The common scale for action figures is 1:10, which corresponds to 1 inch of action figure representing 10 inches of the actual model. Realistic models employ a scale system, which is the ratio between the size of the model and the actual thing.
Mattel’s DC Universe brand of figures and Marvel’s Legends line of figures are examples of popular 1:10-scale action figures. Toy manufacturers standardise their figures by basing them on a model that is around 6 feet tall; this results in an action figure that is approximately 7 inches tall. The 1:10 scale is also often used for remote-controlled cars and bikes.