The standard height for your cabinets depends on whether you’re asking about the uppers or lowers. The lowers should come up to where the top of the countertop sits at 36 inches from the floor. The uppers should sit an additional 18 inches (or a foot and a half) from the countertop. For sure, you don’t want less than 15 inches or more than 20 inches, as this will result in noticeably odd spacing to the average person’s eye.