Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/65-17 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.54 (750.3) | 31.56 (801.7) | 2.02 (51.4) 6.9% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 92.8 (2357.14) | 99.16 (2518.61) | 6.36 (161.48) 6.9% |
| Sidewall Height inches (mm) | 6.27 (159.25) | 6.78 (172.25) | 0.51 (13) 8.2% |
| Revolutions per mile (km) | 682.75 (424.24) | 638.98 (397.04) | -43.77 (-27.2) -6.4% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.37 mph (34.39 km/h) |
| 25 mph (40.23 km/h) | 26.71 mph (42.99 km/h) |
| 30 mph (48.28 km/h) | 32.06 mph (51.59 km/h) |
| 35 mph (56.33 km/h) | 37.4 mph (60.19 km/h) |
| 40 mph (64.37 km/h) | 42.74 mph (68.78 km/h) |
| 45 mph (72.42 km/h) | 48.08 mph (77.38 km/h) |
| 50 mph (80.47 km/h) | 53.43 mph (85.98 km/h) |
| 55 mph (88.51 km/h) | 58.77 mph (94.58 km/h) |
| 60 mph (96.56 km/h) | 64.11 mph (103.18 km/h) |
| 65 mph (104.61 km/h) | 69.45 mph (111.77 km/h) |
| 70 mph (112.65 km/h) | 74.8 mph (120.37 km/h) |
| 75 mph (120.7 km/h) | 80.14 mph (128.97 km/h) |
| 80 mph (128.75 km/h) | 85.48 mph (137.57 km/h) |
| 85 mph (136.79 km/h) | 90.82 mph (146.17 km/h) |
| 90 mph (144.84 km/h) | 96.17 mph (154.76 km/h) |
| 95 mph (152.89 km/h) | 101.51 mph (163.36 km/h) |
| 100 mph (160.93 km/h) | 106.85 mph (171.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1626 | 1889 | 2034 | 2124 | 2221 | 2290 | 2366 | 2456 | 2581 | 2706 | 2844 | 2955 | 3155 | 3377 | 3550 | 3660 | 3723 | 3951 | 4269 | 4961 |
Better Fuel Economy Factory Ratios Increased Power
