225/45R15 tire size
A 225/45R15 tire stands 23.0 inches tall and 8.9 inches wide, with a 4.0-inch sidewall on a 15-inch rim.
- Overall height
- 23.0 in584 mm
- Section width
- 8.9 in225 mm
- Sidewall height
- 4.0 in101 mm
- Rim diameter
- 15 in381 mm
- Circumference
- 72.2 in1833 mm
- Revolutions per mile
- 878546 per km
- Inch size
- 23.0x8.9R15
Compare it with any other size in the tire size calculator.
Sizes you can swap to
These 15-inch sizes are within two width steps and 3% of a 225/45R15's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 205/50R15, 0.4% taller (0.10 in). Wider sizes also need room in the wheel well and a rim width that suits them.
Plus and minus sizes
Changing rim size means changing the sidewall to keep the same overall height. On 13-inch or 14-inch or 16-inch or 17-inch rims, these are the closest matches to a 225/45R15.
Other 15-inch sizes near 225/45R15
225 mm wide, other sidewalls
45 series, other widths
See the other sizes for this rim on 15-inch tire sizes.
Shop 225/45R15 tires
These open each store's own list of 225/45R15 tires, where you can filter by type, load and speed rating.
225/45R15 questions
How tall is a 225/45R15 tire?
About 23.0 inches (584 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.
What does 225/45R15 mean?
225 is the section width in millimetres (8.9 in). 45 means the sidewall is 45% of that width: 101 mm, or 4.0 in. R means radial construction, and 15 is the rim diameter in inches.
Can I use 205/50R15 instead of 225/45R15?
205/50R15 is 0.4% taller (0.10 in) and 20 mm narrower, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.3 mph.
What is 225/45R15 in inches?
In inch terms it is 23.0x8.9R15: 23.0 inches tall, 8.9 inches wide, for a 15-inch rim.
How many revolutions per mile does a 225/45R15 make?
About 878 turns per mile, worked out from its unloaded circumference of 72.2 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.