Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-17 | 265/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.88 (809.8) | 31.56 (801.7) | -0.32 (-8.1) -1% |
| Width inches (mm) | 10.63 (270) | 10.43 (265) | -0.2 (-5) -1.9% |
| Circum. inches (mm) | 100.16 (2544.06) | 99.16 (2518.61) | -1 (-25.45) -1% |
| Sidewall Height inches (mm) | 7.44 (189) | 6.78 (172.25) | -0.66 (-16.75) -8.9% |
| Revolutions per mile (km) | 632.59 (393.07) | 638.98 (397.04) | 6.39 (3.97) 1% |
265/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.8 mph (31.86 km/h) |
| 25 mph (40.23 km/h) | 24.75 mph (39.83 km/h) |
| 30 mph (48.28 km/h) | 29.7 mph (47.8 km/h) |
| 35 mph (56.33 km/h) | 34.65 mph (55.76 km/h) |
| 40 mph (64.37 km/h) | 39.6 mph (63.73 km/h) |
| 45 mph (72.42 km/h) | 44.55 mph (71.7 km/h) |
| 50 mph (80.47 km/h) | 49.5 mph (79.66 km/h) |
| 55 mph (88.51 km/h) | 54.45 mph (87.63 km/h) |
| 60 mph (96.56 km/h) | 59.4 mph (95.59 km/h) |
| 65 mph (104.61 km/h) | 64.35 mph (103.56 km/h) |
| 70 mph (112.65 km/h) | 69.3 mph (111.53 km/h) |
| 75 mph (120.7 km/h) | 74.25 mph (119.49 km/h) |
| 80 mph (128.75 km/h) | 79.2 mph (127.46 km/h) |
| 85 mph (136.79 km/h) | 84.15 mph (135.43 km/h) |
| 90 mph (144.84 km/h) | 89.1 mph (143.39 km/h) |
| 95 mph (152.89 km/h) | 94.05 mph (151.36 km/h) |
| 100 mph (160.93 km/h) | 99 mph (159.32 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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