US$2.99/gal / 3.79 liters/gallon = US$0.79/liter
US$0.79 = C$1.13/liter
The gas station on my corner is advertising gas at C$1.59
Let’s do the math backwards
C$1.59/liter = US$1.11/liter
US$1.11/liter x 3.79 liters/gal = US$4.21/gal
US$2.99/gal / 3.79 liters/gallon = US$0.79/liter
US$0.79 = C$1.13/liter
The gas station on my corner is advertising gas at C$1.59
Let’s do the math backwards
C$1.59/liter = US$1.11/liter
US$1.11/liter x 3.79 liters/gal = US$4.21/gal