Confirm Tire SizeWhere can I find my tire size?
Shopping for tires? Select tire size to proceed.
2020 Kia Optima S
Kia equips your vehicle with more than one possible size during production.
Please select the size installed on your vehicle from the choices below.
Original Equipment Wheel Diameter: 17"
P215/55R17Original Equipment Wheel Diameter: 18"
P235/45R18