Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/35-18 | 215/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.7) | 24.77 (629.2) | 1.12 (28.5) 4.7% |
| Width inches (mm) | 8.07 (205) | 8.46 (215) | 0.39 (10) 4.9% |
| Circum. inches (mm) | 74.3 (1887.15) | 77.82 (1976.69) | 3.53 (89.54) 4.7% |
| Sidewall Height inches (mm) | 2.82 (71.75) | 3.39 (86) | 0.56 (14.25) 19.9% |
| Revolutions per mile (km) | 852.79 (529.9) | 814.16 (505.9) | -38.63 (-24) -4.5% |
215/40-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.71 km/h) |
| 25 mph (40.23 km/h) | 26.19 mph (42.14 km/h) |
| 30 mph (48.28 km/h) | 31.42 mph (50.57 km/h) |
| 35 mph (56.33 km/h) | 36.66 mph (59 km/h) |
| 40 mph (64.37 km/h) | 41.9 mph (67.43 km/h) |
| 45 mph (72.42 km/h) | 47.14 mph (75.86 km/h) |
| 50 mph (80.47 km/h) | 52.37 mph (84.29 km/h) |
| 55 mph (88.51 km/h) | 57.61 mph (92.71 km/h) |
| 60 mph (96.56 km/h) | 62.85 mph (101.14 km/h) |
| 65 mph (104.61 km/h) | 68.08 mph (109.57 km/h) |
| 70 mph (112.65 km/h) | 73.32 mph (118 km/h) |
| 75 mph (120.7 km/h) | 78.56 mph (126.43 km/h) |
| 80 mph (128.75 km/h) | 83.8 mph (134.86 km/h) |
| 85 mph (136.79 km/h) | 89.03 mph (143.28 km/h) |
| 90 mph (144.84 km/h) | 94.27 mph (151.71 km/h) |
| 95 mph (152.89 km/h) | 99.51 mph (160.14 km/h) |
| 100 mph (160.93 km/h) | 104.74 mph (168.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2072 | 2407 | 2592 | 2707 | 2830 | 2918 | 3015 | 3130 | 3289 | 3447 | 3624 | 3765 | 4020 | 4302 | 4523 | 4664 | 4743 | 5034 | 5440 | 6321 |
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