Stable Insights: EV Charging: Gasoline Price Equivalent Index

Overview

Stable Auto monitors thousands of non-Tesla Level 3 (L3) and Level 2 (L2) chargers across the U.S. Amidst ongoing confusion about charging costs and their impact on total cost of EV ownership, we’ve created a gasoline price equivalent index. This index translates electric vehicle charging costs into a familiar metric: gasoline prices. Understanding the varying price differences between gasoline and EV charging in each state allows EV charging companies to have a competitive advantage when it comes to planning deployments. This is because regions that offer substantial savings for drivers could see faster EV adoption in the future. It also presents a golden opportunity for station owners who are looking for higher profit margins to fuel the expansion of their charging networks.

Average EV Charging Savings by State (Q2 '25)

The average percentage discount that EV drivers experience when comparing the cost of charging an EV to the cost of gasoline.

Last updated Oct 24, 2025

EV Charging Equivalent vs. Gasoline Price by State (Q2 '25)

Last updated Oct 24, 2025

Highlights (Q2 '25)

Charging an EV costs less than fueling a typical internal combustion engine (ICE) vehicle with gasoline in every U.S. state
EV drivers save, on average, about 45% on gasoline costs compared to typical ICE drivers, with savings ranging from 18% to 70% depending on the state
The average cost of EV charging equates to gasoline priced at $1.63 per gallon vs a national average of $3.02 per gallon for gasoline
Washington drivers continue to benefit the most, saving $3.10 per gallon equivalent, a 70% discount, thanks to the region's hydropower.
In contrast, drivers in Maine save the equivalent of just $0.55 per gallon, an 18% savings due to a combination of relatively expensive electricity costs even at home and comparatively cheap gasoline
On a regional basis, the northeast shows the smallest cost savings for electric vehicles while the midwest and northwest show the deepest discounts

How this was calculated