Choosing the right height for a swivel bar stool is essential for both comfort and functionality. Start by measuring the height of your counter or bar from the floor to the top. For kitchen counters measuring a standard 36 inches, stool seat heights should range between 24 to 26 inches. For bars standing between 40 to 42 inches, stool seat heights should be 28 to 30 inches. If your bar measures between 46 to 48 inches, choose stools around 34 inches tall from top of seat to floor. Lastly, for bars with a height of 47 to 50 inches, stools should be 36 to 37 inches in seat height. Aim for a space of 9 to 12 inches between the stool seat and the counter's underside to ensure ample legroom.