Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-16 | 275/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.16 (791.4) | 33.16 (842.2) | 2 (50.8) 6.4% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 97.88 (2486.26) | 104.17 (2645.85) | 6.28 (159.59) 6.4% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 7.58 (192.5) | 0 (0) 0% |
| Revolutions per mile (km) | 647.3 (402.21) | 608.25 (377.95) | -39.04 (-24.26) -6% |
275/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.28 mph (34.25 km/h) |
| 25 mph (40.23 km/h) | 26.6 mph (42.82 km/h) |
| 30 mph (48.28 km/h) | 31.93 mph (51.38 km/h) |
| 35 mph (56.33 km/h) | 37.25 mph (59.94 km/h) |
| 40 mph (64.37 km/h) | 42.57 mph (68.51 km/h) |
| 45 mph (72.42 km/h) | 47.89 mph (77.07 km/h) |
| 50 mph (80.47 km/h) | 53.21 mph (85.63 km/h) |
| 55 mph (88.51 km/h) | 58.53 mph (94.2 km/h) |
| 60 mph (96.56 km/h) | 63.85 mph (102.76 km/h) |
| 65 mph (104.61 km/h) | 69.17 mph (111.32 km/h) |
| 70 mph (112.65 km/h) | 74.49 mph (119.89 km/h) |
| 75 mph (120.7 km/h) | 79.81 mph (128.45 km/h) |
| 80 mph (128.75 km/h) | 85.14 mph (137.01 km/h) |
| 85 mph (136.79 km/h) | 90.46 mph (145.58 km/h) |
| 90 mph (144.84 km/h) | 95.78 mph (154.14 km/h) |
| 95 mph (152.89 km/h) | 101.1 mph (162.7 km/h) |
| 100 mph (160.93 km/h) | 106.42 mph (171.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1548 | 1798 | 1937 | 2022 | 2114 | 2180 | 2253 | 2338 | 2457 | 2575 | 2707 | 2813 | 3004 | 3214 | 3379 | 3484 | 3544 | 3761 | 4064 | 4723 |
Better Fuel Economy Factory Ratios Increased Power
