Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 255/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 29.04 (737.7) | -1.48 (-37.5) -4.8% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 95.88 (2435.36) | 91.24 (2317.55) | -4.64 (-117.81) -4.8% |
| Sidewall Height inches (mm) | 6.26 (159) | 5.52 (140.25) | -0.74 (-18.75) -11.8% |
| Revolutions per mile (km) | 660.82 (410.62) | 694.42 (431.49) | 33.59 (20.87) 5.1% |
255/55-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.03 mph (30.63 km/h) |
| 25 mph (40.23 km/h) | 23.79 mph (38.29 km/h) |
| 30 mph (48.28 km/h) | 28.55 mph (45.94 km/h) |
| 35 mph (56.33 km/h) | 33.31 mph (53.6 km/h) |
| 40 mph (64.37 km/h) | 38.07 mph (61.26 km/h) |
| 45 mph (72.42 km/h) | 42.82 mph (68.92 km/h) |
| 50 mph (80.47 km/h) | 47.58 mph (76.57 km/h) |
| 55 mph (88.51 km/h) | 52.34 mph (84.23 km/h) |
| 60 mph (96.56 km/h) | 57.1 mph (91.89 km/h) |
| 65 mph (104.61 km/h) | 61.86 mph (99.55 km/h) |
| 70 mph (112.65 km/h) | 66.61 mph (107.2 km/h) |
| 75 mph (120.7 km/h) | 71.37 mph (114.86 km/h) |
| 80 mph (128.75 km/h) | 76.13 mph (122.52 km/h) |
| 85 mph (136.79 km/h) | 80.89 mph (130.18 km/h) |
| 90 mph (144.84 km/h) | 85.65 mph (137.83 km/h) |
| 95 mph (152.89 km/h) | 90.4 mph (145.49 km/h) |
| 100 mph (160.93 km/h) | 95.16 mph (153.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1767 | 2053 | 2211 | 2309 | 2414 | 2489 | 2572 | 2670 | 2805 | 2940 | 3091 | 3211 | 3429 | 3670 | 3858 | 3978 | 4046 | 4294 | 4640 | 5392 |
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