EV vs Gas Cost Per Mile in New Hampshire
At New Hampshire's average prices, a Tesla Model 3 RWD costs an estimated $0.067 a mile to charge at home and a 30 mpg gas car $0.103 a mile in fuel: $442.00 a year apart over 12,000 miles. Home charging in New Hampshire costs a little over half as much per mile as gasoline: 64%.
State data
What New Hampshire pays
- Home electricity
- 26.6¢/kWhEIA Electric Power Monthly, table 5.6.A · EIA, July 2026 (data as of 2026-09-28)
- 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 26.6¢/kWh, 45% above the US average of 18.3¢/kWh, so a Model 3 RWD costs $0.067 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.
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: 26.6¢/kWh · New Hampshire · EIA, July 2026 · gasoline $3.10/gal (2025–26 ref.) (data as of 2026-09-28) ·
Estimated savings per year (12,000 miles)
EV $0.067 a mile vs gas $0.103 a mile, home charging.
- EV cost per mile (EPA kWh/100 mi, at the wall)
- $0.067
- Gas cost per mile
- $0.103
- EV, 12,000 miles a year
- $798.00
- Gas car, 12,000 miles a year
- $1,240.00
- Savings per year
- $442.00
- Prices used
- electricity 26.6¢/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 26.6¢/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 $0.067. A 30 mpg car at $3.10/gal spends $0.103 a mile. Over 12,000 miles: $798.00 for the EV, $1,240.00 for gasoline, a difference of $442.00 a year (fuel only). The EV would lose its per-mile edge above 41.3¢/kWh, or against a gas car rated above 47 mpg.
Questions
FAQ
Is charging an EV cheaper than gas in New Hampshire?
At New Hampshire's average prices, yes for the page's example: $0.067 a mile for a Model 3 RWD at home against $0.103 for a 30 mpg car, $442.00 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 47 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, 26.6¢/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 26.6¢/kWh (13.3¢/kWh), the Model 3 RWD would cost $0.033 a mile instead of $0.067. Check your utility's tariff for the real overnight rate and type it in.
Bordering states
Nearby states
Same two cars, each state's own prices:
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