Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-10 | 205/30-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.13 (486) | 19.84 (504) | 0.71 (18) 3.7% |
| Width inches (mm) | 5.71 (145) | 8.07 (205) | 2.36 (60) 41.4% |
| Circum. inches (mm) | 60.11 (1526.81) | 62.34 (1583.36) | 2.23 (56.55) 3.7% |
| Sidewall Height inches (mm) | 4.57 (116) | 2.42 (61.5) | -2.15 (-54.5) -47% |
| Revolutions per mile (km) | 1054.05 (654.96) | 1016.41 (631.57) | -37.64 (-23.39) -3.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.74 mph (33.38 km/h) |
| 25 mph (40.23 km/h) | 25.93 mph (41.72 km/h) |
| 30 mph (48.28 km/h) | 31.11 mph (50.07 km/h) |
| 35 mph (56.33 km/h) | 36.3 mph (58.41 km/h) |
| 40 mph (64.37 km/h) | 41.48 mph (66.76 km/h) |
| 45 mph (72.42 km/h) | 46.67 mph (75.1 km/h) |
| 50 mph (80.47 km/h) | 51.85 mph (83.45 km/h) |
| 55 mph (88.51 km/h) | 57.04 mph (91.79 km/h) |
| 60 mph (96.56 km/h) | 62.22 mph (100.14 km/h) |
| 65 mph (104.61 km/h) | 67.41 mph (108.48 km/h) |
| 70 mph (112.65 km/h) | 72.59 mph (116.83 km/h) |
| 75 mph (120.7 km/h) | 77.78 mph (125.17 km/h) |
| 80 mph (128.75 km/h) | 82.96 mph (133.52 km/h) |
| 85 mph (136.79 km/h) | 88.15 mph (141.86 km/h) |
| 90 mph (144.84 km/h) | 93.33 mph (150.21 km/h) |
| 95 mph (152.89 km/h) | 98.52 mph (158.55 km/h) |
| 100 mph (160.93 km/h) | 103.7 mph (166.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
