Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16 | 315/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.47 (773.9) | 35.36 (898.2) | 4.89 (124.3) 16.1% |
| Width inches (mm) | 9.65 (245) | 12.4 (315) | 2.76 (70) 28.6% |
| Circum. inches (mm) | 95.72 (2431.28) | 111.09 (2821.78) | 15.37 (390.5) 16.1% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.68 (220.5) | 1.45 (36.75) 20% |
| Revolutions per mile (km) | 661.93 (411.31) | 570.33 (354.39) | -91.6 (-56.92) -13.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.21 mph (37.36 km/h) |
| 25 mph (40.23 km/h) | 29.02 mph (46.7 km/h) |
| 30 mph (48.28 km/h) | 34.82 mph (56.03 km/h) |
| 35 mph (56.33 km/h) | 40.62 mph (65.37 km/h) |
| 40 mph (64.37 km/h) | 46.42 mph (74.71 km/h) |
| 45 mph (72.42 km/h) | 52.23 mph (84.05 km/h) |
| 50 mph (80.47 km/h) | 58.03 mph (93.39 km/h) |
| 55 mph (88.51 km/h) | 63.83 mph (102.73 km/h) |
| 60 mph (96.56 km/h) | 69.64 mph (112.07 km/h) |
| 65 mph (104.61 km/h) | 75.44 mph (121.41 km/h) |
| 70 mph (112.65 km/h) | 81.24 mph (130.75 km/h) |
| 75 mph (120.7 km/h) | 87.05 mph (140.09 km/h) |
| 80 mph (128.75 km/h) | 92.85 mph (149.43 km/h) |
| 85 mph (136.79 km/h) | 98.65 mph (158.77 km/h) |
| 90 mph (144.84 km/h) | 104.46 mph (168.1 km/h) |
| 95 mph (152.89 km/h) | 110.26 mph (177.44 km/h) |
| 100 mph (160.93 km/h) | 116.06 mph (186.78 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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