Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/80-17 | 255/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.43 (823.8) | 32.06 (814.3) | -0.37 (-9.5) -1.2% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 101.89 (2588.04) | 100.72 (2558.2) | -1.18 (-29.85) -1.2% |
| Sidewall Height inches (mm) | 7.72 (196) | 7.53 (191.25) | -0.19 (-4.75) -2.4% |
| Revolutions per mile (km) | 621.84 (386.39) | 629.09 (390.9) | 7.25 (4.51) 1.2% |
255/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.77 mph (31.82 km/h) |
| 25 mph (40.23 km/h) | 24.71 mph (39.77 km/h) |
| 30 mph (48.28 km/h) | 29.65 mph (47.72 km/h) |
| 35 mph (56.33 km/h) | 34.6 mph (55.68 km/h) |
| 40 mph (64.37 km/h) | 39.54 mph (63.63 km/h) |
| 45 mph (72.42 km/h) | 44.48 mph (71.59 km/h) |
| 50 mph (80.47 km/h) | 49.42 mph (79.54 km/h) |
| 55 mph (88.51 km/h) | 54.37 mph (87.49 km/h) |
| 60 mph (96.56 km/h) | 59.31 mph (95.45 km/h) |
| 65 mph (104.61 km/h) | 64.25 mph (103.4 km/h) |
| 70 mph (112.65 km/h) | 69.19 mph (111.36 km/h) |
| 75 mph (120.7 km/h) | 74.14 mph (119.31 km/h) |
| 80 mph (128.75 km/h) | 79.08 mph (127.26 km/h) |
| 85 mph (136.79 km/h) | 84.02 mph (135.22 km/h) |
| 90 mph (144.84 km/h) | 88.96 mph (143.17 km/h) |
| 95 mph (152.89 km/h) | 93.9 mph (151.12 km/h) |
| 100 mph (160.93 km/h) | 98.85 mph (159.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1601 | 1860 | 2003 | 2091 | 2187 | 2255 | 2330 | 2418 | 2541 | 2664 | 2800 | 2909 | 3106 | 3324 | 3495 | 3604 | 3665 | 3890 | 4203 | 4885 |
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