March inflation surge set to cost consumers $8.4 billion in fuel as energy shock ripples through economy

Consumers have already paid $8.4 billion in extra fuel costs since the Iran war began, a surge that will register Friday as the sharpest monthly inflation spike since 2022. The March Consumer Price Index is forecast to rise 0.9 percent month over month, pushing annual headline inflation to 3.3 percent, driven by a 10.6 percent jump in energy prices. Gasoline now averages over $4 a gallon nationwide, a direct result of disrupted oil flows through the Strait of Hormuz, the world’s most critical petroleum corridor. This is not a typical energy blip: the U.S. has seen the largest one-month fuel cost increase since at least 1957. The shock is rippling beyond the pump. Transportation, food distribution, and manufacturing costs are rising, pushing core CPI up 0.3 percent for the month and 2.7 percent year over year. That keeps the Federal Reserve on hold. Markets assign a 98.4 percent probability to no change at the April 29 meeting, with rates expected to remain at 3.50–3.75 percent. Just months ago, the Fed projected one rate cut in 2026. Now, economists have erased that expectation. Some Fed officials have even flagged potential hikes if inflation accelerates further. Oxford Economics forecasts headline inflation will climb above 4 percent in April—despite a temporary ceasefire. The war hasn’t just moved oil. It has repriced the cost of moving everything.