Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-16 | 255/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.61 (777.4) | 33.06 (839.8) | 2.46 (62.4) 8% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 96.15 (2442.27) | 103.87 (2638.31) | 7.72 (196.04) 8% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 8.03 (204) | 0.73 (18.5) 10% |
| Revolutions per mile (km) | 658.95 (409.45) | 609.99 (379.03) | -48.96 (-30.42) -7.4% |
255/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.61 mph (34.77 km/h) |
| 25 mph (40.23 km/h) | 27.01 mph (43.46 km/h) |
| 30 mph (48.28 km/h) | 32.41 mph (52.16 km/h) |
| 35 mph (56.33 km/h) | 37.81 mph (60.85 km/h) |
| 40 mph (64.37 km/h) | 43.21 mph (69.54 km/h) |
| 45 mph (72.42 km/h) | 48.61 mph (78.23 km/h) |
| 50 mph (80.47 km/h) | 54.01 mph (86.93 km/h) |
| 55 mph (88.51 km/h) | 59.41 mph (95.62 km/h) |
| 60 mph (96.56 km/h) | 64.82 mph (104.31 km/h) |
| 65 mph (104.61 km/h) | 70.22 mph (113 km/h) |
| 70 mph (112.65 km/h) | 75.62 mph (121.7 km/h) |
| 75 mph (120.7 km/h) | 81.02 mph (130.39 km/h) |
| 80 mph (128.75 km/h) | 86.42 mph (139.08 km/h) |
| 85 mph (136.79 km/h) | 91.82 mph (147.77 km/h) |
| 90 mph (144.84 km/h) | 97.22 mph (156.47 km/h) |
| 95 mph (152.89 km/h) | 102.63 mph (165.16 km/h) |
| 100 mph (160.93 km/h) | 108.03 mph (173.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1803 | 1942 | 2028 | 2120 | 2186 | 2259 | 2345 | 2464 | 2583 | 2715 | 2821 | 3012 | 3224 | 3389 | 3494 | 3554 | 3772 | 4076 | 4736 |
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