Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-22 | 33/12.5-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.61 (802.8) | 33.02 (838.64) | 1.41 (35.84) 4.5% |
| Width inches (mm) | 12.01 (305) | 12.52 (318) | 0.51 (13) 4.3% |
| Circum. inches (mm) | 99.29 (2522.07) | 103.73 (2634.67) | 4.43 (112.59) 4.5% |
| Sidewall Height inches (mm) | 4.8 (122) | 5.51 (139.92) | 0.71 (17.92) 14.7% |
| Revolutions per mile (km) | 638.1 (396.5) | 610.83 (379.55) | -27.27 (-16.94) -4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.89 mph (33.62 km/h) |
| 25 mph (40.23 km/h) | 26.12 mph (42.03 km/h) |
| 30 mph (48.28 km/h) | 31.34 mph (50.44 km/h) |
| 35 mph (56.33 km/h) | 36.56 mph (58.84 km/h) |
| 40 mph (64.37 km/h) | 41.79 mph (67.25 km/h) |
| 45 mph (72.42 km/h) | 47.01 mph (75.65 km/h) |
| 50 mph (80.47 km/h) | 52.23 mph (84.06 km/h) |
| 55 mph (88.51 km/h) | 57.46 mph (92.47 km/h) |
| 60 mph (96.56 km/h) | 62.68 mph (100.87 km/h) |
| 65 mph (104.61 km/h) | 67.9 mph (109.28 km/h) |
| 70 mph (112.65 km/h) | 73.13 mph (117.68 km/h) |
| 75 mph (120.7 km/h) | 78.35 mph (126.09 km/h) |
| 80 mph (128.75 km/h) | 83.57 mph (134.5 km/h) |
| 85 mph (136.79 km/h) | 88.79 mph (142.9 km/h) |
| 90 mph (144.84 km/h) | 94.02 mph (151.31 km/h) |
| 95 mph (152.89 km/h) | 99.24 mph (159.71 km/h) |
| 100 mph (160.93 km/h) | 104.46 mph (168.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1806 | 1945 | 2031 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2719 | 2824 | 3016 | 3228 | 3393 | 3499 | 3559 | 3777 | 4081 | 4743 |
Better Fuel Economy Factory Ratios Increased Power
