About 245/45R21 tires
245/45R21 means a 245 mm section width, a sidewall 45 percent of that (110 mm) and a 21 inch rim, which works out to 29.7 inches tall. Whether 245/45R21 works comes down to the wheel width it mounts on and how far it lands from the height the car left the factory with.
4 lines carry 245/45R21, from 2 brands (Michelin and Pirelli). By type that is 3 all season and 1 performance summer. The tire has to stay near your car's stock height and mount on your wheel width, so pick the car and the wheel set and the page keeps only the 245/45R21 lines that do both.
Common questions
- What does 245/45R21 mean?
- 245 is the section width in millimeters, 45 is the sidewall height as a percent of that width (110 mm here), R means radial and 21 is the wheel diameter in inches. Overall the tire stands 29.7 inches tall.
- Will 245/45R21 fit your car?
- Pick your year, make and model and the tires page answers it for yours. The wheel width has to carry the section width and the overall height has to stay near where the car started.
- What wheel width fits 245/45R21?
- The tire makers list 6 to 9.5 inch rim widths across the 245 mm sizes we carry, and each product page shows the range for that line. Pick a 21 inch wheel set and the tire step checks the width for you.
