U.S. consumers have collectively spent approximately $107 billion more on gasoline and diesel since the start of the Iran conflict and disruptions from the Russia-Ukraine conflict. This figure is based on estimates from the Climate Solutions Lab at Brown University. This translates to an average additional expenditure of over $500 million per day since the U.S. and Israel initiated attacks on Iran on February 28.

The increased spending includes $59 billion more on gasoline alone than would have been spent without the war, according to projections from Brown University's Climate Solutions Lab. The surge in crude oil prices above $100 a barrel is contributing to this rising cost, indicating that the total will likely continue to grow in the coming weeks.

The cumulative impact of these higher fuel costs has surpassed a significant financial milestone for the U.S., with the conflict essentially sticking Americans with a 12-figure bill. The ongoing conflict and related disruptions have driven up energy prices, directly affecting consumer spending on transportation fuels.