What is the difference in feet between first base in the grandstand on the major league field?

The distance from first base to the grandstand in a Major League Baseball field can vary significantly depending on the stadium design. Generally, first base is located 90 feet from home plate, while the grandstand's distance from the field can range from about 60 to 150 feet or more, depending on the specific layout of the ballpark. Therefore, the difference in feet between first base and the grandstand will depend on these factors.