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EV vs Gas Cost Per Mile in Oklahoma

At Oklahoma's average prices, a Tesla Model 3 RWD costs an estimated $0.036 a mile to charge at home and a 30 mpg gas car $0.093 a mile in fuel: $689.50 a year apart over 12,000 miles. Per mile, the EV spends about 38% of what the gas car does.

An electric car plugged into a wall charger in a garage.
An electric car plugged into a wall charger in a garage.

State data

What Oklahoma pays

Home electricity
14.3¢/kWhEIA Electric Power Monthly, table 5.6.A · EIA, July 2026 (data as of 2026-09-28)
Gasoline
$2.80/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)

At 14.3¢/kWh, charging at home in Oklahoma costs $0.036 a mile for a Model 3 RWD, against $0.046 at the US-average rate. A 30 mpg car costs $0.093 a mile to fuel in Oklahoma at $2.80/gal.

Statewide averages. Put your own rate and pump price in the calculator above.

EV vs gas cost per mile

F01

Scenario A

Sets the electricity rate. Pick US average if you're not sure.

$/kWh

From EIA for Oklahoma. Use the rate on your bill if you know it.

Rate used: 14.3¢/kWh · Oklahoma · EIA, July 2026 · gasoline $2.80/gal (2025–26 ref.) (data as of 2026-09-28) ·

mpg

Estimated savings per year (12,000 miles)

$689.50/ year

EV $0.036 a mile vs gas $0.093 a mile, home charging.

EV cost per mile (EPA kWh/100 mi, at the wall)
$0.036
Gas cost per mile
$0.093
EV, 12,000 miles a year
$430.50
Gas car, 12,000 miles a year
$1,120.00
Savings per year
$689.50
Prices used
electricity 14.3¢/kWh · gasoline $2.80/gal (Oklahoma)

Estimate. Formula and sources are under “How it works”. Change any input; the result updates as you type.

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Worked example

Worked example: Model 3 RWD vs a 30 mpg car in Oklahoma

At 14.3¢/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 $0.036. A 30 mpg car at $2.80/gal spends $0.093 a mile. Over 12,000 miles: $430.50 for the EV, $1,120.00 for gasoline, a difference of $689.50 a year (fuel only). That difference is the 32nd-highest of the 51 on this site.

Questions

FAQ

Is charging an EV cheaper than gas in Oklahoma?

At Oklahoma's average prices, yes for the page's example: $0.036 a mile for a Model 3 RWD at home against $0.093 for a 30 mpg car, $689.50 a year over 12,000 miles. The EV would lose its fuel-cost edge only above about 37.3¢/kWh, or against a gas car rated above 78 mpg. Both prices are editable above.

What about public fast charging in Oklahoma?

Fast chargers usually charge more per kWh than a home rate. This page uses Oklahoma's home average, 14.3¢/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 $2.80/gal.

How do time-of-use rates change this in Oklahoma?

The EV's cost per mile moves in direct proportion to the rate you charge at. If an overnight rate were half of 14.3¢/kWh (7.2¢/kWh), the Model 3 RWD would cost $0.018 a mile instead of $0.036. 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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