Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/60-18 | 195/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.32 (643.2) | 27.98 (710.7) | 2.66 (67.5) 10.5% |
| Width inches (mm) | 6.1 (155) | 7.68 (195) | 1.57 (40) 25.8% |
| Circum. inches (mm) | 79.55 (2020.67) | 87.9 (2232.73) | 8.35 (212.06) 10.5% |
| Sidewall Height inches (mm) | 3.66 (93) | 4.99 (126.75) | 1.33 (33.75) 36.3% |
| Revolutions per mile (km) | 796.44 (494.88) | 720.8 (447.88) | -75.64 (-47) -9.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.1 mph (35.56 km/h) |
| 25 mph (40.23 km/h) | 27.62 mph (44.46 km/h) |
| 30 mph (48.28 km/h) | 33.15 mph (53.35 km/h) |
| 35 mph (56.33 km/h) | 38.67 mph (62.24 km/h) |
| 40 mph (64.37 km/h) | 44.2 mph (71.13 km/h) |
| 45 mph (72.42 km/h) | 49.72 mph (80.02 km/h) |
| 50 mph (80.47 km/h) | 55.25 mph (88.91 km/h) |
| 55 mph (88.51 km/h) | 60.77 mph (97.8 km/h) |
| 60 mph (96.56 km/h) | 66.3 mph (106.69 km/h) |
| 65 mph (104.61 km/h) | 71.82 mph (115.59 km/h) |
| 70 mph (112.65 km/h) | 77.35 mph (124.48 km/h) |
| 75 mph (120.7 km/h) | 82.87 mph (133.37 km/h) |
| 80 mph (128.75 km/h) | 88.4 mph (142.26 km/h) |
| 85 mph (136.79 km/h) | 93.92 mph (151.15 km/h) |
| 90 mph (144.84 km/h) | 99.44 mph (160.04 km/h) |
| 95 mph (152.89 km/h) | 104.97 mph (168.93 km/h) |
| 100 mph (160.93 km/h) | 110.49 mph (177.82 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1834 | 2131 | 2295 | 2396 | 2506 | 2584 | 2669 | 2771 | 2911 | 3052 | 3208 | 3333 | 3559 | 3809 | 4004 | 4129 | 4199 | 4457 | 4816 | 5597 |
Better Fuel Economy Factory Ratios Increased Power
