Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-19 | 285/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.74 (730.1) | 27.98 (710.6) | -0.77 (-19.5) -2.7% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 90.3 (2293.68) | 87.89 (2232.42) | -2.41 (-61.26) -2.7% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.49 (114) | -0.38 (-9.75) -7.9% |
| Revolutions per mile (km) | 701.64 (435.98) | 720.9 (447.94) | 19.25 (11.96) 2.7% |
285/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.47 mph (31.33 km/h) |
| 25 mph (40.23 km/h) | 24.33 mph (39.16 km/h) |
| 30 mph (48.28 km/h) | 29.2 mph (46.99 km/h) |
| 35 mph (56.33 km/h) | 34.07 mph (54.82 km/h) |
| 40 mph (64.37 km/h) | 38.93 mph (62.65 km/h) |
| 45 mph (72.42 km/h) | 43.8 mph (70.49 km/h) |
| 50 mph (80.47 km/h) | 48.66 mph (78.32 km/h) |
| 55 mph (88.51 km/h) | 53.53 mph (86.15 km/h) |
| 60 mph (96.56 km/h) | 58.4 mph (93.98 km/h) |
| 65 mph (104.61 km/h) | 63.26 mph (101.81 km/h) |
| 70 mph (112.65 km/h) | 68.13 mph (109.65 km/h) |
| 75 mph (120.7 km/h) | 73 mph (117.48 km/h) |
| 80 mph (128.75 km/h) | 77.86 mph (125.31 km/h) |
| 85 mph (136.79 km/h) | 82.73 mph (133.14 km/h) |
| 90 mph (144.84 km/h) | 87.6 mph (140.97 km/h) |
| 95 mph (152.89 km/h) | 92.46 mph (148.8 km/h) |
| 100 mph (160.93 km/h) | 97.33 mph (156.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1835 | 2131 | 2295 | 2397 | 2506 | 2584 | 2670 | 2771 | 2912 | 3052 | 3209 | 3333 | 3560 | 3810 | 4005 | 4130 | 4200 | 4458 | 4817 | 5597 |
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