195/65R14 vs 185/60R15
185/60R15 is 0.24 in (6.1 mm) shorter than 195/65R14, a −1.00% diameter difference. With the speedometer set for 195/65R14, an indicated 60 mph is 59.4 mph on 185/60R15.
Is this a safe swap?
Diameter difference −1.00%: within the ±3% guideline
By overall diameter alone, 185/60R15 falls inside the ±3% range commonly used as a guideline when replacing 195/65R14. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.
| Measurement | 195/65R14 | 185/60R15 | Difference | % diff |
|---|---|---|---|---|
| Overall diameter | 23.98 in (609.1 mm) | 23.74 in (603.0 mm) | −0.24 in (−6.1 mm) | −1.00% |
| Sidewall height | 4.99 in (126.8 mm) | 4.37 in (111.0 mm) | −0.62 in (−15.7 mm) | −12.43% |
| Section width | 7.68 in (195.0 mm) | 7.28 in (185.0 mm) | −0.39 in (−10.0 mm) | −5.13% |
| Circumference | 75.34 in (1,913.5 mm) | 74.58 in (1,894.4 mm) | −0.75 in (−19.2 mm) | −1.00% |
| Revolutions per mile | 841 | 850 | +9 | +1.01% |
| Indicated | Actual on 195/65R14 | Actual on 185/60R15 | Difference |
|---|---|---|---|
| 30 mph | 30.0 mph | 29.7 mph | −0.3 mph |
| 60 mph | 60.0 mph | 59.4 mph | −0.6 mph |
| 75 mph | 75.0 mph | 74.2 mph | −0.8 mph |
Ride-height change: 185/60R15 lowers the vehicle by 0.12 in (3.0 mm) at the axle (half the −6.1 mm diameter difference).
185/60R15 is 0.24 in shorter than 195/65R14 and 10 mm narrower, a 1.00% difference in overall diameter.
With the speedometer calibrated for 195/65R14, an indicated 60 mph is actually 59.4 mph on 185/60R15, and revolutions per mile change from 841 to 850.
185/60R15 mounts on a 15-inch wheel, a plus-1 fitment from the 14-inch wheel of 195/65R14.
Size pages
Other comparisons with 195/65R14
- 175/80R13 vs 195/65R14
- 175/65R14 vs 195/65R14
- 195/60R14 vs 195/65R14
- 185/65R14 vs 195/65R14
- 175/70R14 vs 195/65R14
- 205/60R14 vs 195/65R14
- 155/80R14 vs 195/65R14
- 195/65R14 vs 185/70R14
Other comparisons with 185/60R15
- 165/80R13 vs 185/60R15
- 175/80R13 vs 185/60R15
- 185/65R14 vs 185/60R15
- 175/70R14 vs 185/60R15
- 205/60R14 vs 185/60R15
- 155/80R14 vs 185/60R15
- 185/70R14 vs 185/60R15
- 185/55R15 vs 185/60R15
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.