1:64 scale - Wikipedia Review
1:64 scale is a traditional scale for models and miniatures, in which one unit (such as an inch or a centimeter) on the model represents 64 units on the actual object. It is also known as "three-sixteenths scale", since 3/16-inch represents a foot. A human is approximately 1 1⁄16 inches (27 mm) tall in 1:64 scale.