Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/85-18 | 255/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.37 (720.7) | 30.04 (763.1) | 1.67 (42.4) 5.9% |
| Width inches (mm) | 6.1 (155) | 10.04 (255) | 3.94 (100) 64.5% |
| Circum. inches (mm) | 89.14 (2264.15) | 94.38 (2397.35) | 5.24 (133.2) 5.9% |
| Sidewall Height inches (mm) | 5.19 (131.75) | 5.52 (140.25) | 0.33 (8.5) 6.5% |
| Revolutions per mile (km) | 710.8 (441.67) | 671.3 (417.13) | -39.49 (-24.54) -5.6% |
255/55-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.18 mph (34.08 km/h) |
| 25 mph (40.23 km/h) | 26.47 mph (42.6 km/h) |
| 30 mph (48.28 km/h) | 31.76 mph (51.12 km/h) |
| 35 mph (56.33 km/h) | 37.06 mph (59.64 km/h) |
| 40 mph (64.37 km/h) | 42.35 mph (68.16 km/h) |
| 45 mph (72.42 km/h) | 47.65 mph (76.68 km/h) |
| 50 mph (80.47 km/h) | 52.94 mph (85.2 km/h) |
| 55 mph (88.51 km/h) | 58.24 mph (93.72 km/h) |
| 60 mph (96.56 km/h) | 63.53 mph (102.24 km/h) |
| 65 mph (104.61 km/h) | 68.82 mph (110.76 km/h) |
| 70 mph (112.65 km/h) | 74.12 mph (119.28 km/h) |
| 75 mph (120.7 km/h) | 79.41 mph (127.8 km/h) |
| 80 mph (128.75 km/h) | 84.71 mph (136.32 km/h) |
| 85 mph (136.79 km/h) | 90 mph (144.84 km/h) |
| 90 mph (144.84 km/h) | 95.29 mph (153.36 km/h) |
| 95 mph (152.89 km/h) | 100.59 mph (161.88 km/h) |
| 100 mph (160.93 km/h) | 105.88 mph (170.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1708 | 1985 | 2137 | 2232 | 2334 | 2406 | 2486 | 2581 | 2712 | 2842 | 2988 | 3104 | 3315 | 3548 | 3729 | 3846 | 3911 | 4151 | 4485 | 5212 |
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