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 tall (27 mm) in 1:64 scale. The scale originated by halving the very common 1:32 scale, which was known as "standard size" in some hobbies.
This scale became successful because of its relative size in comparison to other toys, the fact that it is a derivative of 1/16 scale, and because they are easily held by small hands. The 1/64 scale models will generally have less detail than a 1/16 scale models. Moreover, "1/64 coincides with the S scale of model railroading, part of the consideration of why 1/64 became an established size."
Currently, 1:64 scale is most commonly used for automobile and other vehicle models, but it is also a popular scale for model railroads and toy trains, and has been used for ship models, also. In addition, 28mm military and fantasy figures are a popular size for tabletop gaming, and they are sometimes scaled out to 1:64, although opinion on the actual scale of 28mm range from 1:48 to 1:64.