BMW 640i Convertible MPG and Fuel Economy

BMW have been manufacturing models of 640i Convertible for 7 years, with the latest vehicle in 2018 having a combined MPG of 23.

The estimated fuel cost for the 2018 BMW 640i Convertible is $3,200 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $4,500 more on fuel driving a 2018 BMW 640i Convertible.

🛢 The BMW 640i Convertible will consume roughly 13 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the BMW 640i Convertible will emit 378 grams of CO₂, which is about 5,670,000 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 270 trees would be needed to offset emissions from the BMW 640i Convertible.

The table below is a complete list of the 7 BMW 640i Convertible fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.