Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/65-17 | 255/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.54 (750.3) | 33.06 (839.8) | 3.52 (89.5) 11.9% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 92.8 (2357.14) | 103.87 (2638.31) | 11.07 (281.17) 11.9% |
| Sidewall Height inches (mm) | 6.27 (159.25) | 8.03 (204) | 1.76 (44.75) 28.1% |
| Revolutions per mile (km) | 682.75 (424.24) | 609.99 (379.03) | -72.76 (-45.21) -10.7% |
255/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.39 mph (36.03 km/h) |
| 25 mph (40.23 km/h) | 27.98 mph (45.03 km/h) |
| 30 mph (48.28 km/h) | 33.58 mph (54.04 km/h) |
| 35 mph (56.33 km/h) | 39.17 mph (63.05 km/h) |
| 40 mph (64.37 km/h) | 44.77 mph (72.05 km/h) |
| 45 mph (72.42 km/h) | 50.37 mph (81.06 km/h) |
| 50 mph (80.47 km/h) | 55.96 mph (90.07 km/h) |
| 55 mph (88.51 km/h) | 61.56 mph (99.07 km/h) |
| 60 mph (96.56 km/h) | 67.16 mph (108.08 km/h) |
| 65 mph (104.61 km/h) | 72.75 mph (117.09 km/h) |
| 70 mph (112.65 km/h) | 78.35 mph (126.09 km/h) |
| 75 mph (120.7 km/h) | 83.95 mph (135.1 km/h) |
| 80 mph (128.75 km/h) | 89.54 mph (144.11 km/h) |
| 85 mph (136.79 km/h) | 95.14 mph (153.11 km/h) |
| 90 mph (144.84 km/h) | 100.74 mph (162.12 km/h) |
| 95 mph (152.89 km/h) | 106.33 mph (171.13 km/h) |
| 100 mph (160.93 km/h) | 111.93 mph (180.13 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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