2020 BMW i8 Gas Tank Size & Fuel Capacity
Fuel tank capacity
11.1gal · 42 L
The 2020 BMW i8 has a fuel tank capacity of 11.1 gallons (42 liters) on every trim.
A full tank is good for roughly 322 highway miles or 289 miles around town, going by the EPA ratings.
11.1 gal · Smaller than 97% of 2020 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2020 BMW i8 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr Convertible AWD 1.5L 3cyl Turbo 6A · AWD Plug-in hybrid MPG 26 / 29Range 289 / 322 mi | 1.5L 3cyl Turbo 6A Plug-in hybrid | AWD | 11.1 gal42 L | 26 / 29 | 289 / 322 mi | |
| 2dr Coupe AWD 1.5L 3cyl Turbo 6A · AWD Plug-in hybrid MPG 26 / 29Range 289 / 322 mi | 1.5L 3cyl Turbo 6A Plug-in hybrid | AWD | 11.1 gal42 L | 26 / 29 | 289 / 322 mi | |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2020 BMW i8 goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 27 MPG, a full 11.1-gallon tank covers about 300 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 11.1 | 322 | 289 |
| 3/4 | 8.3 | 241 | 216 |
| 1/2 | 5.6 | 161 | 144 |
| 1/4 | 2.8 | 80 | 72 |
| 1/8 | 1.4 | 40 | 36 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 556 gallons, roughly 50 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 27 MPG
- Tailpipe CO2
- 191 g/mi
- EPA greenhouse score
- 10 of 10
- Source
- EPA ratings
What it costs to fill up a 2020 BMW i8
$58.61 to fill the 11.1-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 11.1 gal | Premium | $5.28 | $58.61 | $43.96 |
By region, 11.1-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $54.72 |
| Midwest | $5.37 | $59.61 |
| Gulf CoastLowest | $4.57 | $50.73 |
| Rocky Mountain | $5.12 | $56.83 |
| West Coast | $6.08 | $67.49 |
| CaliforniaHighest | $6.36 | $70.60 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 11.1-gallon tank$58.61
- A year of driving (15,000 mi)$2,933
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
i8 tank size in other years
The 2020 i8 uses the same 11.1 gal tank as the 2019 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2020 i8 | 11.1 gal | 322 mi |
| 2019 i8 | 11.1 gal | 322 mi |
| 2017 i8 | 11.1 gal | 322 mi |
| 2016 i8 | 11.1 gal | 322 mi |
| 2015 i8 | 11.1 gal | 322 mi |
| 2014 i8 | 11.1 gal | 322 mi |
2020 BMW i8 vs similar 2020 coupes
The i8 has the smallest tank of the five 2020 coupes compared here: 11.1 gallons, against 18.5 for the Jaguar F-TYPE.
| 2020 model | Tank | Longest highway range |
|---|---|---|
| Jaguar F-TYPE | 16.6–18.5 gal | 518 mi |
| Porsche 911 | 16.9–17.6 gal | 422 mi |
| Mercedes-Benz C-Class | 17.4 gal | 609 mi |
| Audi A5 | 15.3 gal | 490 mi |
| BMW i8 | 11.1 gal | 322 mi |
Other 2020 coupes of a similar size, one model per brand.
2020 BMW i8 fuel system recalls
None of the 1 recall NHTSA lists for the 2020 BMW i8 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2020 BMW i8?
The 2020 BMW i8 holds 11.1 gallons (42 liters) on every trim we list.
How many gallons and liters does the 2020 BMW i8 gas tank hold?
The 2020 BMW i8 tank holds 42 liters, or 11.1 gallons in US gallons.
How far can a 2020 BMW i8 go on a full tank?
About 322 miles on the highway and 289 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2020 BMW i8 go on a quarter tank?
About 80 highway miles or 72 in town from the 11.1-gallon tank, which has roughly 2.8 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2020 BMW i8 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2020 BMW i8?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 11.1-gallon tank from empty costs $58.61. It ranges from $50.73 in the Gulf Coast to $70.60 in California.
How much does a full tank of gas weigh in a 2020 BMW i8?
About 69 pounds for the 11.1-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2020 BMW i8 have a bigger gas tank than the Audi A5?
No. The 2020 Audi A5 holds up to 15.3 gallons; the 2020 BMW i8 holds up to 11.1.
Has the 2020 BMW i8 had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2020 BMW i8 involve the fuel system.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
- Recalls: NHTSA recall database (BMW fuel system recalls).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.