**Something or someone that is 48 inches in height is exactly 4 feet tall.** Using the metric system to measure height, 48 inches is equal to 121.92 centimeters.

A height of 48 inches is in the normal range for both boys and girls between the ages of 6 and 8. By age 7, the average height of both boys and girls is exactly 48 inches. Boys should be between 43 and 50 inches at age 6, while girls should be between 43 and 49 inches. By age 8, boy should be between 47 and 55 inches, while girls should be between 47 and 54 inches.