Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-22 | 305/40-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.44 (747.8) | 31.61 (802.8) | 2.17 (55) 7.4% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 92.49 (2349.28) | 99.29 (2522.07) | 6.8 (172.79) 7.4% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 4.8 (122) | 1.08 (27.5) 29.1% |
| Revolutions per mile (km) | 685.04 (425.66) | 638.1 (396.5) | -46.93 (-29.16) -6.9% |
305/40-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.47 mph (34.55 km/h) |
| 25 mph (40.23 km/h) | 26.84 mph (43.19 km/h) |
| 30 mph (48.28 km/h) | 32.21 mph (51.83 km/h) |
| 35 mph (56.33 km/h) | 37.57 mph (60.47 km/h) |
| 40 mph (64.37 km/h) | 42.94 mph (69.11 km/h) |
| 45 mph (72.42 km/h) | 48.31 mph (77.75 km/h) |
| 50 mph (80.47 km/h) | 53.68 mph (86.39 km/h) |
| 55 mph (88.51 km/h) | 59.05 mph (95.02 km/h) |
| 60 mph (96.56 km/h) | 64.41 mph (103.66 km/h) |
| 65 mph (104.61 km/h) | 69.78 mph (112.3 km/h) |
| 70 mph (112.65 km/h) | 75.15 mph (120.94 km/h) |
| 75 mph (120.7 km/h) | 80.52 mph (129.58 km/h) |
| 80 mph (128.75 km/h) | 85.88 mph (138.22 km/h) |
| 85 mph (136.79 km/h) | 91.25 mph (146.86 km/h) |
| 90 mph (144.84 km/h) | 96.62 mph (155.49 km/h) |
| 95 mph (152.89 km/h) | 101.99 mph (164.13 km/h) |
| 100 mph (160.93 km/h) | 107.35 mph (172.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1624 | 1886 | 2032 | 2121 | 2218 | 2287 | 2363 | 2453 | 2577 | 2702 | 2840 | 2951 | 3151 | 3372 | 3545 | 3655 | 3718 | 3946 | 4263 | 4954 |
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