If you're trying to figure out how many gallons are in 4 liters, you’ll need to know the basic conversion:
1 liter = 0.26417 U.S. gallons.
So, to convert 4 liters to gallons, you just multiply:
4 liters × 0.26417 = 1.05668 gallons
Rounded off, that's about 1.06 gallons.