Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-16 | 385/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.4) | 37.22 (945.4) | 5.16 (131) 16.1% |
| Width inches (mm) | 10.04 (255) | 15.16 (385) | 5.12 (130) 51% |
| Circum. inches (mm) | 100.73 (2558.51) | 116.93 (2970.06) | 16.2 (411.55) 16.1% |
| Sidewall Height inches (mm) | 8.03 (204) | 10.61 (269.5) | 2.58 (65.5) 32.1% |
| Revolutions per mile (km) | 629.02 (390.85) | 541.86 (336.69) | -87.16 (-54.16) -13.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.22 mph (37.36 km/h) |
| 25 mph (40.23 km/h) | 29.02 mph (46.71 km/h) |
| 30 mph (48.28 km/h) | 34.83 mph (56.05 km/h) |
| 35 mph (56.33 km/h) | 40.63 mph (65.39 km/h) |
| 40 mph (64.37 km/h) | 46.43 mph (74.73 km/h) |
| 45 mph (72.42 km/h) | 52.24 mph (84.07 km/h) |
| 50 mph (80.47 km/h) | 58.04 mph (93.41 km/h) |
| 55 mph (88.51 km/h) | 63.85 mph (102.75 km/h) |
| 60 mph (96.56 km/h) | 69.65 mph (112.09 km/h) |
| 65 mph (104.61 km/h) | 75.46 mph (121.43 km/h) |
| 70 mph (112.65 km/h) | 81.26 mph (130.78 km/h) |
| 75 mph (120.7 km/h) | 87.06 mph (140.12 km/h) |
| 80 mph (128.75 km/h) | 92.87 mph (149.46 km/h) |
| 85 mph (136.79 km/h) | 98.67 mph (158.8 km/h) |
| 90 mph (144.84 km/h) | 104.48 mph (168.14 km/h) |
| 95 mph (152.89 km/h) | 110.28 mph (177.48 km/h) |
| 100 mph (160.93 km/h) | 116.09 mph (186.82 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 | 1801 | 1884 | 1942 | 2007 | 2083 | 2189 | 2294 | 2412 | 2506 | 2676 | 2863 | 3010 | 3104 | 3157 | 3350 | 3620 | 4207 |
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