Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-18 | 255/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.55 (598.2) | 25.03 (635.7) | 1.48 (37.5) 6.3% |
| Width inches (mm) | 9.25 (235) | 10.04 (255) | 0.79 (20) 8.5% |
| Circum. inches (mm) | 73.99 (1879.3) | 78.63 (1997.11) | 4.64 (117.81) 6.3% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 3.51 (89.25) | 0.74 (18.75) 26.6% |
| Revolutions per mile (km) | 856.35 (532.11) | 805.84 (500.72) | -50.52 (-31.39) -5.9% |
255/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.25 mph (34.2 km/h) |
| 25 mph (40.23 km/h) | 26.57 mph (42.76 km/h) |
| 30 mph (48.28 km/h) | 31.88 mph (51.31 km/h) |
| 35 mph (56.33 km/h) | 37.19 mph (59.86 km/h) |
| 40 mph (64.37 km/h) | 42.51 mph (68.41 km/h) |
| 45 mph (72.42 km/h) | 47.82 mph (76.96 km/h) |
| 50 mph (80.47 km/h) | 53.13 mph (85.51 km/h) |
| 55 mph (88.51 km/h) | 58.45 mph (94.06 km/h) |
| 60 mph (96.56 km/h) | 63.76 mph (102.61 km/h) |
| 65 mph (104.61 km/h) | 69.07 mph (111.17 km/h) |
| 70 mph (112.65 km/h) | 74.39 mph (119.72 km/h) |
| 75 mph (120.7 km/h) | 79.7 mph (128.27 km/h) |
| 80 mph (128.75 km/h) | 85.02 mph (136.82 km/h) |
| 85 mph (136.79 km/h) | 90.33 mph (145.37 km/h) |
| 90 mph (144.84 km/h) | 95.64 mph (153.92 km/h) |
| 95 mph (152.89 km/h) | 100.96 mph (162.47 km/h) |
| 100 mph (160.93 km/h) | 106.27 mph (171.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2051 | 2382 | 2566 | 2679 | 2801 | 2888 | 2984 | 3098 | 3255 | 3412 | 3587 | 3726 | 3979 | 4258 | 4477 | 4616 | 4695 | 4983 | 5384 | 6257 |
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