Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 31/10.5-15 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.98 (786.84) | 28.88 (733.5) | -2.1 (-53.34) -6.8% |
| Width inches (mm) | 10.51 (267) | 9.25 (235) | -1.26 (-32) -12% |
| Circum. inches (mm) | 97.32 (2471.93) | 90.72 (2304.36) | -6.6 (-167.57) -6.8% |
| Sidewall Height inches (mm) | 7.99 (202.92) | 6.94 (176.25) | -1.05 (-26.67) -13.1% |
| Revolutions per mile (km) | 651.05 (404.54) | 698.39 (433.96) | 47.34 (29.42) 7.3% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.64 mph (30 km/h) |
| 25 mph (40.23 km/h) | 23.31 mph (37.51 km/h) |
| 30 mph (48.28 km/h) | 27.97 mph (45.01 km/h) |
| 35 mph (56.33 km/h) | 32.63 mph (52.51 km/h) |
| 40 mph (64.37 km/h) | 37.29 mph (60.01 km/h) |
| 45 mph (72.42 km/h) | 41.95 mph (67.51 km/h) |
| 50 mph (80.47 km/h) | 46.61 mph (75.01 km/h) |
| 55 mph (88.51 km/h) | 51.27 mph (82.51 km/h) |
| 60 mph (96.56 km/h) | 55.93 mph (90.01 km/h) |
| 65 mph (104.61 km/h) | 60.59 mph (97.52 km/h) |
| 70 mph (112.65 km/h) | 65.25 mph (105.02 km/h) |
| 75 mph (120.7 km/h) | 69.92 mph (112.52 km/h) |
| 80 mph (128.75 km/h) | 74.58 mph (120.02 km/h) |
| 85 mph (136.79 km/h) | 79.24 mph (127.52 km/h) |
| 90 mph (144.84 km/h) | 83.9 mph (135.02 km/h) |
| 95 mph (152.89 km/h) | 88.56 mph (142.52 km/h) |
| 100 mph (160.93 km/h) | 93.22 mph (150.02 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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