Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/45-19 | 315/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.45 (748.1) | 25.44 (646.2) | -4.01 (-101.9) -13.6% |
| Width inches (mm) | 11.61 (295) | 12.4 (315) | 0.79 (20) 6.8% |
| Circum. inches (mm) | 92.53 (2350.23) | 79.93 (2030.1) | -12.6 (-320.13) -13.6% |
| Sidewall Height inches (mm) | 5.23 (132.75) | 3.72 (94.5) | -1.51 (-38.25) -28.8% |
| Revolutions per mile (km) | 684.76 (425.49) | 792.74 (492.59) | 107.98 (67.1) 15.8% |
315/30-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.28 mph (27.8 km/h) |
| 25 mph (40.23 km/h) | 21.59 mph (34.75 km/h) |
| 30 mph (48.28 km/h) | 25.91 mph (41.7 km/h) |
| 35 mph (56.33 km/h) | 30.23 mph (48.65 km/h) |
| 40 mph (64.37 km/h) | 34.55 mph (55.61 km/h) |
| 45 mph (72.42 km/h) | 38.87 mph (62.56 km/h) |
| 50 mph (80.47 km/h) | 43.19 mph (69.51 km/h) |
| 55 mph (88.51 km/h) | 47.51 mph (76.46 km/h) |
| 60 mph (96.56 km/h) | 51.83 mph (83.41 km/h) |
| 65 mph (104.61 km/h) | 56.15 mph (90.36 km/h) |
| 70 mph (112.65 km/h) | 60.47 mph (97.31 km/h) |
| 75 mph (120.7 km/h) | 64.78 mph (104.26 km/h) |
| 80 mph (128.75 km/h) | 69.1 mph (111.21 km/h) |
| 85 mph (136.79 km/h) | 73.42 mph (118.16 km/h) |
| 90 mph (144.84 km/h) | 77.74 mph (125.11 km/h) |
| 95 mph (152.89 km/h) | 82.06 mph (132.06 km/h) |
| 100 mph (160.93 km/h) | 86.38 mph (139.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | 2344 | 2524 | 2635 | 2756 | 2841 | 2936 | 3048 | 3202 | 3357 | 3528 | 3666 | 3915 | 4189 | 4404 | 4541 | 4619 | 4902 | 5297 | 6155 |
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