Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/65-16 | 305/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.59 (776.9) | 32.81 (833.4) | 2.22 (56.5) 7.3% |
| Width inches (mm) | 11.22 (285) | 12.01 (305) | 0.79 (20) 7% |
| Circum. inches (mm) | 96.09 (2440.7) | 103.08 (2618.2) | 6.99 (177.5) 7.3% |
| Sidewall Height inches (mm) | 7.29 (185.25) | 8.41 (213.5) | 1.11 (28.25) 15.2% |
| Revolutions per mile (km) | 659.38 (409.72) | 614.67 (381.94) | -44.7 (-27.78) -6.8% |
305/70-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.45 mph (34.53 km/h) |
| 25 mph (40.23 km/h) | 26.82 mph (43.16 km/h) |
| 30 mph (48.28 km/h) | 32.18 mph (51.79 km/h) |
| 35 mph (56.33 km/h) | 37.55 mph (60.42 km/h) |
| 40 mph (64.37 km/h) | 42.91 mph (69.06 km/h) |
| 45 mph (72.42 km/h) | 48.27 mph (77.69 km/h) |
| 50 mph (80.47 km/h) | 53.64 mph (86.32 km/h) |
| 55 mph (88.51 km/h) | 59 mph (94.95 km/h) |
| 60 mph (96.56 km/h) | 64.36 mph (103.58 km/h) |
| 65 mph (104.61 km/h) | 69.73 mph (112.22 km/h) |
| 70 mph (112.65 km/h) | 75.09 mph (120.85 km/h) |
| 75 mph (120.7 km/h) | 80.45 mph (129.48 km/h) |
| 80 mph (128.75 km/h) | 85.82 mph (138.11 km/h) |
| 85 mph (136.79 km/h) | 91.18 mph (146.74 km/h) |
| 90 mph (144.84 km/h) | 96.55 mph (155.37 km/h) |
| 95 mph (152.89 km/h) | 101.91 mph (164.01 km/h) |
| 100 mph (160.93 km/h) | 107.27 mph (172.64 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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