Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/85-18 | 255/50-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.37 (720.7) | 29.04 (737.6) | 0.67 (16.9) 2.3% |
| Width inches (mm) | 6.1 (155) | 10.04 (255) | 3.94 (100) 64.5% |
| Circum. inches (mm) | 89.14 (2264.15) | 91.23 (2317.24) | 2.09 (53.09) 2.3% |
| Sidewall Height inches (mm) | 5.19 (131.75) | 5.02 (127.5) | -0.17 (-4.25) -3.2% |
| Revolutions per mile (km) | 710.8 (441.67) | 694.51 (431.55) | -16.29 (-10.12) -2.3% |
255/50-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.47 mph (32.94 km/h) |
| 25 mph (40.23 km/h) | 25.59 mph (41.18 km/h) |
| 30 mph (48.28 km/h) | 30.7 mph (49.41 km/h) |
| 35 mph (56.33 km/h) | 35.82 mph (57.65 km/h) |
| 40 mph (64.37 km/h) | 40.94 mph (65.88 km/h) |
| 45 mph (72.42 km/h) | 46.06 mph (74.12 km/h) |
| 50 mph (80.47 km/h) | 51.17 mph (82.35 km/h) |
| 55 mph (88.51 km/h) | 56.29 mph (90.59 km/h) |
| 60 mph (96.56 km/h) | 61.41 mph (98.83 km/h) |
| 65 mph (104.61 km/h) | 66.52 mph (107.06 km/h) |
| 70 mph (112.65 km/h) | 71.64 mph (115.3 km/h) |
| 75 mph (120.7 km/h) | 76.76 mph (123.53 km/h) |
| 80 mph (128.75 km/h) | 81.88 mph (131.77 km/h) |
| 85 mph (136.79 km/h) | 86.99 mph (140 km/h) |
| 90 mph (144.84 km/h) | 92.11 mph (148.24 km/h) |
| 95 mph (152.89 km/h) | 97.23 mph (156.47 km/h) |
| 100 mph (160.93 km/h) | 102.34 mph (164.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1767 | 2053 | 2211 | 2309 | 2414 | 2489 | 2572 | 2670 | 2805 | 2941 | 3091 | 3211 | 3429 | 3670 | 3858 | 3979 | 4046 | 4294 | 4640 | 5392 |
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