Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-19 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.76 (730.6) | 27.03 (686.6) | -1.73 (-44) -6% |
| Width inches (mm) | 6.1 (155) | 10.04 (255) | 3.94 (100) 64.5% |
| Circum. inches (mm) | 90.36 (2295.25) | 84.92 (2157.02) | -5.44 (-138.23) -6% |
| Sidewall Height inches (mm) | 4.88 (124) | 4.02 (102) | -0.87 (-22) -17.7% |
| Revolutions per mile (km) | 701.16 (435.68) | 746.1 (463.6) | 44.93 (27.92) 6.4% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.8 mph (30.25 km/h) |
| 25 mph (40.23 km/h) | 23.49 mph (37.81 km/h) |
| 30 mph (48.28 km/h) | 28.19 mph (45.37 km/h) |
| 35 mph (56.33 km/h) | 32.89 mph (52.93 km/h) |
| 40 mph (64.37 km/h) | 37.59 mph (60.5 km/h) |
| 45 mph (72.42 km/h) | 42.29 mph (68.06 km/h) |
| 50 mph (80.47 km/h) | 46.99 mph (75.62 km/h) |
| 55 mph (88.51 km/h) | 51.69 mph (83.18 km/h) |
| 60 mph (96.56 km/h) | 56.39 mph (90.75 km/h) |
| 65 mph (104.61 km/h) | 61.09 mph (98.31 km/h) |
| 70 mph (112.65 km/h) | 65.78 mph (105.87 km/h) |
| 75 mph (120.7 km/h) | 70.48 mph (113.43 km/h) |
| 80 mph (128.75 km/h) | 75.18 mph (120.99 km/h) |
| 85 mph (136.79 km/h) | 79.88 mph (128.56 km/h) |
| 90 mph (144.84 km/h) | 84.58 mph (136.12 km/h) |
| 95 mph (152.89 km/h) | 89.28 mph (143.68 km/h) |
| 100 mph (160.93 km/h) | 93.98 mph (151.24 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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