Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-18 | 33/11.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.54 (674.2) | 33.11 (840.88) | 6.56 (166.68) 24.7% |
| Width inches (mm) | 6.1 (155) | 11.5 (292) | 5.39 (137) 88.4% |
| Circum. inches (mm) | 83.39 (2118.06) | 104 (2641.7) | 20.62 (523.64) 24.7% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 6.55 (166.44) | 2.28 (57.94) 53.4% |
| Revolutions per mile (km) | 759.82 (472.13) | 609.21 (378.54) | -150.61 (-93.59) -19.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.94 mph (40.14 km/h) |
| 25 mph (40.23 km/h) | 31.18 mph (50.18 km/h) |
| 30 mph (48.28 km/h) | 37.42 mph (60.22 km/h) |
| 35 mph (56.33 km/h) | 43.65 mph (70.25 km/h) |
| 40 mph (64.37 km/h) | 49.89 mph (80.29 km/h) |
| 45 mph (72.42 km/h) | 56.13 mph (90.32 km/h) |
| 50 mph (80.47 km/h) | 62.36 mph (100.36 km/h) |
| 55 mph (88.51 km/h) | 68.6 mph (110.4 km/h) |
| 60 mph (96.56 km/h) | 74.83 mph (120.43 km/h) |
| 65 mph (104.61 km/h) | 81.07 mph (130.47 km/h) |
| 70 mph (112.65 km/h) | 87.31 mph (140.51 km/h) |
| 75 mph (120.7 km/h) | 93.54 mph (150.54 km/h) |
| 80 mph (128.75 km/h) | 99.78 mph (160.58 km/h) |
| 85 mph (136.79 km/h) | 106.01 mph (170.61 km/h) |
| 90 mph (144.84 km/h) | 112.25 mph (180.65 km/h) |
| 95 mph (152.89 km/h) | 118.49 mph (190.69 km/h) |
| 100 mph (160.93 km/h) | 124.72 mph (200.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1550 | 1801 | 1940 | 2025 | 2118 | 2184 | 2256 | 2342 | 2461 | 2579 | 2711 | 2817 | 3008 | 3219 | 3384 | 3490 | 3549 | 3767 | 4070 | 4730 |
Better Fuel Economy Factory Ratios Increased Power
