Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-15 | 225/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.18 (639.5) | 24.74 (628.5) | -0.43 (-11) -1.7% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 79.1 (2009.05) | 77.74 (1974.49) | -1.36 (-34.56) -1.7% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 4.87 (123.75) | -0.22 (-5.5) -4.3% |
| Revolutions per mile (km) | 801.05 (497.75) | 815.07 (506.46) | 14.02 (8.71) 1.8% |
225/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.66 mph (31.63 km/h) |
| 25 mph (40.23 km/h) | 24.57 mph (39.54 km/h) |
| 30 mph (48.28 km/h) | 29.48 mph (47.45 km/h) |
| 35 mph (56.33 km/h) | 34.4 mph (55.36 km/h) |
| 40 mph (64.37 km/h) | 39.31 mph (63.27 km/h) |
| 45 mph (72.42 km/h) | 44.23 mph (71.17 km/h) |
| 50 mph (80.47 km/h) | 49.14 mph (79.08 km/h) |
| 55 mph (88.51 km/h) | 54.05 mph (86.99 km/h) |
| 60 mph (96.56 km/h) | 58.97 mph (94.9 km/h) |
| 65 mph (104.61 km/h) | 63.88 mph (102.81 km/h) |
| 70 mph (112.65 km/h) | 68.8 mph (110.72 km/h) |
| 75 mph (120.7 km/h) | 73.71 mph (118.62 km/h) |
| 80 mph (128.75 km/h) | 78.62 mph (126.53 km/h) |
| 85 mph (136.79 km/h) | 83.54 mph (134.44 km/h) |
| 90 mph (144.84 km/h) | 88.45 mph (142.35 km/h) |
| 95 mph (152.89 km/h) | 93.37 mph (150.26 km/h) |
| 100 mph (160.93 km/h) | 98.28 mph (158.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2074 | 2410 | 2595 | 2710 | 2833 | 2922 | 3019 | 3133 | 3292 | 3451 | 3628 | 3769 | 4025 | 4307 | 4528 | 4669 | 4749 | 5040 | 5446 | 6328 |
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