Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-18 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.06 (865.2) | 31.56 (801.7) | -2.5 (-63.5) -7.3% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 107.01 (2718.11) | 99.16 (2518.61) | -7.85 (-199.49) -7.3% |
| Sidewall Height inches (mm) | 8.03 (204) | 6.78 (172.25) | -1.25 (-31.75) -15.6% |
| Revolutions per mile (km) | 592.08 (367.9) | 638.98 (397.04) | 46.9 (29.14) 7.9% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.53 mph (29.82 km/h) |
| 25 mph (40.23 km/h) | 23.17 mph (37.28 km/h) |
| 30 mph (48.28 km/h) | 27.8 mph (44.74 km/h) |
| 35 mph (56.33 km/h) | 32.43 mph (52.19 km/h) |
| 40 mph (64.37 km/h) | 37.06 mph (59.65 km/h) |
| 45 mph (72.42 km/h) | 41.7 mph (67.11 km/h) |
| 50 mph (80.47 km/h) | 46.33 mph (74.56 km/h) |
| 55 mph (88.51 km/h) | 50.96 mph (82.02 km/h) |
| 60 mph (96.56 km/h) | 55.6 mph (89.47 km/h) |
| 65 mph (104.61 km/h) | 60.23 mph (96.93 km/h) |
| 70 mph (112.65 km/h) | 64.86 mph (104.39 km/h) |
| 75 mph (120.7 km/h) | 69.5 mph (111.84 km/h) |
| 80 mph (128.75 km/h) | 74.13 mph (119.3 km/h) |
| 85 mph (136.79 km/h) | 78.76 mph (126.75 km/h) |
| 90 mph (144.84 km/h) | 83.39 mph (134.21 km/h) |
| 95 mph (152.89 km/h) | 88.03 mph (141.67 km/h) |
| 100 mph (160.93 km/h) | 92.66 mph (149.12 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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