- A BEV (battery electric vehicle) costs roughly $0.04-$0.08 per mile to fuel, while a comparable PHEV in blended mode costs $0.06-$0.12 per mile, based on four real 2025 model-year vehicles of each type.
- Among those models, PHEVs offer 26-42 miles of electric range before switching to gasoline; BEVs provide 149-363 miles of all-electric range.
- For drivers with short commutes (<30 miles round trip) and home charging, a PHEV can approach BEV-level fuel costs since most daily driving stays within electric range.
- For drivers without home charging access, a PHEV's gasoline fallback can be more practical than relying on public charging networks for a BEV.
01 PHEV vs BEV: The Basics
A BEV costs roughly $0.04–$0.08 per mile to fuel, while a comparable PHEV in blended mode costs $0.06–$0.12 per mile, based on four real 2025 model-year vehicles of each type. A plug-in hybrid electric vehicle (PHEV) combines a battery and electric motor with a traditional gasoline engine. It can drive a limited distance on electricity alone (typically 20-50 miles), then switches to gasoline. A battery electric vehicle (BEV) runs entirely on electricity, with no gasoline engine or fuel tank.
DOE Alternative Fuels Data Center: "Plug-In Hybrid Electric Vehicles" and "All-Electric Vehicles" definitions and technology descriptionsThe EPA rates both types using MPGe (miles per gallon equivalent), which converts electricity consumption to a gasoline-equivalent measure for comparison. One gallon of gasoline contains 33.7 kWh of energy, so an EV rated at 100 MPGe uses 33.7 kWh to travel 100 miles (or 3.0 mi/kWh).
EPA/DOE: "MPGe represents the number of miles a vehicle can travel using a quantity of fuel with the same energy content as a gallon of gasoline (33.7 kWh)"The key distinction for fuel cost is simple: BEVs use only electricity, which typically costs $0.04-$0.08 per mile at home charging rates depending on the vehicle's efficiency. PHEVs use a mix of electricity and gasoline, with the overall cost depending on how much driving stays within the electric range.
EPA/DOE Fuel Economy Guide, MY 2025: BEV and PHEV efficiency ratings; EIA Form 861 Table 5A, average U.S. residential electricity rate 16.5 cents/kWh (2024)02 Fuel Cost per Mile Comparison
The table below compares fuel costs for four real 2025 model-year BEVs and four real 2025 model-year PHEVs, drawn directly from EPA/DOE fuel economy test data. PHEV costs are shown in two modes: electric-only (when driving within battery range) and blended (EPA's combined UF-weighted rating that accounts for both electric and gasoline driving in typical use).
EPA/DOE Fuel Economy Guide, MY 2025: individual model ratings (comb08, combE, combinedUF fields). Costs calculated using EIA national average residential electricity (16.5¢/kWh, 2024) and gasoline ($3.30/gal, 2024)| Vehicle | EPA Efficiency | Electric Cost/Mi | Blended Cost/Mi |
|---|---|---|---|
| Nissan LEAF (BEV) | 3.29 mi/kWh | $0.050 | $0.050 |
| Tesla Model 3 LR RWD (BEV) | 4.06 mi/kWh | $0.041 | $0.041 |
| Tesla Model Y LR AWD (BEV) | 3.47 mi/kWh | $0.048 | $0.048 |
| Ford F-150 Lightning SR (BEV) | 2.03 mi/kWh | $0.081 | $0.081 |
| PHEVs below | |||
| Toyota Prius Prime (PHEV) | 3.45 mi/kWh | 48 MPG | $0.048 | $0.055 |
| Toyota RAV4 Prime AWD (PHEV) | 2.78 mi/kWh | 38 MPG | $0.059 | $0.068 |
| Jeep Grand Cherokee 4xe (PHEV) | 1.72 mi/kWh | 23 MPG | $0.096 | $0.118 |
| Volvo XC90 T8 AWD (PHEV) | 1.82 mi/kWh | 27 MPG | $0.091 | $0.103 |
In electric-only mode, PHEVs approach BEV cost levels. But the blended cost, which reflects typical driving that includes gasoline use beyond the electric range, pushes PHEV costs roughly 10-40% higher than a similarly sized BEV. In this sample the gap is widest for the Jeep Grand Cherokee 4xe (a low utility factor combined with a thirsty V6 in gas mode) and narrowest for the Toyota Prius Prime (long electric range and an efficient gas engine even when the battery is depleted).
EPA/DOE Fuel Economy Guide: utility factor methodology weights electric and gasoline driving based on typical driving patterns for each model03 EPA Efficiency Ratings by Model
The EPA publishes MPGe ratings that allow direct comparison across all electrified powertrains. Higher MPGe means lower energy cost per mile. The table below shows the same eight 2025 model-year vehicles with their EPA combined MPGe, gas-only MPG (for PHEVs), and all-electric range.
