185/65R15 Tire Size
Dimensions of a 185/65R15 tire in inches and millimeters, with equivalent and plus sizes.
185/65R15 dimensions
A 185/65R15 tire is 185 mm wide with a sidewall that is 65% of the width (120 mm), mounted on a 15-inch rim. Its overall diameter is about 24.47 inches (622 mm), so it is roughly a 24.5-inch tall tire.
| Overall diameter | 24.47 in | 622 mm |
|---|---|---|
| Section width | 7.28 in | 185 mm |
| Sidewall height | 4.73 in | 120.2 mm |
| Rim diameter | 15 in | 381 mm |
| Circumference | 76.9 in | 1952 mm |
| Revolutions | 824 per mile | 512 per km |
Equivalent sizes on a 15-inch rim
These sizes stay within ±3% of the 185/65R15 diameter on the same rim — the range most tire shops use. Not every size is made in every tire model, and only sizes approved for your vehicle (with the right load and speed rating) should be fitted.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 175/70R15 | 24.65 in | 626 mm | +0.7% |
| 205/60R15 | 24.69 in | 627 mm | +0.9% |
| 195/60R15 | 24.21 in | 615 mm | -1.0% |
| 165/75R15 | 24.74 in | 628 mm | +1.1% |
| 165/70R15 | 24.09 in | 612 mm | -1.5% |
| 175/65R15 | 23.96 in | 608 mm | -2.1% |
| 195/65R15 | 24.98 in | 634 mm | +2.1% |
| 205/55R15 | 23.88 in | 606 mm | -2.4% |
| 185/60R15 | 23.74 in | 603 mm | -3.0% |
| 185/70R15 | 25.20 in | 640 mm | +3.0% |
Plus and minus sizes
Changing the rim size? These options on 14-, 16- and 17-inch rims keep the overall diameter within ±3%.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 215/50R16 | 24.46 in | 621 mm | -0.0% |
| 205/65R14 | 24.49 in | 622 mm | +0.1% |
| 195/55R16 | 24.44 in | 621 mm | -0.1% |
| 175/55R17 | 24.58 in | 624 mm | +0.5% |
| 175/75R14 | 24.33 in | 618 mm | -0.5% |
| 215/45R17 | 24.62 in | 625 mm | +0.6% |
| 185/50R17 | 24.28 in | 617 mm | -0.8% |
| 175/60R16 | 24.27 in | 616 mm | -0.8% |
| 205/45R17 | 24.26 in | 616 mm | -0.8% |
| 195/50R17 | 24.68 in | 627 mm | +0.9% |
Compare 185/65R15 with another size →
Frequently asked questions
How tall is a 185/65R15 tire?
About 24.47 inches (622 mm) in overall diameter.
How wide is a 185/65R15 tire?
The section width is 185 mm, about 7.3 inches.
What size can replace 185/65R15?
On the same rim, 175/70R15 is the closest size (+0.7% diameter). Use only sizes approved for your vehicle.
How many revolutions per mile does a 185/65R15 tire make?
About 824 revolutions per mile (512 per km).
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