Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 255/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 33.06 (839.8) | 3.89 (98.8) 13.3% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 91.65 (2327.92) | 103.87 (2638.31) | 12.22 (310.39) 13.3% |
| Sidewall Height inches (mm) | 7.09 (180) | 8.03 (204) | 0.94 (24) 13.3% |
| Revolutions per mile (km) | 691.32 (429.57) | 609.99 (379.03) | -81.33 (-50.54) -11.8% |
255/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.67 mph (36.48 km/h) |
| 25 mph (40.23 km/h) | 28.33 mph (45.6 km/h) |
| 30 mph (48.28 km/h) | 34 mph (54.72 km/h) |
| 35 mph (56.33 km/h) | 39.67 mph (63.84 km/h) |
| 40 mph (64.37 km/h) | 45.33 mph (72.96 km/h) |
| 45 mph (72.42 km/h) | 51 mph (82.08 km/h) |
| 50 mph (80.47 km/h) | 56.67 mph (91.2 km/h) |
| 55 mph (88.51 km/h) | 62.33 mph (100.32 km/h) |
| 60 mph (96.56 km/h) | 68 mph (109.44 km/h) |
| 65 mph (104.61 km/h) | 73.67 mph (118.56 km/h) |
| 70 mph (112.65 km/h) | 79.33 mph (127.67 km/h) |
| 75 mph (120.7 km/h) | 85 mph (136.79 km/h) |
| 80 mph (128.75 km/h) | 90.67 mph (145.91 km/h) |
| 85 mph (136.79 km/h) | 96.33 mph (155.03 km/h) |
| 90 mph (144.84 km/h) | 102 mph (164.15 km/h) |
| 95 mph (152.89 km/h) | 107.67 mph (173.27 km/h) |
| 100 mph (160.93 km/h) | 113.33 mph (182.39 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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