EPA/DOE Fuel Economy Guide, MY 2025: combined MPGe, comb08, and rangeA fields for the models listed| Vehicle | Combined MPGe | Gas-Only MPG | Electric Range |
|---|---|---|---|
| Nissan LEAF (BEV) | 111 | — | 149 mi |
| Tesla Model 3 LR RWD (BEV) | 137 | — | 363 mi |
| Tesla Model Y LR AWD (BEV) | 117 | — | 311 mi |
| Ford F-150 Lightning SR (BEV) | 68 | — | 240 mi |
| Toyota Prius Prime (PHEV) | 79 | 48 | 40 mi |
| Toyota RAV4 Prime AWD (PHEV) | 65 | 38 | 42 mi |
| Jeep Grand Cherokee 4xe (PHEV) | 34 | 23 | 26 mi |
| Volvo XC90 T8 AWD (PHEV) | 40 | 27 | 33 mi |
BEVs consistently achieve higher MPGe ratings because they convert electrical energy to motion far more efficiently than any combustion process. Even the least efficient BEV in this sample (Ford F-150 Lightning SR, 68 MPGe) outperforms the most efficient PHEV in gasoline-only mode (Toyota Prius Prime, 48 MPG).
DOE EERE: electric drivetrains convert 85-90% of energy to wheel power vs. 12-30% for internal combustion engines04 When a PHEV Makes More Sense
Despite the BEV's clear fuel cost advantage on a per-mile basis, there are practical scenarios where a PHEV may be the smarter choice. The decision depends on driving patterns, charging access, and trip requirements.
DOE Alternative Fuels Data Center: "Plug-In Hybrid Electric Vehicles" buyer considerations- No home charging access: Apartment dwellers or those without a garage may find it difficult to charge a BEV daily. A PHEV can run on gasoline when charging is not available, while still using public chargers opportunistically.
- Frequent long-distance trips: Drivers who regularly take trips exceeding 250-300 miles benefit from a PHEV's ability to refuel in minutes at gas stations rather than waiting 20-45 minutes at DC fast chargers.
- Short daily commute with occasional long trips: A PHEV with 26-42 miles of electric range (the span across the four PHEV models in this article) can cover a typical 25-mile round-trip commute entirely on electricity, then switch to gasoline for weekend road trips.
- Rural areas with limited charging infrastructure: The DOE's AFDC station locator shows that rural areas still have significantly fewer public chargers per capita than urban areas.
05 Total Annual Energy Cost Scenarios
The table below models annual energy cost for three driving profiles across a real BEV, PHEV, and gasoline vehicle from the same compact SUV segment: the Tesla Model Y Long Range AWD, the Toyota RAV4 Prime AWD, and a conventional gasoline Toyota RAV4 AWD. All home-charging scenarios assume the national average residential electricity rate of 16.5 cents/kWh (2024) and gasoline at $3.30/gallon (2024).
Calculated using EPA/DOE Fuel Economy Guide MY 2025 efficiency ratings for the three RAV4-class vehicles above; EIA Form 861 Table 5A and EIA gasoline price reference| Scenario | BEV: Model Y LR AWD (3.47 mi/kWh) | PHEV: RAV4 Prime AWD (2.78 mi/kWh | 38 MPG) | Gas: RAV4 AWD (29 MPG) |
|---|---|---|---|
| Short commuter (8,000 mi/yr) | $380 | $543 | $910 |
| Average driver (12,000 mi/yr) | $570 | $814 | $1,366 |
| High mileage (18,000 mi/yr) | $855 | $1,221 | $2,048 |
| Long commuter, no home charge (12,000 mi/yr) | $1,555 | $1,042 | $1,366 |
The key takeaway: for the average driver with home charging, the BEV saves $163-$366 per year over the PHEV and $530-$1,193 per year over the equivalent gasoline SUV, depending on annual mileage. But a PHEV without home charging (running in gas-only mode, which still benefits from its hybrid drivetrain) costs less than a BEV relying on public DC fast charging—$1,042 versus $1,555 per year at 12,000 miles—because the PHEV's gasoline at $3.30/gallon is cheaper than an assumed $0.45/kWh in public electricity for the equivalent portion of driving.
Calculated from table above. Relative savings depend on electricity rate, gasoline price, and proportion of electric vs. gasoline driving. The $0.45/kWh public DC fast charging rate is a typical industry estimate, not sourced from a project data file.Estimate your vehicle's driving cost using official EPA fuel economy data.
Use the Calculator06 Data Sources
- U.S. Environmental Protection Agency / Department of Energy: Fuel Economy Guide vehicle dataset, Model Year 2025. Per-model BEV and PHEV efficiency ratings (comb08, combE, combinedUF, range fields). fueleconomy.gov
- U.S. Energy Information Administration: Form EIA-861 Annual Electric Power Industry Report, Table 5A: Average Monthly Bill, Residential (2024). eia.gov
- U.S. Energy Information Administration: Gasoline and Diesel Fuel Update. eia.gov
- U.S. Department of Energy: Alternative Fuels Data Center, EV charging and PHEV/BEV technology guides. afdc.energy.gov