Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.47 (773.9) | 31.56 (801.7) | 1.09 (27.8) 3.6% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circum. inches (mm) | 95.72 (2431.28) | 99.16 (2518.61) | 3.44 (87.34) 3.6% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 6.78 (172.25) | -0.45 (-11.5) -6.3% |
| Revolutions per mile (km) | 661.93 (411.31) | 638.98 (397.04) | -22.95 (-14.26) -3.5% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.72 mph (33.34 km/h) |
| 25 mph (40.23 km/h) | 25.9 mph (41.68 km/h) |
| 30 mph (48.28 km/h) | 31.08 mph (50.01 km/h) |
| 35 mph (56.33 km/h) | 36.26 mph (58.35 km/h) |
| 40 mph (64.37 km/h) | 41.44 mph (66.69 km/h) |
| 45 mph (72.42 km/h) | 46.62 mph (75.02 km/h) |
| 50 mph (80.47 km/h) | 51.8 mph (83.36 km/h) |
| 55 mph (88.51 km/h) | 56.98 mph (91.69 km/h) |
| 60 mph (96.56 km/h) | 62.16 mph (100.03 km/h) |
| 65 mph (104.61 km/h) | 67.33 mph (108.37 km/h) |
| 70 mph (112.65 km/h) | 72.51 mph (116.7 km/h) |
| 75 mph (120.7 km/h) | 77.69 mph (125.04 km/h) |
| 80 mph (128.75 km/h) | 82.87 mph (133.37 km/h) |
| 85 mph (136.79 km/h) | 88.05 mph (141.71 km/h) |
| 90 mph (144.84 km/h) | 93.23 mph (150.04 km/h) |
| 95 mph (152.89 km/h) | 98.41 mph (158.38 km/h) |
| 100 mph (160.93 km/h) | 103.59 mph (166.72 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 |
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