Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-18 | 305/40-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.04 (737.7) | 31.61 (802.8) | 2.56 (65.1) 8.8% |
| Width inches (mm) | 10.04 (255) | 12.01 (305) | 1.97 (50) 19.6% |
| Circum. inches (mm) | 91.24 (2317.55) | 99.29 (2522.07) | 8.05 (204.52) 8.8% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 4.8 (122) | -0.72 (-18.25) -13% |
| Revolutions per mile (km) | 694.42 (431.49) | 638.1 (396.5) | -56.31 (-34.99) -8.1% |
305/40-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.76 mph (35.03 km/h) |
| 25 mph (40.23 km/h) | 27.21 mph (43.78 km/h) |
| 30 mph (48.28 km/h) | 32.65 mph (52.54 km/h) |
| 35 mph (56.33 km/h) | 38.09 mph (61.3 km/h) |
| 40 mph (64.37 km/h) | 43.53 mph (70.05 km/h) |
| 45 mph (72.42 km/h) | 48.97 mph (78.81 km/h) |
| 50 mph (80.47 km/h) | 54.41 mph (87.57 km/h) |
| 55 mph (88.51 km/h) | 59.85 mph (96.33 km/h) |
| 60 mph (96.56 km/h) | 65.29 mph (105.08 km/h) |
| 65 mph (104.61 km/h) | 70.74 mph (113.84 km/h) |
| 70 mph (112.65 km/h) | 76.18 mph (122.6 km/h) |
| 75 mph (120.7 km/h) | 81.62 mph (131.35 km/h) |
| 80 mph (128.75 km/h) | 87.06 mph (140.11 km/h) |
| 85 mph (136.79 km/h) | 92.5 mph (148.87 km/h) |
| 90 mph (144.84 km/h) | 97.94 mph (157.62 km/h) |
| 95 mph (152.89 km/h) | 103.38 mph (166.38 km/h) |
| 100 mph (160.93 km/h) | 108.82 mph (175.14 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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