Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-16 | 285/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.61 (777.4) | 31.22 (793) | 0.61 (15.6) 2% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 96.15 (2442.27) | 98.08 (2491.28) | 1.93 (49.01) 2% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 5.61 (142.5) | -1.69 (-43) -23.2% |
| Revolutions per mile (km) | 658.95 (409.45) | 645.99 (401.4) | -12.96 (-8.05) -2% |
285/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.4 mph (32.83 km/h) |
| 25 mph (40.23 km/h) | 25.5 mph (41.04 km/h) |
| 30 mph (48.28 km/h) | 30.6 mph (49.25 km/h) |
| 35 mph (56.33 km/h) | 35.7 mph (57.46 km/h) |
| 40 mph (64.37 km/h) | 40.8 mph (65.67 km/h) |
| 45 mph (72.42 km/h) | 45.9 mph (73.87 km/h) |
| 50 mph (80.47 km/h) | 51 mph (82.08 km/h) |
| 55 mph (88.51 km/h) | 56.1 mph (90.29 km/h) |
| 60 mph (96.56 km/h) | 61.2 mph (98.5 km/h) |
| 65 mph (104.61 km/h) | 66.3 mph (106.71 km/h) |
| 70 mph (112.65 km/h) | 71.4 mph (114.91 km/h) |
| 75 mph (120.7 km/h) | 76.51 mph (123.12 km/h) |
| 80 mph (128.75 km/h) | 81.61 mph (131.33 km/h) |
| 85 mph (136.79 km/h) | 86.71 mph (139.54 km/h) |
| 90 mph (144.84 km/h) | 91.81 mph (147.75 km/h) |
| 95 mph (152.89 km/h) | 96.91 mph (155.96 km/h) |
| 100 mph (160.93 km/h) | 102.01 mph (164.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1644 | 1910 | 2057 | 2148 | 2246 | 2315 | 2392 | 2483 | 2609 | 2735 | 2875 | 2987 | 3190 | 3414 | 3589 | 3701 | 3764 | 3994 | 4316 | 5016 |
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