Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-18 | 215/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.55 (598.2) | 23.93 (607.7) | 0.37 (9.5) 1.6% |
| Width inches (mm) | 9.25 (235) | 8.46 (215) | -0.79 (-20) -8.5% |
| Circum. inches (mm) | 73.99 (1879.3) | 75.16 (1909.15) | 1.18 (29.85) 1.6% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 2.96 (75.25) | 0.19 (4.75) 6.7% |
| Revolutions per mile (km) | 856.35 (532.11) | 842.97 (523.79) | -13.39 (-8.32) -1.6% |
215/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.32 mph (32.7 km/h) |
| 25 mph (40.23 km/h) | 25.4 mph (40.87 km/h) |
| 30 mph (48.28 km/h) | 30.48 mph (49.05 km/h) |
| 35 mph (56.33 km/h) | 35.56 mph (57.22 km/h) |
| 40 mph (64.37 km/h) | 40.64 mph (65.4 km/h) |
| 45 mph (72.42 km/h) | 45.71 mph (73.57 km/h) |
| 50 mph (80.47 km/h) | 50.79 mph (81.75 km/h) |
| 55 mph (88.51 km/h) | 55.87 mph (89.92 km/h) |
| 60 mph (96.56 km/h) | 60.95 mph (98.09 km/h) |
| 65 mph (104.61 km/h) | 66.03 mph (106.27 km/h) |
| 70 mph (112.65 km/h) | 71.11 mph (114.44 km/h) |
| 75 mph (120.7 km/h) | 76.19 mph (122.62 km/h) |
| 80 mph (128.75 km/h) | 81.27 mph (130.79 km/h) |
| 85 mph (136.79 km/h) | 86.35 mph (138.97 km/h) |
| 90 mph (144.84 km/h) | 91.43 mph (147.14 km/h) |
| 95 mph (152.89 km/h) | 96.51 mph (155.32 km/h) |
| 100 mph (160.93 km/h) | 101.59 mph (163.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2145 | 2492 | 2684 | 2802 | 2930 | 3022 | 3122 | 3241 | 3405 | 3569 | 3752 | 3898 | 4163 | 4455 | 4683 | 4829 | 4911 | 5212 | 5632 | 6545 |
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