In Canada the price of gasoline (petrol) is expressed in Canadian dollars per litre and includes all applicable taxes.

You can find out prices at various gas stations in a given town by consulting Gas Buddy (which needs converting from U.S.$/gallon) or (which is in CAN$/litre).   

Converting gas prices to other currencies

Using Google Calculator

Google can do most of the math for you automatically.  Look up a price on Gas Buddy, then click one of the following links:

These links assume gas prices of C$1.00 per litre.  For a different gas price, click the link above, then change the price ("1.00 CAD") in the box at the top of the page and click Search.

Quick mental conversion

On the road, a short cut for converting the Canadian price into American dollars per gallon is to discount the Canadian price by 10%, then multiply by 4, as follows:

C$1.00 per litre  - 10%  =  U.S.$0.90 per litre  x  4  =  U.S.$3.60 per U.S. gallon

Long calculation

This foreign exchange website reveals that C$1.00 is worth U.S.$0.88 at present (November 8th, 2014) and 

1 U.S. gallon = 3.79 litres

The detailed conversion formula is:

(Price of gas per litre, in C$)  x  (current value of C$1.00, in U.S.$) x (3.79 litres per U.S. gallon) =  price in U.S. dollars for one U.S. gallon

This can also be expressed as:

C$ ?        X U.S.$ ?      X  3.79 litres   = ? $U.S.
 1 litre  C$1  1 U.S. gal 1 U.S. gal



So, in the above example:

C$1.00 per litre  x  0.88  x  3.79  =  U.S.$3.23 per U.S. gallon

Fuel Stops

Visitors to Canada from more densely-populated countries may be surprised to find that some sections of heavily-travelled Canadian highway can have as much as 100 km (60 miles) or more between gas stations. It's unwise to assume that there will always be a gas station nearby when you need to refuel. If you are doing substantial amounts of highway driving, you need to either plan your fuel stops as part of your route planning, or consider refuelling when your gas gauge reaches the half-full mark.