Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/50-19 | 255/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.43 (747.6) | 29.04 (737.7) | -0.39 (-9.9) -1.3% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 92.47 (2348.65) | 91.24 (2317.55) | -1.22 (-31.1) -1.3% |
| Sidewall Height inches (mm) | 5.22 (132.5) | 5.52 (140.25) | 0.31 (7.75) 5.8% |
| Revolutions per mile (km) | 685.22 (425.77) | 694.42 (431.49) | 9.2 (5.71) 1.3% |
255/55-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.76 km/h) |
| 25 mph (40.23 km/h) | 24.67 mph (39.7 km/h) |
| 30 mph (48.28 km/h) | 29.6 mph (47.64 km/h) |
| 35 mph (56.33 km/h) | 34.54 mph (55.58 km/h) |
| 40 mph (64.37 km/h) | 39.47 mph (63.52 km/h) |
| 45 mph (72.42 km/h) | 44.4 mph (71.46 km/h) |
| 50 mph (80.47 km/h) | 49.34 mph (79.4 km/h) |
| 55 mph (88.51 km/h) | 54.27 mph (87.34 km/h) |
| 60 mph (96.56 km/h) | 59.21 mph (95.28 km/h) |
| 65 mph (104.61 km/h) | 64.14 mph (103.22 km/h) |
| 70 mph (112.65 km/h) | 69.07 mph (111.16 km/h) |
| 75 mph (120.7 km/h) | 74.01 mph (119.1 km/h) |
| 80 mph (128.75 km/h) | 78.94 mph (127.04 km/h) |
| 85 mph (136.79 km/h) | 83.87 mph (134.98 km/h) |
| 90 mph (144.84 km/h) | 88.81 mph (142.92 km/h) |
| 95 mph (152.89 km/h) | 93.74 mph (150.86 km/h) |
| 100 mph (160.93 km/h) | 98.68 mph (158.8 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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