Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-22 | 305/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.61 (802.8) | 26.41 (670.7) | -5.2 (-132.1) -16.5% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 99.29 (2522.07) | 82.96 (2107.07) | -16.34 (-415) -16.5% |
| Sidewall Height inches (mm) | 4.8 (122) | 4.2 (106.75) | -0.6 (-15.25) -12.5% |
| Revolutions per mile (km) | 638.1 (396.5) | 763.78 (474.59) | 125.68 (78.09) 19.7% |
305/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.71 mph (26.89 km/h) |
| 25 mph (40.23 km/h) | 20.89 mph (33.61 km/h) |
| 30 mph (48.28 km/h) | 25.06 mph (40.34 km/h) |
| 35 mph (56.33 km/h) | 29.24 mph (47.06 km/h) |
| 40 mph (64.37 km/h) | 33.42 mph (53.78 km/h) |
| 45 mph (72.42 km/h) | 37.6 mph (60.5 km/h) |
| 50 mph (80.47 km/h) | 41.77 mph (67.23 km/h) |
| 55 mph (88.51 km/h) | 45.95 mph (73.95 km/h) |
| 60 mph (96.56 km/h) | 50.13 mph (80.67 km/h) |
| 65 mph (104.61 km/h) | 54.3 mph (87.39 km/h) |
| 70 mph (112.65 km/h) | 58.48 mph (94.12 km/h) |
| 75 mph (120.7 km/h) | 62.66 mph (100.84 km/h) |
| 80 mph (128.75 km/h) | 66.84 mph (107.56 km/h) |
| 85 mph (136.79 km/h) | 71.01 mph (114.29 km/h) |
| 90 mph (144.84 km/h) | 75.19 mph (121.01 km/h) |
| 95 mph (152.89 km/h) | 79.37 mph (127.73 km/h) |
| 100 mph (160.93 km/h) | 83.55 mph (134.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2258 | 2432 | 2539 | 2655 | 2738 | 2829 | 2936 | 3085 | 3234 | 3399 | 3532 | 3772 | 4036 | 4243 | 4375 | 4450 | 4723 | 5103 | 5930 |
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