Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-21 | 235/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.97 (735.9) | 27.33 (694.1) | -1.65 (-41.8) -5.7% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 91.02 (2311.9) | 85.85 (2180.58) | -5.17 (-131.32) -5.7% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.16 (105.75) | 0.18 (4.5) 4.4% |
| Revolutions per mile (km) | 696.11 (432.54) | 738.04 (458.59) | 41.92 (26.05) 6% |
235/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.86 mph (30.36 km/h) |
| 25 mph (40.23 km/h) | 23.58 mph (37.95 km/h) |
| 30 mph (48.28 km/h) | 28.3 mph (45.54 km/h) |
| 35 mph (56.33 km/h) | 33.01 mph (53.13 km/h) |
| 40 mph (64.37 km/h) | 37.73 mph (60.72 km/h) |
| 45 mph (72.42 km/h) | 42.44 mph (68.31 km/h) |
| 50 mph (80.47 km/h) | 47.16 mph (75.9 km/h) |
| 55 mph (88.51 km/h) | 51.88 mph (83.49 km/h) |
| 60 mph (96.56 km/h) | 56.59 mph (91.08 km/h) |
| 65 mph (104.61 km/h) | 61.31 mph (98.67 km/h) |
| 70 mph (112.65 km/h) | 66.02 mph (106.26 km/h) |
| 75 mph (120.7 km/h) | 70.74 mph (113.85 km/h) |
| 80 mph (128.75 km/h) | 75.46 mph (121.43 km/h) |
| 85 mph (136.79 km/h) | 80.17 mph (129.02 km/h) |
| 90 mph (144.84 km/h) | 84.89 mph (136.61 km/h) |
| 95 mph (152.89 km/h) | 89.6 mph (144.2 km/h) |
| 100 mph (160.93 km/h) | 94.32 mph (151.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1878 | 2182 | 2350 | 2454 | 2565 | 2645 | 2733 | 2837 | 2981 | 3125 | 3285 | 3413 | 3644 | 3900 | 4100 | 4228 | 4300 | 4564 | 4931 | 5730 |
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