Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/40-21 | 235/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.03 (737.4) | 29.18 (741.1) | 0.15 (3.7) 0.5% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 91.21 (2316.61) | 91.66 (2328.23) | 0.46 (11.62) 0.5% |
| Sidewall Height inches (mm) | 4.02 (102) | 5.09 (129.25) | 1.07 (27.25) 26.7% |
| Revolutions per mile (km) | 694.7 (431.66) | 691.23 (429.51) | -3.47 (-2.16) -0.5% |
235/55-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.1 mph (32.35 km/h) |
| 25 mph (40.23 km/h) | 25.13 mph (40.44 km/h) |
| 30 mph (48.28 km/h) | 30.15 mph (48.52 km/h) |
| 35 mph (56.33 km/h) | 35.18 mph (56.61 km/h) |
| 40 mph (64.37 km/h) | 40.2 mph (64.7 km/h) |
| 45 mph (72.42 km/h) | 45.23 mph (72.78 km/h) |
| 50 mph (80.47 km/h) | 50.25 mph (80.87 km/h) |
| 55 mph (88.51 km/h) | 55.28 mph (88.96 km/h) |
| 60 mph (96.56 km/h) | 60.3 mph (97.05 km/h) |
| 65 mph (104.61 km/h) | 65.33 mph (105.13 km/h) |
| 70 mph (112.65 km/h) | 70.35 mph (113.22 km/h) |
| 75 mph (120.7 km/h) | 75.38 mph (121.31 km/h) |
| 80 mph (128.75 km/h) | 80.4 mph (129.39 km/h) |
| 85 mph (136.79 km/h) | 85.43 mph (137.48 km/h) |
| 90 mph (144.84 km/h) | 90.45 mph (145.57 km/h) |
| 95 mph (152.89 km/h) | 95.48 mph (153.66 km/h) |
| 100 mph (160.93 km/h) | 100.5 mph (161.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1759 | 2043 | 2201 | 2298 | 2403 | 2478 | 2560 | 2657 | 2792 | 2927 | 3076 | 3196 | 3413 | 3653 | 3840 | 3960 | 4027 | 4274 | 4618 | 5367 |
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