Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/75-18 | 315/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.65 (854.7) | 35.36 (898.2) | 1.71 (43.5) 5.1% |
| Width inches (mm) | 10.43 (265) | 12.4 (315) | 1.97 (50) 18.9% |
| Circum. inches (mm) | 105.71 (2685.12) | 111.09 (2821.78) | 5.38 (136.66) 5.1% |
| Sidewall Height inches (mm) | 7.82 (198.75) | 8.68 (220.5) | 0.86 (21.75) 10.9% |
| Revolutions per mile (km) | 599.36 (372.42) | 570.33 (354.39) | -29.03 (-18.04) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.83 km/h) |
| 25 mph (40.23 km/h) | 26.27 mph (42.28 km/h) |
| 30 mph (48.28 km/h) | 31.53 mph (50.74 km/h) |
| 35 mph (56.33 km/h) | 36.78 mph (59.19 km/h) |
| 40 mph (64.37 km/h) | 42.04 mph (67.65 km/h) |
| 45 mph (72.42 km/h) | 47.29 mph (76.11 km/h) |
| 50 mph (80.47 km/h) | 52.54 mph (84.56 km/h) |
| 55 mph (88.51 km/h) | 57.8 mph (93.02 km/h) |
| 60 mph (96.56 km/h) | 63.05 mph (101.48 km/h) |
| 65 mph (104.61 km/h) | 68.31 mph (109.93 km/h) |
| 70 mph (112.65 km/h) | 73.56 mph (118.39 km/h) |
| 75 mph (120.7 km/h) | 78.82 mph (126.84 km/h) |
| 80 mph (128.75 km/h) | 84.07 mph (135.3 km/h) |
| 85 mph (136.79 km/h) | 89.33 mph (143.76 km/h) |
| 90 mph (144.84 km/h) | 94.58 mph (152.21 km/h) |
| 95 mph (152.89 km/h) | 99.84 mph (160.67 km/h) |
| 100 mph (160.93 km/h) | 105.09 mph (169.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1451 | 1686 | 1816 | 1896 | 1983 | 2044 | 2112 | 2193 | 2304 | 2415 | 2538 | 2637 | 2816 | 3014 | 3168 | 3267 | 3323 | 3527 | 3811 | 4428 |
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