Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/65-18 | 245/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.05 (788.7) | 29.57 (751.2) | -1.48 (-37.5) -4.8% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 97.55 (2477.77) | 92.91 (2359.96) | -4.64 (-117.81) -4.8% |
| Sidewall Height inches (mm) | 6.53 (165.75) | 5.79 (147) | -0.74 (-18.75) -11.3% |
| Revolutions per mile (km) | 649.51 (403.59) | 681.94 (423.73) | 32.42 (20.15) 5% |
245/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.05 mph (30.66 km/h) |
| 25 mph (40.23 km/h) | 23.81 mph (38.32 km/h) |
| 30 mph (48.28 km/h) | 28.57 mph (45.98 km/h) |
| 35 mph (56.33 km/h) | 33.34 mph (53.65 km/h) |
| 40 mph (64.37 km/h) | 38.1 mph (61.31 km/h) |
| 45 mph (72.42 km/h) | 42.86 mph (68.98 km/h) |
| 50 mph (80.47 km/h) | 47.62 mph (76.64 km/h) |
| 55 mph (88.51 km/h) | 52.38 mph (84.31 km/h) |
| 60 mph (96.56 km/h) | 57.15 mph (91.97 km/h) |
| 65 mph (104.61 km/h) | 61.91 mph (99.63 km/h) |
| 70 mph (112.65 km/h) | 66.67 mph (107.3 km/h) |
| 75 mph (120.7 km/h) | 71.43 mph (114.96 km/h) |
| 80 mph (128.75 km/h) | 76.2 mph (122.63 km/h) |
| 85 mph (136.79 km/h) | 80.96 mph (130.29 km/h) |
| 90 mph (144.84 km/h) | 85.72 mph (137.95 km/h) |
| 95 mph (152.89 km/h) | 90.48 mph (145.62 km/h) |
| 100 mph (160.93 km/h) | 95.25 mph (153.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1735 | 2016 | 2171 | 2267 | 2370 | 2444 | 2526 | 2622 | 2754 | 2887 | 3035 | 3153 | 3367 | 3604 | 3788 | 3906 | 3973 | 4217 | 4556 | 5295 |
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