Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/60-18 | 33/12.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.94 (811.2) | 33.02 (838.8) | 1.09 (27.6) 3.4% |
| Width inches (mm) | 11.61 (295) | 12.52 (318) | 0.91 (23) 7.8% |
| Circum. inches (mm) | 100.33 (2548.46) | 103.75 (2635.17) | 3.41 (86.71) 3.4% |
| Sidewall Height inches (mm) | 6.97 (177) | 7.51 (190.8) | 0.54 (13.8) 7.8% |
| Revolutions per mile (km) | 631.5 (392.39) | 610.72 (379.48) | -20.78 (-12.91) -3.3% |
33/12.5-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.68 mph (33.28 km/h) |
| 25 mph (40.23 km/h) | 25.85 mph (41.6 km/h) |
| 30 mph (48.28 km/h) | 31.02 mph (49.92 km/h) |
| 35 mph (56.33 km/h) | 36.19 mph (58.24 km/h) |
| 40 mph (64.37 km/h) | 41.36 mph (66.56 km/h) |
| 45 mph (72.42 km/h) | 46.53 mph (74.88 km/h) |
| 50 mph (80.47 km/h) | 51.7 mph (83.21 km/h) |
| 55 mph (88.51 km/h) | 56.87 mph (91.53 km/h) |
| 60 mph (96.56 km/h) | 62.04 mph (99.85 km/h) |
| 65 mph (104.61 km/h) | 67.21 mph (108.17 km/h) |
| 70 mph (112.65 km/h) | 72.38 mph (116.49 km/h) |
| 75 mph (120.7 km/h) | 77.55 mph (124.81 km/h) |
| 80 mph (128.75 km/h) | 82.72 mph (133.13 km/h) |
| 85 mph (136.79 km/h) | 87.89 mph (141.45 km/h) |
| 90 mph (144.84 km/h) | 93.06 mph (149.77 km/h) |
| 95 mph (152.89 km/h) | 98.23 mph (158.09 km/h) |
| 100 mph (160.93 km/h) | 103.4 mph (166.41 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 | 1805 | 1944 | 2030 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3016 | 3227 | 3393 | 3499 | 3558 | 3776 | 4080 | 4742 |
Better Fuel Economy Factory Ratios Increased Power
