Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-19 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.74 (730.1) | 27.03 (686.6) | -1.71 (-43.5) -6% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 90.3 (2293.68) | 84.92 (2157.02) | -5.38 (-136.66) -6% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.02 (102) | -0.86 (-21.75) -17.6% |
| Revolutions per mile (km) | 701.64 (435.98) | 746.1 (463.6) | 44.45 (27.62) 6.3% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.81 mph (30.27 km/h) |
| 25 mph (40.23 km/h) | 23.51 mph (37.84 km/h) |
| 30 mph (48.28 km/h) | 28.21 mph (45.4 km/h) |
| 35 mph (56.33 km/h) | 32.91 mph (52.97 km/h) |
| 40 mph (64.37 km/h) | 37.62 mph (60.54 km/h) |
| 45 mph (72.42 km/h) | 42.32 mph (68.11 km/h) |
| 50 mph (80.47 km/h) | 47.02 mph (75.67 km/h) |
| 55 mph (88.51 km/h) | 51.72 mph (83.24 km/h) |
| 60 mph (96.56 km/h) | 56.43 mph (90.81 km/h) |
| 65 mph (104.61 km/h) | 61.13 mph (98.37 km/h) |
| 70 mph (112.65 km/h) | 65.83 mph (105.94 km/h) |
| 75 mph (120.7 km/h) | 70.53 mph (113.51 km/h) |
| 80 mph (128.75 km/h) | 75.23 mph (121.08 km/h) |
| 85 mph (136.79 km/h) | 79.94 mph (128.64 km/h) |
| 90 mph (144.84 km/h) | 84.64 mph (136.21 km/h) |
| 95 mph (152.89 km/h) | 89.34 mph (143.78 km/h) |
| 100 mph (160.93 km/h) | 94.04 mph (151.35 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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