Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-18 | 275/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.16 (842.2) | 34.24 (869.7) | 1.08 (27.5) 3.3% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 104.17 (2645.85) | 107.57 (2732.24) | 3.4 (86.39) 3.3% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 8.12 (206.25) | 0.54 (13.75) 7.1% |
| Revolutions per mile (km) | 608.25 (377.95) | 589.02 (366) | -19.23 (-11.95) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.65 mph (33.24 km/h) |
| 25 mph (40.23 km/h) | 25.82 mph (41.55 km/h) |
| 30 mph (48.28 km/h) | 30.98 mph (49.86 km/h) |
| 35 mph (56.33 km/h) | 36.14 mph (58.17 km/h) |
| 40 mph (64.37 km/h) | 41.31 mph (66.48 km/h) |
| 45 mph (72.42 km/h) | 46.47 mph (74.79 km/h) |
| 50 mph (80.47 km/h) | 51.63 mph (83.09 km/h) |
| 55 mph (88.51 km/h) | 56.8 mph (91.4 km/h) |
| 60 mph (96.56 km/h) | 61.96 mph (99.71 km/h) |
| 65 mph (104.61 km/h) | 67.12 mph (108.02 km/h) |
| 70 mph (112.65 km/h) | 72.29 mph (116.33 km/h) |
| 75 mph (120.7 km/h) | 77.45 mph (124.64 km/h) |
| 80 mph (128.75 km/h) | 82.61 mph (132.95 km/h) |
| 85 mph (136.79 km/h) | 87.78 mph (141.26 km/h) |
| 90 mph (144.84 km/h) | 92.94 mph (149.57 km/h) |
| 95 mph (152.89 km/h) | 98.1 mph (157.88 km/h) |
| 100 mph (160.93 km/h) | 103.27 mph (166.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1499 | 1741 | 1875 | 1958 | 2047 | 2111 | 2181 | 2264 | 2379 | 2494 | 2622 | 2724 | 2909 | 3113 | 3272 | 3374 | 3432 | 3642 | 3936 | 4573 |
Better Fuel Economy Factory Ratios Increased Power
