Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-19 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.6) | 27.03 (686.6) | -0.94 (-24) -3.4% |
| Width inches (mm) | 11.22 (285) | 10.04 (255) | -1.18 (-30) -10.5% |
| Circum. inches (mm) | 87.89 (2232.42) | 84.92 (2157.02) | -2.97 (-75.4) -3.4% |
| Sidewall Height inches (mm) | 4.49 (114) | 4.02 (102) | -0.47 (-12) -10.5% |
| Revolutions per mile (km) | 720.9 (447.94) | 746.1 (463.6) | 25.2 (15.66) 3.5% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.1 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.87 km/h) |
| 30 mph (48.28 km/h) | 28.99 mph (46.65 km/h) |
| 35 mph (56.33 km/h) | 33.82 mph (54.42 km/h) |
| 40 mph (64.37 km/h) | 38.65 mph (62.2 km/h) |
| 45 mph (72.42 km/h) | 43.48 mph (69.97 km/h) |
| 50 mph (80.47 km/h) | 48.31 mph (77.75 km/h) |
| 55 mph (88.51 km/h) | 53.14 mph (85.52 km/h) |
| 60 mph (96.56 km/h) | 57.97 mph (93.3 km/h) |
| 65 mph (104.61 km/h) | 62.8 mph (101.07 km/h) |
| 70 mph (112.65 km/h) | 67.64 mph (108.85 km/h) |
| 75 mph (120.7 km/h) | 72.47 mph (116.62 km/h) |
| 80 mph (128.75 km/h) | 77.3 mph (124.4 km/h) |
| 85 mph (136.79 km/h) | 82.13 mph (132.17 km/h) |
| 90 mph (144.84 km/h) | 86.96 mph (139.95 km/h) |
| 95 mph (152.89 km/h) | 91.79 mph (147.72 km/h) |
| 100 mph (160.93 km/h) | 96.62 mph (155.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2375 | 2480 | 2594 | 2674 | 2763 | 2868 | 3014 | 3159 | 3321 | 3450 | 3684 | 3943 | 4145 | 4274 | 4347 | 4613 | 4985 | 5793 |
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