Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 285/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 31.46 (799.2) | 13.07 (331.9) 71% |
| Width inches (mm) | 4.92 (125) | 11.22 (285) | 6.3 (160) 128% |
| Circum. inches (mm) | 57.8 (1468.07) | 98.85 (2510.76) | 41.05 (1042.69) 71% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 6.73 (171) | 3.53 (89.75) 110.5% |
| Revolutions per mile (km) | 1096.23 (681.17) | 640.98 (398.28) | -455.26 (-282.88) -41.5% |
285/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 34.21 mph (55.05 km/h) |
| 25 mph (40.23 km/h) | 42.76 mph (68.81 km/h) |
| 30 mph (48.28 km/h) | 51.31 mph (82.57 km/h) |
| 35 mph (56.33 km/h) | 59.86 mph (96.33 km/h) |
| 40 mph (64.37 km/h) | 68.41 mph (110.1 km/h) |
| 45 mph (72.42 km/h) | 76.96 mph (123.86 km/h) |
| 50 mph (80.47 km/h) | 85.51 mph (137.62 km/h) |
| 55 mph (88.51 km/h) | 94.06 mph (151.38 km/h) |
| 60 mph (96.56 km/h) | 102.62 mph (165.14 km/h) |
| 65 mph (104.61 km/h) | 111.17 mph (178.91 km/h) |
| 70 mph (112.65 km/h) | 119.72 mph (192.67 km/h) |
| 75 mph (120.7 km/h) | 128.27 mph (206.43 km/h) |
| 80 mph (128.75 km/h) | 136.82 mph (220.19 km/h) |
| 85 mph (136.79 km/h) | 145.37 mph (233.95 km/h) |
| 90 mph (144.84 km/h) | 153.92 mph (247.71 km/h) |
| 95 mph (152.89 km/h) | 162.47 mph (261.48 km/h) |
| 100 mph (160.93 km/h) | 171.03 mph (275.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2041 | 2131 | 2228 | 2298 | 2374 | 2464 | 2589 | 2714 | 2853 | 2964 | 3165 | 3387 | 3561 | 3672 | 3734 | 3963 | 4283 | 4977 |
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