Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/70-22.5 | 285/75-24.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 39.31 (998.5) | 41.33 (1049.8) | 2.02 (51.3) 5.1% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 123.5 (3136.88) | 129.84 (3298.04) | 6.35 (161.16) 5.1% |
| Sidewall Height inches (mm) | 8.41 (213.5) | 8.42 (213.75) | 0.01 (0.25) 0.1% |
| Revolutions per mile (km) | 513.04 (318.79) | 487.97 (303.21) | -25.07 (-15.58) -4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.03 mph (33.84 km/h) |
| 25 mph (40.23 km/h) | 26.28 mph (42.3 km/h) |
| 30 mph (48.28 km/h) | 31.54 mph (50.76 km/h) |
| 35 mph (56.33 km/h) | 36.8 mph (59.22 km/h) |
| 40 mph (64.37 km/h) | 42.06 mph (67.68 km/h) |
| 45 mph (72.42 km/h) | 47.31 mph (76.14 km/h) |
| 50 mph (80.47 km/h) | 52.57 mph (84.6 km/h) |
| 55 mph (88.51 km/h) | 57.83 mph (93.06 km/h) |
| 60 mph (96.56 km/h) | 63.08 mph (101.52 km/h) |
| 65 mph (104.61 km/h) | 68.34 mph (109.98 km/h) |
| 70 mph (112.65 km/h) | 73.6 mph (118.44 km/h) |
| 75 mph (120.7 km/h) | 78.85 mph (126.9 km/h) |
| 80 mph (128.75 km/h) | 84.11 mph (135.36 km/h) |
| 85 mph (136.79 km/h) | 89.37 mph (143.82 km/h) |
| 90 mph (144.84 km/h) | 94.62 mph (152.28 km/h) |
| 95 mph (152.89 km/h) | 99.88 mph (160.74 km/h) |
| 100 mph (160.93 km/h) | 105.14 mph (169.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1242 | 1443 | 1554 | 1622 | 1696 | 1749 | 1807 | 1876 | 1971 | 2066 | 2172 | 2256 | 2410 | 2579 | 2711 | 2795 | 2843 | 3017 | 3260 | 3789 |
Better Fuel Economy Factory Ratios Increased Power
