Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/45-21 | 225/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.33 (744.9) | 28.74 (730.1) | -0.58 (-14.8) -2% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 92.13 (2340.17) | 90.3 (2293.68) | -1.83 (-46.5) -2% |
| Sidewall Height inches (mm) | 4.16 (105.75) | 4.87 (123.75) | 0.71 (18) 17% |
| Revolutions per mile (km) | 687.7 (427.32) | 701.64 (435.98) | 13.94 (8.66) 2% |
225/55-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.6 mph (31.55 km/h) |
| 25 mph (40.23 km/h) | 24.5 mph (39.43 km/h) |
| 30 mph (48.28 km/h) | 29.4 mph (47.32 km/h) |
| 35 mph (56.33 km/h) | 34.3 mph (55.21 km/h) |
| 40 mph (64.37 km/h) | 39.21 mph (63.09 km/h) |
| 45 mph (72.42 km/h) | 44.11 mph (70.98 km/h) |
| 50 mph (80.47 km/h) | 49.01 mph (78.87 km/h) |
| 55 mph (88.51 km/h) | 53.91 mph (86.76 km/h) |
| 60 mph (96.56 km/h) | 58.81 mph (94.64 km/h) |
| 65 mph (104.61 km/h) | 63.71 mph (102.53 km/h) |
| 70 mph (112.65 km/h) | 68.61 mph (110.42 km/h) |
| 75 mph (120.7 km/h) | 73.51 mph (118.3 km/h) |
| 80 mph (128.75 km/h) | 78.41 mph (126.19 km/h) |
| 85 mph (136.79 km/h) | 83.31 mph (134.08 km/h) |
| 90 mph (144.84 km/h) | 88.21 mph (141.96 km/h) |
| 95 mph (152.89 km/h) | 93.11 mph (149.85 km/h) |
| 100 mph (160.93 km/h) | 98.01 mph (157.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1786 | 2074 | 2234 | 2333 | 2439 | 2515 | 2599 | 2697 | 2834 | 2971 | 3123 | 3244 | 3465 | 3708 | 3898 | 4019 | 4088 | 4339 | 4688 | 5448 |
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