The standard depth of a kitchen counter typically ranges from 24 inches (61 cm) to 25 inches (63.5 cm). This measurement refers to the distance from the front edge of the counter to the back, and it allows for enough workspace for various kitchen activities. However, it's important to note that counter depths can vary depending on personal preference, available space, and the specific design of the kitchen. It's always recommended to consult with a professional or refer to local building codes and guidelines for precise measurements in your region.