Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/30-18 | 330/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.97 (634.2) | 25.8 (655.2) | 0.83 (21) 3.3% |
| Width inches (mm) | 11.61 (295) | 12.99 (330) | 1.38 (35) 11.9% |
| Circum. inches (mm) | 78.44 (1992.4) | 81.04 (2058.37) | 2.6 (65.97) 3.3% |
| Sidewall Height inches (mm) | 3.48 (88.5) | 3.9 (99) | 0.41 (10.5) 11.9% |
| Revolutions per mile (km) | 807.74 (501.91) | 781.85 (485.82) | -25.89 (-16.09) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.83 mph (41.57 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.88 km/h) |
| 35 mph (56.33 km/h) | 36.16 mph (58.19 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.51 km/h) |
| 45 mph (72.42 km/h) | 46.49 mph (74.82 km/h) |
| 50 mph (80.47 km/h) | 51.66 mph (83.13 km/h) |
| 55 mph (88.51 km/h) | 56.82 mph (91.45 km/h) |
| 60 mph (96.56 km/h) | 61.99 mph (99.76 km/h) |
| 65 mph (104.61 km/h) | 67.15 mph (108.07 km/h) |
| 70 mph (112.65 km/h) | 72.32 mph (116.38 km/h) |
| 75 mph (120.7 km/h) | 77.48 mph (124.7 km/h) |
| 80 mph (128.75 km/h) | 82.65 mph (133.01 km/h) |
| 85 mph (136.79 km/h) | 87.81 mph (141.32 km/h) |
| 90 mph (144.84 km/h) | 92.98 mph (149.64 km/h) |
| 95 mph (152.89 km/h) | 98.15 mph (157.95 km/h) |
| 100 mph (160.93 km/h) | 103.31 mph (166.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | 2311 | 2489 | 2599 | 2718 | 2802 | 2896 | 3006 | 3158 | 3310 | 3480 | 3615 | 3861 | 4132 | 4343 | 4479 | 4555 | 4834 | 5224 | 6071 |
Better Fuel Economy Factory Ratios Increased Power
