Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 325/50-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 34.8 (883.8) | -2.65 (-67.2) -7.1% |
| Width inches (mm) | 12.4 (315) | 12.8 (325) | 0.39 (10) 3.2% |
| Circum. inches (mm) | 117.62 (2987.65) | 109.31 (2776.54) | -8.31 (-211.12) -7.1% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 6.4 (162.5) | 2.68 (68) 72% |
| Revolutions per mile (km) | 538.66 (334.71) | 579.62 (360.16) | 40.96 (25.45) 7.6% |
325/50-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.59 mph (29.91 km/h) |
| 25 mph (40.23 km/h) | 23.23 mph (37.39 km/h) |
| 30 mph (48.28 km/h) | 27.88 mph (44.87 km/h) |
| 35 mph (56.33 km/h) | 32.53 mph (52.35 km/h) |
| 40 mph (64.37 km/h) | 37.17 mph (59.83 km/h) |
| 45 mph (72.42 km/h) | 41.82 mph (67.3 km/h) |
| 50 mph (80.47 km/h) | 46.47 mph (74.78 km/h) |
| 55 mph (88.51 km/h) | 51.11 mph (82.26 km/h) |
| 60 mph (96.56 km/h) | 55.76 mph (89.74 km/h) |
| 65 mph (104.61 km/h) | 60.41 mph (97.22 km/h) |
| 70 mph (112.65 km/h) | 65.05 mph (104.69 km/h) |
| 75 mph (120.7 km/h) | 69.7 mph (112.17 km/h) |
| 80 mph (128.75 km/h) | 74.35 mph (119.65 km/h) |
| 85 mph (136.79 km/h) | 78.99 mph (127.13 km/h) |
| 90 mph (144.84 km/h) | 83.64 mph (134.61 km/h) |
| 95 mph (152.89 km/h) | 88.29 mph (142.08 km/h) |
| 100 mph (160.93 km/h) | 92.93 mph (149.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1475 | 1714 | 1845 | 1927 | 2015 | 2078 | 2147 | 2228 | 2341 | 2454 | 2580 | 2680 | 2862 | 3063 | 3220 | 3320 | 3377 | 3584 | 3873 | 4500 |
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