US vs Spain gas price comparison misleads by mixing gallons and liters

US gas costs half as much when gallons are converted to liters

A TV panel on Spain's public broadcaster puts two figures on screen: gas at $4 in the United States and €1.99 in Spain. The headline holds up only as long as no one notices the unit. In the US, the price is quoted per gallon, not per liter, and a gallon is 3.78 liters. Converted, that $4 comes to just over a dollar per liter. About €0.95, according to the calculation circulating.

From gallon to liter: the conversion that changes the headline

The math is basic financial literacy, yet it is often skipped. Four dollars per gallon equals $1.06 per liter; converted to euros, around €0.95. Compared with the €1.99 on Spanish pumps, the difference exceeds one euro per liter. The US liter costs less than half even without any tweaking. Some argue that mixing units is not an oversight but the cleanest way to make the price here seem reasonable.

The subsidy that was already tried and why it won't return

Cutting taxes or subsidizing fuel is not a new idea. In 2022, a 20-cent-per-liter discount was applied and the result was disputed: gas stations adjusting base prices, management firms charging to process the voucher, and a state financing with debt what it had previously collected through hydrocarbon tax. The most skeptical reading sums up the script: the list price goes up, they discount it, and you end up the same or worse.

There is a detail lost in the noise: once the gallon is corrected, the liter in the US still costs half. To exaggerate the comparison, you don't need to invent anything. You just need to not convert.