Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 40/13.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 39.96 (1014.9) | 8.99 (228.3) 29% |
| Width inches (mm) | 9.65 (245) | 13.5 (343) | 3.86 (98) 40% |
| Circum. inches (mm) | 97.29 (2471.18) | 125.53 (3188.4) | 28.24 (717.23) 29% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 11.48 (291.55) | 4.24 (107.8) 58.7% |
| Revolutions per mile (km) | 651.25 (404.66) | 504.75 (313.64) | -146.5 (-91.03) -22.5% |
40/13.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.8 mph (41.53 km/h) |
| 25 mph (40.23 km/h) | 32.26 mph (51.91 km/h) |
| 30 mph (48.28 km/h) | 38.71 mph (62.29 km/h) |
| 35 mph (56.33 km/h) | 45.16 mph (72.68 km/h) |
| 40 mph (64.37 km/h) | 51.61 mph (83.06 km/h) |
| 45 mph (72.42 km/h) | 58.06 mph (93.44 km/h) |
| 50 mph (80.47 km/h) | 64.51 mph (103.82 km/h) |
| 55 mph (88.51 km/h) | 70.96 mph (114.2 km/h) |
| 60 mph (96.56 km/h) | 77.41 mph (124.59 km/h) |
| 65 mph (104.61 km/h) | 83.87 mph (134.97 km/h) |
| 70 mph (112.65 km/h) | 90.32 mph (145.35 km/h) |
| 75 mph (120.7 km/h) | 96.77 mph (155.73 km/h) |
| 80 mph (128.75 km/h) | 103.22 mph (166.12 km/h) |
| 85 mph (136.79 km/h) | 109.67 mph (176.5 km/h) |
| 90 mph (144.84 km/h) | 116.12 mph (186.88 km/h) |
| 95 mph (152.89 km/h) | 122.57 mph (197.26 km/h) |
| 100 mph (160.93 km/h) | 129.02 mph (207.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1284 | 1492 | 1607 | 1678 | 1755 | 1809 | 1869 | 1940 | 2039 | 2137 | 2246 | 2334 | 2492 | 2667 | 2804 | 2891 | 2941 | 3121 | 3372 | 3919 |
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