Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 305/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 34.81 (884.2) | 7.65 (194.3) 28.2% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 85.33 (2167.38) | 109.36 (2777.8) | 24.03 (610.41) 28.2% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 8.41 (213.5) | 2.82 (71.75) 50.6% |
| Revolutions per mile (km) | 742.53 (461.38) | 579.36 (360) | -163.17 (-101.39) -22% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.63 mph (41.25 km/h) |
| 25 mph (40.23 km/h) | 32.04 mph (51.56 km/h) |
| 30 mph (48.28 km/h) | 38.45 mph (61.88 km/h) |
| 35 mph (56.33 km/h) | 44.86 mph (72.19 km/h) |
| 40 mph (64.37 km/h) | 51.27 mph (82.5 km/h) |
| 45 mph (72.42 km/h) | 57.67 mph (92.82 km/h) |
| 50 mph (80.47 km/h) | 64.08 mph (103.13 km/h) |
| 55 mph (88.51 km/h) | 70.49 mph (113.44 km/h) |
| 60 mph (96.56 km/h) | 76.9 mph (123.76 km/h) |
| 65 mph (104.61 km/h) | 83.31 mph (134.07 km/h) |
| 70 mph (112.65 km/h) | 89.71 mph (144.38 km/h) |
| 75 mph (120.7 km/h) | 96.12 mph (154.69 km/h) |
| 80 mph (128.75 km/h) | 102.53 mph (165.01 km/h) |
| 85 mph (136.79 km/h) | 108.94 mph (175.32 km/h) |
| 90 mph (144.84 km/h) | 115.35 mph (185.63 km/h) |
| 95 mph (152.89 km/h) | 121.76 mph (195.95 km/h) |
| 100 mph (160.93 km/h) | 128.16 mph (206.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1474 | 1713 | 1845 | 1926 | 2014 | 2077 | 2146 | 2227 | 2340 | 2453 | 2579 | 2679 | 2861 | 3062 | 3218 | 3319 | 3375 | 3582 | 3871 | 4498 |
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