# BMW i3 specs and mpg by year - **Latest year:** 2021 - **MPG (combined):** 31 - **Drive:** RWD - **Years covered:** 2015-2021 ## Quick answer The 2021 BMW i3 is a subcompact car rated at 31 mpg combined. Engines: Electric; 0.6L 2 plug-in hybrid. ## Every 2021 BMW i3 version | Version | Engine | Drive | Transmission | City/Hwy | Combined | Range | 240V charge | Fuel cost / year | CO2 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | i3s | Electric | RWD | Single-speed | 124/102 MPGe | 113 MPGe | 153 mi | 7.0 h | $650 | 0 g/mi | | i3 | Electric | RWD | Single-speed | 124/102 MPGe | 113 MPGe | 153 mi | 7.0 h | $650 | 0 g/mi | | i3 with Range Extender | 0.6L 2 plug-in hybrid | RWD | Single-speed | 30/31 | 31 mpg | -- | 7.0 h | $2,650 | 22 g/mi | | i3s with Range Extender | 0.6L 2 plug-in hybrid | RWD | Single-speed | 30/31 | 31 mpg | -- | 7.0 h | $2,650 | 22 g/mi | Each row is a version the EPA tested. Fuel cost assumes 15,000 miles a year (55% city) at national average prices; CO2 is tailpipe emissions. ## BMW i3 specs by year | Year | Engines | Transmission | Drive | MPG (combined) | MPGe | EV range | | --- | --- | --- | --- | --- | --- | --- | | 2021 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 31 | 113 | 153 mi | | 2020 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 31 | 113 | 153 mi | | 2019 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 31 | 113 | 153 mi | | 2018 | 0.6L 2 plug-in hybrid; Electric | Single-speed | RWD | 35 | 112-118 | 114 mi | | 2017 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 35 | 118-124 | 114 mi | | 2016 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 39 | 124 | 81 mi | | 2015 | Electric; 0.6L 2 plug-in hybrid | Single-speed | RWD | 39 | 124 | 81 mi | EPA combined ratings. MPGe is the EPA efficiency measure for electric cars. Ranges cover every engine and drivetrain EPA tested for that year. ## How has the i3 changed over the years? - **2019:** combined mpg went from 35 to 31; maximum range went from 114 to 153 miles. - **2017:** combined mpg went from 39 to 35; maximum range went from 81 to 114 miles. ## Frequently asked questions ### What mpg does the 2021 BMW i3 get? The 2021 BMW i3 is EPA-rated at 31 mpg combined, depending on engine and drivetrain. Real-world mileage varies with speed, climate and load. ### What is the range of the 2021 BMW i3? The 2021 BMW i3 has an EPA-estimated range of up to 153 miles on a full charge, with an efficiency rating of 113 MPGe combined. Cold weather and highway speed reduce range. ### What engine does the 2021 BMW i3 have? The 2021 BMW i3 comes with: Electric; 0.6L 2 plug-in hybrid. It uses single-speed transmission and is offered with RWD. ### Is there a hybrid BMW i3? Yes. The BMW i3 has been offered as a plug-in hybrid in some model years; the table above shows which. ### Which BMW i3 year gets the best gas mileage? In the EPA data, the 2016 BMW i3 has the highest combined rating, up to 39 mpg. Ratings for the same model can change between years when engines or test procedures change. ### How much does it cost to fuel a 2021 BMW i3 for a year? About $650-$2,650 a year, using the EPA's assumptions of 15,000 miles (55% city, 45% highway) at national average fuel prices. Your cost depends on your local prices, mileage and driving style. ### What is the city and highway mpg of the 2021 BMW i3? The most efficient 2021 version, the i3 with Range Extender, is rated 30 mpg city and 31 mpg highway (31 combined). Other engines and drivetrains are rated lower; the versions table above lists each one. ### How much CO2 does the 2021 BMW i3 emit? EPA rates its tailpipe CO2 at 22 grams per mile depending on version. Lower is better; the cleanest gas cars sit under 250 g/mi and electric cars have none at the tailpipe. ## Sources - [fueleconomy.gov (US DOE and EPA)](https://www.fueleconomy.gov/) ## All BMW cars - [BMW X2](https://diagxcar.com/vehicles/bmw-x2) - [BMW Z4](https://diagxcar.com/vehicles/bmw-z4) - [BMW 2 Series](https://diagxcar.com/vehicles/bmw-2-series) - [BMW 4 Series](https://diagxcar.com/vehicles/bmw-4-series) - [BMW 8 Series](https://diagxcar.com/vehicles/bmw-8-series) - [BMW M](https://diagxcar.com/vehicles/bmw-m) - [BMW 3 Series](https://diagxcar.com/vehicles/bmw-3-series) - [BMW i4](https://diagxcar.com/vehicles/bmw-i4) - [BMW i5](https://diagxcar.com/vehicles/bmw-i5) - [BMW 5 Series](https://diagxcar.com/vehicles/bmw-5-series) - [BMW 7 Series](https://diagxcar.com/vehicles/bmw-7-series) - [BMW i7](https://diagxcar.com/vehicles/bmw-i7) ## More BMW models - [BMW iX](https://diagxcar.com/vehicles/bmw-ix) - [BMW X1](https://diagxcar.com/vehicles/bmw-x1) - [BMW X3](https://diagxcar.com/vehicles/bmw-x3) - [BMW X5](https://diagxcar.com/vehicles/bmw-x5) ## Other subcompact cars - [Chevrolet Camaro](https://diagxcar.com/vehicles/chevrolet-camaro) - [Chevrolet Spark](https://diagxcar.com/vehicles/chevrolet-spark) - [Ford Mustang](https://diagxcar.com/vehicles/ford-mustang) - [Infiniti Q60](https://diagxcar.com/vehicles/infiniti-q60) - [Lexus RC](https://diagxcar.com/vehicles/lexus-rc) - [Mercedes-Benz A-Class](https://diagxcar.com/vehicles/mercedes-benz-a-class) - [Mercedes-Benz CLE-Class](https://diagxcar.com/vehicles/mercedes-benz-cle-class) ## Car care - [How long do tires last?](https://diagxcar.com/how-long/tires) - [How often to change oil](https://diagxcar.com/how-often/change-oil) - [Tire size calculator](https://diagxcar.com/tools/tire-size-calculator) --- Source page: https://diagxcar.com/vehicles/bmw-i3 Updated: 2026-11-03 General information, not a substitute for a qualified mechanic.