2021 BMW 230i Convertible MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2021 BMW 230i Convertible.
The 2021 BMW 230i Convertible runs on premium gasoline and is in the Subcompact Cars car class.
Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2021 BMW 230i Convertible is, we have the information you need.
🛣 How Many Miles per Gallon (MPG) Does a 2021 BMW 230i Convertible Get?
First off, the most commonly asked question. A 2021 BMW 230i Convertible gets up to 23 miles per gallon in the city, and 33 miles per gallon on the highway.
The combined average MPG for the 2021 BMW 230i Convertible is 27 miles per gallon.
💵 What is the Average Yearly Fuel Cost for a 2021 BMW 230i Convertible?
The estimated fuel costs for the 2021 BMW 230i Convertible is $2,750 per year.
That value has been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
If you were to compare a 2021 BMW 230i Convertible to an average vehicle over 5 years, you will spend $2,250 more on fuel.
🛢 How Many Barrels of Petroleum Does a 2021 BMW 230i Convertible Consume?
The 2021 BMW 230i Convertible will consume roughly 11 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
💨 How Many Grams of CO2 Does a 2021 BMW 230i Convertible Emit?
For every mile driven, the 2021 BMW 230i Convertible will emit 333 grams of CO2, which is about 4,995,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 170 trees would be needed to offset emissions from the 2021 BMW 230i Convertible.
Overview
The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2021 BMW 230i Convertible.
| City MPG | 23 |
|---|---|
| Highway MPG | 33 |
| Combined MPG | 27 |
| Save/Spend vs Average Car | Spend $2,250 |
| Fuel Cost | $2,750 |
| Fuel Type 1 | Premium |
| Barrels of Petroleum | 11 |
| Grams of CO2 | 4,995,000 |
| Trees Needed to Offset | 238 |
| Drive | Rear-Wheel Drive |
| Cylinders | 4 |
| Displacement | 2 |
| Transmission | Automatic (S8) |
| Vehicle Class | Subcompact Cars |
| Start/Stop? | Yes |
| Supercharged? | No |
| Turbocharged? | Yes |
Related BMW Models from 2021
If you're interested in other BMW models from 2021, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.
| Model | Combined MPG |
|---|---|
| 228i Gran Coupe | 28 |
| 228i xDrive Gran Coupe | 27 |
| 230i Coupe | 25 |
| 230i Coupe | 28 |
| 230i xDrive Convertible | 24 |
| 230i xDrive Coupe | 24 |
| 330e | 28 |
| 330e xDrive | 25 |
| 330i | 30 |
| 330i xDrive | 28 |
| 430i Convertible | 27 |
| 430i Coupe | 29 |
| 430i xDrive Coupe | 27 |
| 530e | 26 |
| 530e xDrive | 25 |
| 530i | 28 |
| 530i xDrive | 27 |
| 540i | 27 |
| 540i xDrive | 26 |
| 740i | 25 |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/bmw/230i-convertible/2021">2021 BMW 230i Convertible MPG and Fuel Economy</a>
"2021 BMW 230i Convertible MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/bmw/230i-convertible/2021.
"2021 BMW 230i Convertible MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/bmw/230i-convertible/2021. Accessed January 3, 2026.
2021 BMW 230i Convertible MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/bmw/230i-convertible/2021.