2023 BMW 430i 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 2023 BMW 430i Convertible.

The 2023 BMW 430i 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 2023 BMW 430i Convertible is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2023 BMW 430i Convertible Get?

First off, the most commonly asked question. A 2023 BMW 430i Convertible gets up to 25 miles per gallon in the city, and 34 miles per gallon on the highway.

The combined average MPG for the 2023 BMW 430i Convertible is 28 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2023 BMW 430i Convertible?

The estimated fuel costs for the 2023 BMW 430i Convertible is $2,250 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 2023 BMW 430i Convertible to an average vehicle over 5 years, you will spend $2,250 more on fuel.

🛢 How Many Barrels of Petroleum Does a 2023 BMW 430i Convertible Consume?

The 2023 BMW 430i 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 2023 BMW 430i Convertible Emit?

For every mile driven, the 2023 BMW 430i Convertible will emit 313 grams of CO2, which is about 4,695,000 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 160 trees would be needed to offset emissions from the 2023 BMW 430i Convertible.

Overview

The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2023 BMW 430i Convertible.

City MPG25
Highway MPG34
Combined MPG28
Save/Spend vs Average CarSpend $2,250
Fuel Cost$2,250
Fuel Type 1Premium
Barrels of Petroleum11
Grams of CO24,695,000
Trees Needed to Offset224
DriveRear-Wheel Drive
Cylinders4
Displacement2
TransmissionAutomatic (S8)
Vehicle ClassSubcompact Cars
Start/Stop?Yes
Supercharged?No
Turbocharged?Yes

Related BMW Models from 2023

If you're interested in other BMW models from 2023, 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.

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "2023 BMW 430i Convertible MPG and Fuel Economy." MPG Buddy. Accessed on December 27, 2025. https://mpgbuddy.com/cars/bmw/430i-convertible/2023.

  • "2023 BMW 430i Convertible MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/bmw/430i-convertible/2023. Accessed December 27, 2025.

  • 2023 BMW 430i Convertible MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/bmw/430i-convertible/2023.