A number of foreign currencies have dropped against the U.S. Dollar, including the Russian Ruble, Argentinian Peso, and the South African Rand.

The Economist released its annual Big Mac Index, a great guide based on the legendary fast food burger, to determine where it’s most—and least—expensive to travel.

Let’s take a look at the top five countries where a Big Mac is most expensive.

Switzerland: $6.44

Sweden: $5.23

Norway: $5.21

United States: $4.93

Denmark: $4.32

How about where the Big Mac is least expensive?

Malaysia: $1.82

South Africa: $1.77

Ukraine: $1.54

Russia: $1.53

Venezuela: $0.66

This also relates very well to the cost of other goods and services, ranging from a tube of toothpaste to a cab ride, and is a great and helpful indicator of what you’re actually going to spend in these countries.

For more information about current exchange rates, check out:

• The U.S. Dollar Is Still Strong Worldwide
• How to Get the Best Exchange Rates
• Peter Greenberg’s Hot Destinations 2016: Where the Dollar is Strong

Keep reading for more travel tips.