Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-18 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.18 (715.7) | 28.88 (733.5) | 0.7 (17.8) 2.5% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 88.52 (2248.44) | 90.72 (2304.36) | 2.2 (55.92) 2.5% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 6.94 (176.25) | 1.85 (47) 36.4% |
| Revolutions per mile (km) | 715.76 (444.75) | 698.39 (433.96) | -17.37 (-10.79) -2.4% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.5 mph (32.99 km/h) |
| 25 mph (40.23 km/h) | 25.62 mph (41.23 km/h) |
| 30 mph (48.28 km/h) | 30.75 mph (49.48 km/h) |
| 35 mph (56.33 km/h) | 35.87 mph (57.73 km/h) |
| 40 mph (64.37 km/h) | 40.99 mph (65.97 km/h) |
| 45 mph (72.42 km/h) | 46.12 mph (74.22 km/h) |
| 50 mph (80.47 km/h) | 51.24 mph (82.47 km/h) |
| 55 mph (88.51 km/h) | 56.37 mph (90.72 km/h) |
| 60 mph (96.56 km/h) | 61.49 mph (98.96 km/h) |
| 65 mph (104.61 km/h) | 66.62 mph (107.21 km/h) |
| 70 mph (112.65 km/h) | 71.74 mph (115.46 km/h) |
| 75 mph (120.7 km/h) | 76.87 mph (123.7 km/h) |
| 80 mph (128.75 km/h) | 81.99 mph (131.95 km/h) |
| 85 mph (136.79 km/h) | 87.11 mph (140.2 km/h) |
| 90 mph (144.84 km/h) | 92.24 mph (148.44 km/h) |
| 95 mph (152.89 km/h) | 97.36 mph (156.69 km/h) |
| 100 mph (160.93 km/h) | 102.49 mph (164.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1777 | 2065 | 2223 | 2322 | 2428 | 2503 | 2586 | 2685 | 2821 | 2957 | 3108 | 3229 | 3449 | 3691 | 3880 | 4001 | 4069 | 4318 | 4666 | 5423 |
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