Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-19 | 255/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.61 (853.6) | 32.06 (814.2) | -1.55 (-39.4) -4.6% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 105.58 (2681.66) | 100.7 (2557.88) | -4.87 (-123.78) -4.6% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 7.03 (178.5) | -0.28 (-7) -3.8% |
| Revolutions per mile (km) | 600.13 (372.9) | 629.17 (390.95) | 29.04 (18.05) 4.8% |
255/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.08 mph (30.7 km/h) |
| 25 mph (40.23 km/h) | 23.85 mph (38.38 km/h) |
| 30 mph (48.28 km/h) | 28.62 mph (46.05 km/h) |
| 35 mph (56.33 km/h) | 33.38 mph (53.73 km/h) |
| 40 mph (64.37 km/h) | 38.15 mph (61.4 km/h) |
| 45 mph (72.42 km/h) | 42.92 mph (69.08 km/h) |
| 50 mph (80.47 km/h) | 47.69 mph (76.75 km/h) |
| 55 mph (88.51 km/h) | 52.46 mph (84.43 km/h) |
| 60 mph (96.56 km/h) | 57.23 mph (92.1 km/h) |
| 65 mph (104.61 km/h) | 62 mph (99.78 km/h) |
| 70 mph (112.65 km/h) | 66.77 mph (107.45 km/h) |
| 75 mph (120.7 km/h) | 71.54 mph (115.13 km/h) |
| 80 mph (128.75 km/h) | 76.31 mph (122.81 km/h) |
| 85 mph (136.79 km/h) | 81.08 mph (130.48 km/h) |
| 90 mph (144.84 km/h) | 85.85 mph (138.16 km/h) |
| 95 mph (152.89 km/h) | 90.62 mph (145.83 km/h) |
| 100 mph (160.93 km/h) | 95.38 mph (153.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1601 | 1860 | 2003 | 2092 | 2187 | 2255 | 2330 | 2419 | 2541 | 2664 | 2800 | 2909 | 3107 | 3325 | 3495 | 3604 | 3666 | 3890 | 4204 | 4885 |
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