Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-17 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.06 (788.8) | 28.88 (733.5) | -2.18 (-55.3) -7% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 97.56 (2478.09) | 90.72 (2304.36) | -6.84 (-173.73) -7% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 6.94 (176.25) | -0.09 (-2.25) -1.3% |
| Revolutions per mile (km) | 649.43 (403.54) | 698.39 (433.96) | 48.96 (30.42) 7.5% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.93 km/h) |
| 25 mph (40.23 km/h) | 23.25 mph (37.41 km/h) |
| 30 mph (48.28 km/h) | 27.9 mph (44.9 km/h) |
| 35 mph (56.33 km/h) | 32.55 mph (52.38 km/h) |
| 40 mph (64.37 km/h) | 37.2 mph (59.86 km/h) |
| 45 mph (72.42 km/h) | 41.85 mph (67.34 km/h) |
| 50 mph (80.47 km/h) | 46.49 mph (74.83 km/h) |
| 55 mph (88.51 km/h) | 51.14 mph (82.31 km/h) |
| 60 mph (96.56 km/h) | 55.79 mph (89.79 km/h) |
| 65 mph (104.61 km/h) | 60.44 mph (97.27 km/h) |
| 70 mph (112.65 km/h) | 65.09 mph (104.76 km/h) |
| 75 mph (120.7 km/h) | 69.74 mph (112.24 km/h) |
| 80 mph (128.75 km/h) | 74.39 mph (119.72 km/h) |
| 85 mph (136.79 km/h) | 79.04 mph (127.2 km/h) |
| 90 mph (144.84 km/h) | 83.69 mph (134.69 km/h) |
| 95 mph (152.89 km/h) | 88.34 mph (142.17 km/h) |
| 100 mph (160.93 km/h) | 92.99 mph (149.65 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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