Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/40-18 | 235/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.4 (645.2) | 24.48 (621.7) | -0.93 (-23.5) -3.6% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 79.8 (2026.96) | 76.89 (1953.13) | -2.91 (-73.83) -3.6% |
| Sidewall Height inches (mm) | 3.7 (94) | 3.24 (82.25) | -0.46 (-11.75) -12.5% |
| Revolutions per mile (km) | 793.97 (493.35) | 823.98 (512) | 30.01 (18.65) 3.8% |
235/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.27 mph (31.01 km/h) |
| 25 mph (40.23 km/h) | 24.09 mph (38.77 km/h) |
| 30 mph (48.28 km/h) | 28.91 mph (46.52 km/h) |
| 35 mph (56.33 km/h) | 33.73 mph (54.28 km/h) |
| 40 mph (64.37 km/h) | 38.54 mph (62.03 km/h) |
| 45 mph (72.42 km/h) | 43.36 mph (69.78 km/h) |
| 50 mph (80.47 km/h) | 48.18 mph (77.54 km/h) |
| 55 mph (88.51 km/h) | 53 mph (85.29 km/h) |
| 60 mph (96.56 km/h) | 57.81 mph (93.04 km/h) |
| 65 mph (104.61 km/h) | 62.63 mph (100.8 km/h) |
| 70 mph (112.65 km/h) | 67.45 mph (108.55 km/h) |
| 75 mph (120.7 km/h) | 72.27 mph (116.3 km/h) |
| 80 mph (128.75 km/h) | 77.09 mph (124.06 km/h) |
| 85 mph (136.79 km/h) | 81.9 mph (131.81 km/h) |
| 90 mph (144.84 km/h) | 86.72 mph (139.57 km/h) |
| 95 mph (152.89 km/h) | 91.54 mph (147.32 km/h) |
| 100 mph (160.93 km/h) | 96.36 mph (155.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2097 | 2436 | 2623 | 2739 | 2864 | 2953 | 3052 | 3168 | 3328 | 3489 | 3667 | 3810 | 4069 | 4354 | 4577 | 4720 | 4801 | 5095 | 5505 | 6398 |
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