How much does a Big Mac cost? Depending on the city and country you live in, the Big Mac on its own may cost around $2 to $6, but a meal can cost up to $8. McDonald’s, which serves 121 countries, has varying prices in countries across the globe. Refer to our table below to see what a Big Mac may cost in that country. Like the stock market, the Big Mac can vary in prices depending on the market conditions.