Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-21 | 245/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.04 (788.4) | 29.61 (752.1) | -1.43 (-36.3) -4.6% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 97.51 (2476.83) | 93.02 (2362.79) | -4.49 (-114.04) -4.6% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 5.31 (134.75) | 0.29 (7.25) 5.7% |
| Revolutions per mile (km) | 649.76 (403.74) | 681.12 (423.23) | 31.36 (19.49) 4.8% |
245/55-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.08 mph (30.7 km/h) |
| 25 mph (40.23 km/h) | 23.85 mph (38.38 km/h) |
| 30 mph (48.28 km/h) | 28.62 mph (46.06 km/h) |
| 35 mph (56.33 km/h) | 33.39 mph (53.73 km/h) |
| 40 mph (64.37 km/h) | 38.16 mph (61.41 km/h) |
| 45 mph (72.42 km/h) | 42.93 mph (69.09 km/h) |
| 50 mph (80.47 km/h) | 47.7 mph (76.76 km/h) |
| 55 mph (88.51 km/h) | 52.47 mph (84.44 km/h) |
| 60 mph (96.56 km/h) | 57.24 mph (92.11 km/h) |
| 65 mph (104.61 km/h) | 62.01 mph (99.79 km/h) |
| 70 mph (112.65 km/h) | 66.78 mph (107.47 km/h) |
| 75 mph (120.7 km/h) | 71.55 mph (115.14 km/h) |
| 80 mph (128.75 km/h) | 76.32 mph (122.82 km/h) |
| 85 mph (136.79 km/h) | 81.09 mph (130.5 km/h) |
| 90 mph (144.84 km/h) | 85.86 mph (138.17 km/h) |
| 95 mph (152.89 km/h) | 90.63 mph (145.85 km/h) |
| 100 mph (160.93 km/h) | 95.4 mph (153.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1733 | 2014 | 2168 | 2264 | 2368 | 2441 | 2523 | 2618 | 2751 | 2884 | 3031 | 3149 | 3363 | 3599 | 3784 | 3902 | 3968 | 4212 | 4551 | 5288 |
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