Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/40-19 | 285/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.35 (694.6) | 27.98 (710.6) | 0.63 (16) 2.3% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 85.91 (2182.15) | 87.89 (2232.42) | 1.98 (50.27) 2.3% |
| Sidewall Height inches (mm) | 4.17 (106) | 4.49 (114) | 0.31 (8) 7.5% |
| Revolutions per mile (km) | 737.5 (458.26) | 720.9 (447.94) | -16.61 (-10.32) -2.3% |
285/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.46 mph (32.93 km/h) |
| 25 mph (40.23 km/h) | 25.58 mph (41.16 km/h) |
| 30 mph (48.28 km/h) | 30.69 mph (49.39 km/h) |
| 35 mph (56.33 km/h) | 35.81 mph (57.62 km/h) |
| 40 mph (64.37 km/h) | 40.92 mph (65.86 km/h) |
| 45 mph (72.42 km/h) | 46.04 mph (74.09 km/h) |
| 50 mph (80.47 km/h) | 51.15 mph (82.32 km/h) |
| 55 mph (88.51 km/h) | 56.27 mph (90.55 km/h) |
| 60 mph (96.56 km/h) | 61.38 mph (98.79 km/h) |
| 65 mph (104.61 km/h) | 66.5 mph (107.02 km/h) |
| 70 mph (112.65 km/h) | 71.61 mph (115.25 km/h) |
| 75 mph (120.7 km/h) | 76.73 mph (123.48 km/h) |
| 80 mph (128.75 km/h) | 81.84 mph (131.71 km/h) |
| 85 mph (136.79 km/h) | 86.96 mph (139.95 km/h) |
| 90 mph (144.84 km/h) | 92.07 mph (148.18 km/h) |
| 95 mph (152.89 km/h) | 97.19 mph (156.41 km/h) |
| 100 mph (160.93 km/h) | 102.3 mph (164.64 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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