185/60R15 vs 195/60R15 Side-by-side tire size comparison with specs and compatibility
This tire swap is within the safe 3% diameter threshold. It should not cause issues with speedometer accuracy, ABS, or traction control systems.
Full Specifications Comparison
| Specification | 185/60R15 | 195/60R15 | Difference |
|---|---|---|---|
| Overall Diameter | 603 mm (23.7") | 615 mm (24.2") | +12 mm |
| Section Width | 185 mm (7.3") | 195 mm (7.7") | +10 mm |
| Sidewall Height | 111 mm | 117 mm | +6 mm |
| Circumference | 1894.4 mm | 1932.1 mm | +37.7 mm |
| Revolutions/Mile | 850 | 833 | -17 |
| Aspect Ratio | 60% | 60% | 0% |
| Rim Diameter | 15" | 15" | 0" |
Key Impact Summary
Speedometer Correction Table
When switching from 185/60R15 to 195/60R15, your speedometer will under-read. Here is the correction at common speeds:
| Speedometer Shows | Actual Speed (mph) | Difference |
|---|---|---|
| 30 mph | 30.6 mph | +0.6 mph |
| 40 mph | 40.8 mph | +0.8 mph |
| 50 mph | 51 mph | +1 mph |
| 60 mph | 61.2 mph | +1.2 mph |
| 70 mph | 71.4 mph | +1.4 mph |
| 80 mph | 81.6 mph | +1.6 mph |
| 90 mph | 91.8 mph | +1.8 mph |
| 100 mph | 102 mph | +2 mph |
| 110 mph | 112.2 mph | +2.2 mph |
| 120 mph | 122.4 mph | +2.4 mph |
What This Swap Means
Wider tires (195/60R15): The 10mm wider contact patch provides better grip in dry conditions and improved cornering stability. However, wider tires increase rolling resistance slightly, which may affect fuel economy by 1-2%. They are also more susceptible to hydroplaning in wet conditions.
Taller sidewall: The 6.0mm increase in sidewall height provides a more comfortable ride by absorbing more road imperfections. Taller sidewalls also offer better protection against pothole damage to wheels. The trade-off is slightly less responsive steering feel.
Ground clearance: Increases by 6mm, providing slightly better approach angles for off-road driving and speed bump clearance.