Vehicle Specification Lookup Tool🔍

BMW 840i Gas Tank Size (2020-2026)

Researched By The AutoPadre Research Team

Last Updated 2026-09-02

The BMW 840i gas tank size is 18.0 gallons.

The gas tank size of the BMW 840i, when combined with its fuel mileage, gives the 840i the following ranges depending on the model year and options:

City range from 360 miles to 414 miles
Highway range from 486 miles to 540 miles

Check out the Gas Tank Size specifications for other makes and models.

2026 BMW 840i Gas Tank Size

The 2026 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2026 BMW 840i has the following ranges:

City range of 378 miles
Highway range of 522 miles

2026 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
Base Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 432 combined
Convertible Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 432 combined
Gran Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 432 combined
xDrive Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 432 combined
xDrive Convertible Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 432 combined
xDrive Gran Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 432 combined

2026 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
Base Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 695 combined
Convertible Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 695 combined
Gran Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 695 combined
xDrive Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 695 combined
xDrive Convertible Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 695 combined
xDrive Gran Coupe	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 695 combined

2025 BMW 840i Gas Tank Size

The 2025 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2025 BMW 840i has the following ranges:

City range of 378 miles
Highway range of 522 miles

2025 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined

2025 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined

2024 BMW 840i Gas Tank Size

The 2024 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2024 BMW 840i has the following ranges:

City range of 378 miles
Highway range of 522 miles

2024 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
xDrive Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined

2024 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
Base Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
xDrive Gran Coupe Luxury	3.0L \| Turbo \| 6 Cyl. \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined

2023 BMW 840i Gas Tank Size

The 2023 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2023 BMW 840i has the following ranges:

City range of 378 miles
Highway range of 522 miles

2023 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
8 Series Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
8 Series xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
8 Series xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined
8 Series xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 522 hwy \| 450 combined

2023 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
8 Series Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	608 city \| 840 hwy \| 724 combined
8 Series xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
8 Series xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined
8 Series xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 840 hwy \| 724 combined

2022 BMW 840i Gas Tank Size

The 2022 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2022 BMW 840i has the following ranges depending on the trim level:

City range from 360 miles to 414 miles
Highway range from 486 miles to 540 miles

2022 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	414 city \| 540 hwy \| 477 combined
8 Series Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined
8 Series xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	360 city \| 486 hwy \| 423 combined
8 Series xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	360 city \| 486 hwy \| 423 combined
8 Series xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	360 city \| 486 hwy \| 423 combined

2022 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	666 city \| 869 hwy \| 768 combined
8 Series Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined
8 Series xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	579 city \| 782 hwy \| 681 combined
8 Series xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	579 city \| 782 hwy \| 681 combined
8 Series xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	579 city \| 782 hwy \| 681 combined

2021 BMW 840i Gas Tank Size

The 2021 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2021 BMW 840i has the following ranges depending on the trim level:

City range from 396 miles to 414 miles
Highway range from 522 miles to 540 miles

2021 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	414 city \| 540 hwy \| 477 combined
8 Series Sedan	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined

2021 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
8 Series Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined
8 Series Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	666 city \| 869 hwy \| 768 combined
8 Series Sedan	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined

2020 BMW 840i Gas Tank Size

The 2020 BMW 840i gas tank size is 18.0 gallons.

On a full tank of fuel, the 2020 BMW 840i has the following ranges depending on the trim level:

City range from 360 miles to 414 miles
Highway range from 486 miles to 540 miles

2020 BMW 840i Gas Tank Size (Imp.)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (miles)
Base Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined
Base Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	414 city \| 540 hwy \| 477 combined
Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	18.0 gal.	396 city \| 522 hwy \| 459 combined
xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	360 city \| 486 hwy \| 423 combined
xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	378 city \| 486 hwy \| 432 combined
xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	18.0 gal.	360 city \| 486 hwy \| 423 combined

2020 BMW 840i Gas Tank Size (Metric)
Trim	Engine \| Transmission \| Drivetrain	Gas Tank Size	Range (km)
Base Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined
Base Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	666 city \| 869 hwy \| 768 combined
Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| RWD	68.1 liters	637 city \| 840 hwy \| 739 combined
xDrive Convertible	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	579 city \| 782 hwy \| 681 combined
xDrive Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	608 city \| 782 hwy \| 695 combined
xDrive Gran Coupe	3.0L \| Intercooled Turbo \| I6 \| 8 Spd Auto w/OD \| AWD	68.1 liters	579 city \| 782 hwy \| 681 combined