BMW 430i Convertible: MPG and fuel economy by year

The EPA has rated the BMW 430i Convertible across 10 model years, from the 2017 BMW 430i Convertible through the 2026 BMW 430i Convertible. The most recent 2026 BMW 430i Convertible returns 30 combined MPG.

Pick a year below to open the full BMW 430i Convertible page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.

Fuel economy by model year

Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the BMW 430i Convertible. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.

Year	Model	Combined MPG	City	Highway	Annual fuel cost
2026	2026 BMW 430i Convertible	30 MPG	27 MPG	35 MPG	$2,300
2025	2025 BMW 430i Convertible	30 MPG	27 MPG	35 MPG	$2,300
2024	2024 BMW 430i Convertible	28 MPG	25 MPG	34 MPG	$2,450
2023	2023 BMW 430i Convertible	28 MPG	25 MPG	34 MPG	$2,450
2022	2022 BMW 430i Convertible	28 MPG	25 MPG	34 MPG	$2,450
2021	2021 BMW 430i Convertible	27 MPG	24 MPG	33 MPG	$2,550
2020	2020 BMW 430i Convertible	27 MPG	23 MPG	34 MPG	$2,550
2019	2019 BMW 430i Convertible	27 MPG	24 MPG	34 MPG	$2,550
2018	2018 BMW 430i Convertible	27 MPG	24 MPG	34 MPG	$2,550
2017	2017 BMW 430i Convertible	27 MPG	23 MPG	34 MPG	$2,550

How the BMW 430i Convertible compares against the Subcompact Cars class

Buyers usually compare the BMW 430i Convertible against other cars in the same EPA class. The list below shows the most efficient cars in the Subcompact Cars class for the 2026 model year, the latest year on this page. Each link opens the full page for that car.

Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.