Kitchen sinks usually measure 22 to 25 inches from front to back, 30 to 33 inches in width and 8 to 10 inches in depth. The average size of a kitchen sink is 22 by 30 by 8 inches. Kitchen sink sizes vary depending on the number of bowls.
Kitchen sinks have an average size of 22 by 30 inches because most countertops and cabinets have a front to back measurement of 24 inches. However, sinks of a larger front to back measurement can fit in countertops that measure 30 inches and above. Usually, rooms smaller than 150 square feet have single bowl kitchen sinks with dimensions of 22 by 24 inches.
Kitchen sinks with a single bowl can measure up to 33 inches in width. Those with a double bowl can measure 48 inches in width, whereas the triple bowl sinks can span 60 inches wide. Sinks with a narrow trough tend to be as wide as 50 inches or more but measure between 8 and 14 inches from front to back.
Kitchen sinks that have a depth of 10 inches are suitable for soaking pans and pots, whereas shallower sinks are easier to reach, particularly for shorter people. The latter are more suited for preparation work such as washing dishes and cleaning food items.