Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-16 | 305/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.84 (910.4) | 32.81 (833.4) | -3.03 (-77) -8.5% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 112.6 (2860.11) | 103.08 (2618.2) | -9.52 (-241.9) -8.5% |
| Sidewall Height inches (mm) | 9.92 (252) | 8.41 (213.5) | -1.52 (-38.5) -15.3% |
| Revolutions per mile (km) | 562.69 (349.64) | 614.67 (381.94) | 51.99 (32.3) 9.2% |
305/70-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.31 mph (29.46 km/h) |
| 25 mph (40.23 km/h) | 22.89 mph (36.83 km/h) |
| 30 mph (48.28 km/h) | 27.46 mph (44.2 km/h) |
| 35 mph (56.33 km/h) | 32.04 mph (51.56 km/h) |
| 40 mph (64.37 km/h) | 36.62 mph (58.93 km/h) |
| 45 mph (72.42 km/h) | 41.19 mph (66.3 km/h) |
| 50 mph (80.47 km/h) | 45.77 mph (73.66 km/h) |
| 55 mph (88.51 km/h) | 50.35 mph (81.03 km/h) |
| 60 mph (96.56 km/h) | 54.93 mph (88.39 km/h) |
| 65 mph (104.61 km/h) | 59.5 mph (95.76 km/h) |
| 70 mph (112.65 km/h) | 64.08 mph (103.13 km/h) |
| 75 mph (120.7 km/h) | 68.66 mph (110.49 km/h) |
| 80 mph (128.75 km/h) | 73.23 mph (117.86 km/h) |
| 85 mph (136.79 km/h) | 77.81 mph (125.22 km/h) |
| 90 mph (144.84 km/h) | 82.39 mph (132.59 km/h) |
| 95 mph (152.89 km/h) | 86.97 mph (139.96 km/h) |
| 100 mph (160.93 km/h) | 91.54 mph (147.32 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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