Monthly petrol costs now nearly three times higher than electric-car charging costs

The monthly fuel bill for petrol cars in France has climbed to almost three times the energy cost for electric vehicles, according to an analysis by Roole Data. The platform said the average petrol bill rose from €112 to €137 during the first half of the year, an increase of €25.

Electric vehicles remained largely insulated from the price turbulence. Their average monthly energy cost stayed near €46 throughout the first half of the year, a level that has held since August 2025. In 2025, the average monthly cost was €119 for a petrol car, €94 for a diesel vehicle and €45 for an electric car.

Diesel costs also rose, from €98 to €119 between January and June. The average monthly cost for a non-plug-in hybrid reached €111 in June, €20 higher than at the start of the year. Plug-in hybrids remained below €100 a month when regularly recharged, although their cost rose by €10 to €88 in June.

Fuel prices have surged amid geopolitical tensions around the Strait of Hormuz, through which nearly a quarter of the world’s oil production passes. Public statistics compiled by Roole Data showed that average prices for SP95 petrol and diesel in France remained above €2 a litre on Friday.