2018 BMW i3 fuel economy
The 2018 BMW i3 is rated at 35 MPG combined by the EPA. Electric versions are rated at 112–118 MPGe. EPA size class: Subcompact Cars.
MPG by version
| Version | City | Hwy | Comb. | L/100 km | UK MPG | Fuel cost/yr* |
|---|---|---|---|---|---|---|
| i3 (94Ah) with Range Extender 0.6 L 2-cyl, Automatic (A1), Rear-Wheel Drive · Plug-in hybrid · Premium Gasoline | 36 | 33 | 35 | 6.7 | 42 | $2,350 |
| i3s (94Ah) with Range Extender 0.6 L 2-cyl, Automatic (A1), Rear-Wheel Drive · Plug-in hybrid · Premium Gasoline | 36 | 33 | 35 | 6.7 | 42 | $2,350 |
Electric versions
| Version | MPGe comb. | kWh/100 mi | Range | Cost/yr* |
|---|---|---|---|---|
| i3 (94Ah) Rear-Wheel Drive · Subcompact Cars | 118 | 28.6352 | 114 mi | $650 |
| i3s (94Ah) Rear-Wheel Drive · Subcompact Cars | 112 | 29.9713 | 107 mi | $650 |
* EPA estimate of yearly fuel (or electricity) cost for 15,000 miles with 55 % city driving, at the fuel prices EPA used for this model year. Use the fuel cost comparison with your own mileage and prices.
About these numbers
EPA ratings come from standard laboratory tests adjusted to reflect real-world driving, so they are best for comparing vehicles. Your own figure will vary with speed, temperature, load, tires and driving style — measure it with the MPG calculator. If you have fitted larger tires, correct the reading with the tire size and fuel economy calculator.
Source: U.S. Environmental Protection Agency and U.S. Department of Energy, fueleconomy.gov. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.