A Big Mac averages $5.91 across the U.S. and shows as $5.99 on most menu boards. A McChicken averages $2.86, a 10-piece McNuggets about $5.79, and a medium World Famous Fries $3.56. McDonald’s is about 95% franchised, so the operator who owns your local store sets the final price. Treat every number here as an … Read more — McDonald’s Menu Prices USA