Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-19 | 285/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.4 (797.6) | 35.21 (894.3) | 3.81 (96.7) 12.1% |
| Width inches (mm) | 8.86 (225) | 11.22 (285) | 2.36 (60) 26.7% |
| Circum. inches (mm) | 98.65 (2505.73) | 110.61 (2809.53) | 11.96 (303.79) 12.1% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 7.85 (199.5) | 1.65 (42) 26.7% |
| Revolutions per mile (km) | 642.26 (399.08) | 572.82 (355.93) | -69.45 (-43.15) -10.8% |
285/70-19.5 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.42 mph (36.09 km/h) |
| 25 mph (40.23 km/h) | 28.03 mph (45.11 km/h) |
| 30 mph (48.28 km/h) | 33.64 mph (54.13 km/h) |
| 35 mph (56.33 km/h) | 39.24 mph (63.16 km/h) |
| 40 mph (64.37 km/h) | 44.85 mph (72.18 km/h) |
| 45 mph (72.42 km/h) | 50.46 mph (81.2 km/h) |
| 50 mph (80.47 km/h) | 56.06 mph (90.22 km/h) |
| 55 mph (88.51 km/h) | 61.67 mph (99.25 km/h) |
| 60 mph (96.56 km/h) | 67.27 mph (108.27 km/h) |
| 65 mph (104.61 km/h) | 72.88 mph (117.29 km/h) |
| 70 mph (112.65 km/h) | 78.49 mph (126.31 km/h) |
| 75 mph (120.7 km/h) | 84.09 mph (135.33 km/h) |
| 80 mph (128.75 km/h) | 89.7 mph (144.36 km/h) |
| 85 mph (136.79 km/h) | 95.31 mph (153.38 km/h) |
| 90 mph (144.84 km/h) | 100.91 mph (162.4 km/h) |
| 95 mph (152.89 km/h) | 106.52 mph (171.42 km/h) |
| 100 mph (160.93 km/h) | 112.12 mph (180.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1458 | 1693 | 1824 | 1904 | 1991 | 2053 | 2121 | 2202 | 2314 | 2425 | 2549 | 2649 | 2829 | 3027 | 3182 | 3281 | 3337 | 3542 | 3827 | 4448 |
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