The most common cooktop dimensions are 30 inches in width by 25 inches in depth, according to SFGate. Most modern stoves stand 30 inches high. Narrower stoves for apartments and smaller kitchens measure about 20 inches wide.
Dimensions of stoves and cooktops generally conform to industry standards for residential homes to allow builders and homeowners to plan the overall arrangement of kitchens, including layouts of countertops according to predictable dimensions. Average widths tend to be the same whether the appliance is only a stove top or a combination stove and oven. Scaled-down versions of typical cooktops are manufactured for use in apartments, town homes and other smaller kitchens.