Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/60-18 | 395/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.32 (643.2) | 37.22 (945.3) | 11.89 (302.1) 47% |
| Width inches (mm) | 6.1 (155) | 15.55 (395) | 9.45 (240) 154.8% |
| Circum. inches (mm) | 79.55 (2020.67) | 116.92 (2969.75) | 37.37 (949.08) 47% |
| Sidewall Height inches (mm) | 3.66 (93) | 10.11 (256.75) | 6.45 (163.75) 176.1% |
| Revolutions per mile (km) | 796.44 (494.88) | 541.91 (336.73) | -254.53 (-158.16) -32% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.39 mph (47.3 km/h) |
| 25 mph (40.23 km/h) | 36.74 mph (59.13 km/h) |
| 30 mph (48.28 km/h) | 44.09 mph (70.96 km/h) |
| 35 mph (56.33 km/h) | 51.44 mph (82.78 km/h) |
| 40 mph (64.37 km/h) | 58.79 mph (94.61 km/h) |
| 45 mph (72.42 km/h) | 66.14 mph (106.44 km/h) |
| 50 mph (80.47 km/h) | 73.48 mph (118.26 km/h) |
| 55 mph (88.51 km/h) | 80.83 mph (130.09 km/h) |
| 60 mph (96.56 km/h) | 88.18 mph (141.91 km/h) |
| 65 mph (104.61 km/h) | 95.53 mph (153.74 km/h) |
| 70 mph (112.65 km/h) | 102.88 mph (165.57 km/h) |
| 75 mph (120.7 km/h) | 110.23 mph (177.39 km/h) |
| 80 mph (128.75 km/h) | 117.57 mph (189.22 km/h) |
| 85 mph (136.79 km/h) | 124.92 mph (201.04 km/h) |
| 90 mph (144.84 km/h) | 132.27 mph (212.87 km/h) |
| 95 mph (152.89 km/h) | 139.62 mph (224.7 km/h) |
| 100 mph (160.93 km/h) | 146.97 mph (236.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1379 | 1602 | 1725 | 1802 | 1884 | 1942 | 2007 | 2083 | 2189 | 2295 | 2412 | 2506 | 2676 | 2864 | 3010 | 3104 | 3157 | 3351 | 3621 | 4208 |
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