Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/85-18 | 225/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.7 (703.7) | 28.74 (730.1) | 1.04 (26.4) 3.8% |
| Width inches (mm) | 5.71 (145) | 8.86 (225) | 3.15 (80) 55.2% |
| Circum. inches (mm) | 87.04 (2210.74) | 90.3 (2293.68) | 3.27 (82.94) 3.8% |
| Sidewall Height inches (mm) | 4.85 (123.25) | 4.87 (123.75) | 0.02 (0.5) 0.4% |
| Revolutions per mile (km) | 727.97 (452.34) | 701.64 (435.98) | -26.32 (-16.36) -3.6% |
225/55-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.75 mph (33.39 km/h) |
| 25 mph (40.23 km/h) | 25.94 mph (41.74 km/h) |
| 30 mph (48.28 km/h) | 31.13 mph (50.09 km/h) |
| 35 mph (56.33 km/h) | 36.31 mph (58.44 km/h) |
| 40 mph (64.37 km/h) | 41.5 mph (66.79 km/h) |
| 45 mph (72.42 km/h) | 46.69 mph (75.14 km/h) |
| 50 mph (80.47 km/h) | 51.88 mph (83.49 km/h) |
| 55 mph (88.51 km/h) | 57.06 mph (91.83 km/h) |
| 60 mph (96.56 km/h) | 62.25 mph (100.18 km/h) |
| 65 mph (104.61 km/h) | 67.44 mph (108.53 km/h) |
| 70 mph (112.65 km/h) | 72.63 mph (116.88 km/h) |
| 75 mph (120.7 km/h) | 77.81 mph (125.23 km/h) |
| 80 mph (128.75 km/h) | 83 mph (133.58 km/h) |
| 85 mph (136.79 km/h) | 88.19 mph (141.93 km/h) |
| 90 mph (144.84 km/h) | 93.38 mph (150.28 km/h) |
| 95 mph (152.89 km/h) | 98.56 mph (158.62 km/h) |
| 100 mph (160.93 km/h) | 103.75 mph (166.97 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1786 | 2074 | 2234 | 2333 | 2439 | 2515 | 2599 | 2697 | 2834 | 2971 | 3123 | 3244 | 3465 | 3708 | 3898 | 4019 | 4088 | 4339 | 4688 | 5448 |
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