $3.10/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)
Home electricity in New Hampshire is 27.6¢/kWh, 52% above the US average of 18.2¢/kWh, so a Model 3 RWD costs $0.069 a mile to charge here. At $3.10/gal, a 30 mpg car in New Hampshire spends $0.103 a mile on fuel.
Statewide averages. Put your own rate and pump price in the calculator above.
EVs on the road here
New Hampshire's plug-in fleet
- Light-duty EVs registered
- 16,100 all-electric · 9,500 plug-in hybridDOE AFDC, registrations on Dec 31, 2025
- EV share of light-duty vehicles
- 1.2% all-electric · 2.0% with a plugDOE AFDC, registrations on Dec 31, 2025 · 1,299,500 vehicles
- EVs per 100 homes
- 3.0AFDC registrations ÷ RECS 2020 housing units (0.54 million)
- Public charging
- 303 locations · 824 ports (473 Level 2 · 349 DC fast)DOE AFDC station counts, 2026-10-27
- EVs per public port
- 19.5AFDC registrations ÷ AFDC public ports
New Hampshire sits in the middle of the national table for electric cars. Its 2025 registrations show 16,100 battery-electric vehicles and 9,500 plug-in hybrids among 1,299,500 light-duty vehicles. The all-electric share, 1.2%, ranks the 26th-highest of 51 and is under the US figure of 2.1%; counting every vehicle with a plug, the share is 2.0%, against 2.8% nationally. Per household, 3.0 EVs per hundred homes compares with 4.6 for the country. Plug-in hybrids are a sizable part of what plugs in here: 9,500, next to 16,100 pure EVs.
The public network is modest in size: 824 ports at 303 locations, the 11th-lowest port count among the states. Of those, 349 are DC fast and 473 are Level 2, which makes fast charging 42% of the ports, a heavier tilt than the US share of 30%. Each port carries a little less than the average load, 19.5 EVs against 21.7, and fast ports are lighter still, 46 EVs each against 72 nationally.
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 New Hampshire. Use the rate on your bill if you know it.
Rate used: 27.6¢/kWh · New Hampshire · EIA, August 2026 · gasoline $3.10/gal (2025–26 ref.) (data as of 2026-10-25) ·
Estimated savings per year (12,000 miles)
EV $0.069 a mile vs gas $0.103 a mile, home charging.
- EV cost per mile (EPA kWh/100 mi, at the wall)
- $0.069
- Gas cost per mile
- $0.103
- EV, 12,000 miles a year
- $829.20
- Gas car, 12,000 miles a year
- $1,240.00
- Savings per year
- $410.80
- Prices used
- electricity 27.6¢/kWh · gasoline $3.10/gal (New Hampshire)
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 New Hampshire
At 27.6¢/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 $0.069. A 30 mpg car at $3.10/gal spends $0.103 a mile. Over 12,000 miles: $829.20 for the EV, $1,240.00 for gasoline, a difference of $410.80 a year (fuel only). A gas car rated above about 45 mpg would match the EV here.
What the numbers say
Is an EV cheaper to fuel in New Hampshire?
Yes, but by less than almost anywhere else, and the electric rate is the reason. Home power costs 27.6¢/kWh, 52% above the US average of 18.2¢/kWh and the 8th-highest residential rate in the country, while gasoline is ordinary at $3.10/gal, 3% below the US average of $3.20/gal. Charging still undercuts the pump, at 67% of the gas car's fuel cost per mile, but the yearly gap for the page's example is the 3rd-lowest among the states.
The margin can disappear. The EV loses its fuel edge at 41.3¢/kWh, against an average of 27.6¢/kWh, and against a gas car rated at 45 mpg. That makes the vehicle you are replacing the first thing to check: put its real mpg in the calculator above, not the page default of 30 mpg. An efficient car on the gas side shrinks the gap quickly.
Public charging tightens it further. A DC fast charger priced well above the home rate can come close to the break-even of 41.3¢/kWh, so on trips the cost per mile depends on the price at the plug; enter it in the electricity field to see where it lands. A larger vehicle also shifts the result: the Ford F-150 Lightning at the home rate costs $0.133 a mile, against $0.103 for the 30 mpg gas car, so test it against the mpg of the pickup it would replace.
The rate you charge at is the lever. If your tariff has an off-peak or EV rate, it replaces 27.6¢/kWh in the field above, and at half the average, 13.8¢/kWh, the cost per mile would fall to $0.035. The plug-in hybrid vs EV vs gas page compares the three options with purchase price included, and the New Hampshire heating page shows what the same electricity rate does to a heat pump.
Questions
FAQ
Is charging an EV cheaper than gas in New Hampshire?
At New Hampshire's average prices, yes for the page's example: $0.069 a mile for a Model 3 RWD at home against $0.103 for a 30 mpg car, $410.80 a year over 12,000 miles. The EV would lose its fuel-cost edge only above about 41.3¢/kWh, or against a gas car rated above 45 mpg. Both prices are editable above.
What about public fast charging in New Hampshire?
Fast chargers usually charge more per kWh than a home rate. This page uses New Hampshire's home average, 27.6¢/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 $3.10/gal.
How do time-of-use rates change this in New Hampshire?
The EV's cost per mile moves in direct proportion to the rate you charge at. If an overnight rate were half of 27.6¢/kWh (13.8¢/kWh), the Model 3 RWD would cost $0.035 a mile instead of $0.069. Check your utility's tariff for the real overnight rate and type it in.
Does an EV still save money in New Hampshire with electricity this expensive?
On fuel, yes at average prices: the Tesla Model 3 RWD costs $0.069 a mile at 27.6¢/kWh, against $0.103 for a 30 mpg gas car. The yearly gap is the 3rd-lowest among the states, so a cheaper off-peak rate, or a pricier gas car, changes the answer more here than in most places. Enter your tariff and your current car's mpg above.
Should I look at a plug-in hybrid in New Hampshire?
Many drivers here already have: the state counts 9,500 plug-in hybrids alongside 16,100 all-electric vehicles. A plug-in hybrid runs on electricity for shorter trips and gasoline beyond that, so its cost depends on how much of your driving fits in the battery. The plug-in hybrid vs EV vs gas calculator splits the miles for you.
Bordering states
Nearby states
Same two cars, each state's own prices:
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