Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/30-18 | 285/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.91 (658.2) | 24.73 (628.2) | -1.18 (-30) -4.6% |
| Width inches (mm) | 13.19 (335) | 11.22 (285) | -1.97 (-50) -14.9% |
| Circum. inches (mm) | 81.41 (2067.8) | 77.7 (1973.55) | -3.71 (-94.25) -4.6% |
| Sidewall Height inches (mm) | 3.96 (100.5) | 3.37 (85.5) | -0.59 (-15) -14.9% |
| Revolutions per mile (km) | 778.29 (483.61) | 815.46 (506.7) | 37.17 (23.09) 4.8% |
285/30-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.09 mph (30.72 km/h) |
| 25 mph (40.23 km/h) | 23.86 mph (38.4 km/h) |
| 30 mph (48.28 km/h) | 28.63 mph (46.08 km/h) |
| 35 mph (56.33 km/h) | 33.4 mph (53.76 km/h) |
| 40 mph (64.37 km/h) | 38.18 mph (61.44 km/h) |
| 45 mph (72.42 km/h) | 42.95 mph (69.12 km/h) |
| 50 mph (80.47 km/h) | 47.72 mph (76.8 km/h) |
| 55 mph (88.51 km/h) | 52.49 mph (84.48 km/h) |
| 60 mph (96.56 km/h) | 57.27 mph (92.16 km/h) |
| 65 mph (104.61 km/h) | 62.04 mph (99.84 km/h) |
| 70 mph (112.65 km/h) | 66.81 mph (107.52 km/h) |
| 75 mph (120.7 km/h) | 71.58 mph (115.2 km/h) |
| 80 mph (128.75 km/h) | 76.35 mph (122.88 km/h) |
| 85 mph (136.79 km/h) | 81.13 mph (130.56 km/h) |
| 90 mph (144.84 km/h) | 85.9 mph (138.24 km/h) |
| 95 mph (152.89 km/h) | 90.67 mph (145.92 km/h) |
| 100 mph (160.93 km/h) | 95.44 mph (153.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2075 | 2411 | 2596 | 2711 | 2835 | 2923 | 3020 | 3135 | 3294 | 3453 | 3629 | 3771 | 4027 | 4309 | 4530 | 4671 | 4751 | 5042 | 5448 | 6332 |
Better Fuel Economy Factory Ratios Increased Power
