How To Convert U.S. Gas Prices To Litres

If you're not used to U.S. gas prices, you might receive two shocks in a row at the gas station. The first is that, compared to many European countries, gas prices here are quite inexpensive. But gas is also usually dispensed by the gallon – a sharp departure from most non-U.K. and non-U.S. countries, where gas is dispensed by the liter. Happily, figuring the equivalent gas price in liters takes only one quick, easy conversion.

Gas prices in the U.S. are given by the gallon; to convert them to liters, you'll divide the price by the number of liters in a gallon, 3.78541. So if gas costs $3.50 per gallon, you have

\(\$3.50 ÷ 3.78541 = \$0.92460 \text{ per liter}\)

which would typically be rounded to $0.92 per liter.

If you've somehow ended up with gas prices in U.K. gallons, you convert these to liters too – but you must use a different conversion factor. Because there are 4.54609 liters in a U.K. gallon, you'll have to divide the price by 4.54609 to get its equivalent in liters. So if the current gas price is $5.79 per U.K. gallon, the price per liter would be:

\(\$5.79 ÷ 4.54609 = \$1.27362 \text{ per liter}\)

or, rounding to the nearest penny, $1.27 per liter.