185/60R15
A 185/60R15 tire is 23.74 inches tall and 7.3 inches wide, with a 4.37-inch sidewall, mounted on a 15-inch wheel.
Common fitments: Civic, Corolla
Overall diameter
23.74″
603 mm
Sidewall height
4.37″
111.0 mm
Tread width
185 mm
7.3″
Circumference
74.58″
6.2 ft
Revs per mile
850
528 per km
Wheel diameter
15″
aspect ratio 60%
Cross-section
- Overall diameter
- 23.74″
- Sidewall (each side)
- 4.37″
- Wheel
- 15″
185/60R15 in inches and millimeters
Every dimension of a 185/60R15, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 23.74″ | 603 mm |
| Tread width | 7.3″ | 185 mm |
| Sidewall height | 4.37″ | 111.0 mm |
| Wheel diameter | 15″ | 381 mm |
| Circumference | 74.58″ | 1894 mm |
Nominal dimensions from the size code. A real tire varies by a few millimeters between manufacturers, and a loaded tire sits slightly shorter than its free diameter.
185/60R15 compared with other sizes
All 19 practical swaps involving 185/60R15 — diameter change, speedometer impact and a fit verdict for each.
185/60R15 → 175/65R15
175/65R15
Diameter −0.9% · This fits
175/65R15 → 185/60R15
175/65R15
Diameter +0.9% · This fits
185/65R15 → 185/60R15
185/65R15
Diameter +3.1% · Borderline. Check clearance first
195/60R15 → 185/60R15
195/60R15
Diameter +2.0% · This fits
185/55R16 → 185/60R15
185/55R16
Diameter +1.1% · This fits
195/65R15 → 185/60R15
195/65R15
Diameter +5.2% · Too big a jump
195/50R16 → 185/60R15
195/50R16
Diameter −0.3% · This fits
195/55R16 → 185/60R15
195/55R16
Diameter +3.0% · This fits
175/65R14 → 185/60R15
175/65R14
Diameter −3.3% · Borderline. Check clearance first
215/45R17 → 185/60R15
215/45R17
Diameter +3.7% · Borderline. Check clearance first
205/55R16 → 185/60R15
205/55R16
Diameter +4.8% · Borderline. Check clearance first
225/45R17 → 185/60R15
225/45R17
Diameter +5.2% · Too big a jump
185/60R15 → 185/65R15
185/65R15
Diameter −3.0% · This fits
185/60R15 → 195/60R15
195/60R15
Diameter −2.0% · This fits
185/60R15 → 195/65R15
195/65R15
Diameter −5.0% · Borderline. Check clearance first
185/60R15 → 185/55R16
185/55R16
Diameter −1.1% · This fits
185/60R15 → 195/50R16
195/50R16
Diameter +0.3% · This fits
185/60R15 → 195/55R16
195/55R16
Diameter −2.9% · This fits
185/60R15 → 175/65R14
175/65R14
Diameter +3.4% · Borderline. Check clearance first
Common questions
- What is 185/60R15 in inches?
- A 185/60R15 tire is 23.74 inches tall and 7.3 inches wide, with a 4.37-inch sidewall, mounted on a 15-inch wheel. In metric that is 603 mm tall and 185 mm wide. The circumference is 74.58 inches.
- How tall is a 185/60R15 tire?
- 23.74 inches, or 603 mm. That is the overall diameter, wheel included. It turns about 850 times per mile, which is what your speedometer counts.
- What do the numbers in 185/60R15 mean?
- 185 is the tread width in millimeters, 60 is the aspect ratio — the sidewall height as a percentage of the tread width — and 15 is the wheel diameter in inches. So the sidewall is 185 × 60% = 111.0 mm tall.