Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 256/60-18 | 265/85-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.09 (764.4) | 35.74 (907.7) | 5.64 (143.3) 18.7% |
| Width inches (mm) | 10.08 (256) | 10.43 (265) | 0.35 (9) 3.5% |
| Circum. inches (mm) | 94.54 (2401.43) | 112.27 (2851.62) | 17.72 (450.19) 18.7% |
| Sidewall Height inches (mm) | 6.05 (153.6) | 8.87 (225.25) | 2.82 (71.65) 46.6% |
| Revolutions per mile (km) | 670.16 (416.42) | 564.36 (350.68) | -105.8 (-65.74) -15.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.75 mph (38.22 km/h) |
| 25 mph (40.23 km/h) | 29.69 mph (47.78 km/h) |
| 30 mph (48.28 km/h) | 35.62 mph (57.33 km/h) |
| 35 mph (56.33 km/h) | 41.56 mph (66.89 km/h) |
| 40 mph (64.37 km/h) | 47.5 mph (76.44 km/h) |
| 45 mph (72.42 km/h) | 53.44 mph (86 km/h) |
| 50 mph (80.47 km/h) | 59.37 mph (95.55 km/h) |
| 55 mph (88.51 km/h) | 65.31 mph (105.11 km/h) |
| 60 mph (96.56 km/h) | 71.25 mph (114.66 km/h) |
| 65 mph (104.61 km/h) | 77.19 mph (124.22 km/h) |
| 70 mph (112.65 km/h) | 83.12 mph (133.77 km/h) |
| 75 mph (120.7 km/h) | 89.06 mph (143.33 km/h) |
| 80 mph (128.75 km/h) | 95 mph (152.88 km/h) |
| 85 mph (136.79 km/h) | 100.93 mph (162.44 km/h) |
| 90 mph (144.84 km/h) | 106.87 mph (171.99 km/h) |
| 95 mph (152.89 km/h) | 112.81 mph (181.55 km/h) |
| 100 mph (160.93 km/h) | 118.75 mph (191.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1436 | 1668 | 1797 | 1876 | 1962 | 2023 | 2090 | 2170 | 2280 | 2390 | 2512 | 2610 | 2787 | 2982 | 3135 | 3233 | 3288 | 3490 | 3771 | 4382 |
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