185/60R15
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 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% · Good fit
175/65R15 → 185/60R15
175/65R15
Diameter +0.9% · Good fit
185/65R15 → 185/60R15
185/65R15
Diameter +3.1% · Marginal fit — proceed with care
195/60R15 → 185/60R15
195/60R15
Diameter +2.0% · Good fit
185/55R16 → 185/60R15
185/55R16
Diameter +1.1% · Good fit
195/65R15 → 185/60R15
195/65R15
Diameter +5.2% · Not recommended
195/50R16 → 185/60R15
195/50R16
Diameter −0.3% · Good fit
195/55R16 → 185/60R15
195/55R16
Diameter +3.0% · Good fit
175/65R14 → 185/60R15
175/65R14
Diameter −3.3% · Marginal fit — proceed with care
215/45R17 → 185/60R15
215/45R17
Diameter +3.7% · Marginal fit — proceed with care
205/55R16 → 185/60R15
205/55R16
Diameter +4.8% · Marginal fit — proceed with care
225/45R17 → 185/60R15
225/45R17
Diameter +5.2% · Not recommended
185/60R15 → 185/65R15
185/65R15
Diameter −3.0% · Good fit
185/60R15 → 195/60R15
195/60R15
Diameter −2.0% · Good fit
185/60R15 → 195/65R15
195/65R15
Diameter −5.0% · Marginal fit — proceed with care
185/60R15 → 185/55R16
185/55R16
Diameter −1.1% · Good fit
185/60R15 → 195/50R16
195/50R16
Diameter +0.3% · Good fit
185/60R15 → 195/55R16
195/55R16
Diameter −2.9% · Good fit
185/60R15 → 175/65R14
175/65R14
Diameter +3.4% · Marginal fit — proceed with care
Common questions
- What is the overall diameter of a 185/60R15 tire?
- A 185/60R15 tire is about 23.74″ (603 mm) in overall diameter, with a sidewall height of 111.0 mm and a circumference of 74.58″.
- How many revolutions per mile does a 185/60R15 tire turn?
- A 185/60R15 turns roughly 850 revolutions per mile (528 per kilometre). This is the number that determines speedometer and odometer accuracy when you change tire size.
- What do the numbers in 185/60R15 mean?
- 185 is the tread width in millimetres, 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.