Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 305/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 32.81 (833.4) | 5.65 (143.5) 20.8% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 85.33 (2167.38) | 103.08 (2618.2) | 17.75 (450.82) 20.8% |
| 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) | 614.67 (381.94) | -127.85 (-79.44) -17.2% |
305/70-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.16 mph (38.88 km/h) |
| 25 mph (40.23 km/h) | 30.2 mph (48.6 km/h) |
| 30 mph (48.28 km/h) | 36.24 mph (58.32 km/h) |
| 35 mph (56.33 km/h) | 42.28 mph (68.04 km/h) |
| 40 mph (64.37 km/h) | 48.32 mph (77.76 km/h) |
| 45 mph (72.42 km/h) | 54.36 mph (87.48 km/h) |
| 50 mph (80.47 km/h) | 60.4 mph (97.2 km/h) |
| 55 mph (88.51 km/h) | 66.44 mph (106.93 km/h) |
| 60 mph (96.56 km/h) | 72.48 mph (116.65 km/h) |
| 65 mph (104.61 km/h) | 78.52 mph (126.37 km/h) |
| 70 mph (112.65 km/h) | 84.56 mph (136.09 km/h) |
| 75 mph (120.7 km/h) | 90.6 mph (145.81 km/h) |
| 80 mph (128.75 km/h) | 96.64 mph (155.53 km/h) |
| 85 mph (136.79 km/h) | 102.68 mph (165.25 km/h) |
| 90 mph (144.84 km/h) | 108.72 mph (174.97 km/h) |
| 95 mph (152.89 km/h) | 114.76 mph (184.69 km/h) |
| 100 mph (160.93 km/h) | 120.8 mph (194.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1564 | 1817 | 1957 | 2043 | 2137 | 2203 | 2276 | 2363 | 2483 | 2603 | 2736 | 2842 | 3035 | 3248 | 3415 | 3521 | 3581 | 3801 | 4107 | 4773 |
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