Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 30/9.5-15 | 255/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.99 (761.78) | 30.06 (763.5) | 0.07 (1.72) 0.2% |
| Width inches (mm) | 9.49 (241) | 10.04 (255) | 0.55 (14) 5.8% |
| Circum. inches (mm) | 94.22 (2393.2) | 94.43 (2398.61) | 0.21 (5.4) 0.2% |
| Sidewall Height inches (mm) | 7.5 (190.39) | 7.53 (191.25) | 0.03 (0.86) 0.5% |
| Revolutions per mile (km) | 672.46 (417.85) | 670.95 (416.91) | -1.51 (-0.94) -0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.05 mph (32.26 km/h) |
| 25 mph (40.23 km/h) | 25.06 mph (40.32 km/h) |
| 30 mph (48.28 km/h) | 30.07 mph (48.39 km/h) |
| 35 mph (56.33 km/h) | 35.08 mph (56.45 km/h) |
| 40 mph (64.37 km/h) | 40.09 mph (64.52 km/h) |
| 45 mph (72.42 km/h) | 45.1 mph (72.58 km/h) |
| 50 mph (80.47 km/h) | 50.11 mph (80.65 km/h) |
| 55 mph (88.51 km/h) | 55.12 mph (88.71 km/h) |
| 60 mph (96.56 km/h) | 60.14 mph (96.78 km/h) |
| 65 mph (104.61 km/h) | 65.15 mph (104.84 km/h) |
| 70 mph (112.65 km/h) | 70.16 mph (112.91 km/h) |
| 75 mph (120.7 km/h) | 75.17 mph (120.97 km/h) |
| 80 mph (128.75 km/h) | 80.18 mph (129.04 km/h) |
| 85 mph (136.79 km/h) | 85.19 mph (137.1 km/h) |
| 90 mph (144.84 km/h) | 90.2 mph (145.17 km/h) |
| 95 mph (152.89 km/h) | 95.21 mph (153.23 km/h) |
| 100 mph (160.93 km/h) | 100.23 mph (161.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1707 | 1984 | 2136 | 2231 | 2332 | 2405 | 2485 | 2579 | 2710 | 2841 | 2986 | 3102 | 3313 | 3546 | 3727 | 3844 | 3909 | 4149 | 4483 | 5210 |
Better Fuel Economy Factory Ratios Increased Power
