Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/90-16 | 32/7.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.94 (811.4) | 32.09 (815.14) | 0.15 (3.74) 0.5% |
| Width inches (mm) | 8.86 (225) | 7.52 (191) | -1.34 (-34) -15.1% |
| Circum. inches (mm) | 100.36 (2549.09) | 100.82 (2560.84) | 0.46 (11.75) 0.5% |
| Sidewall Height inches (mm) | 7.97 (202.5) | 8.05 (204.37) | 0.07 (1.87) 0.9% |
| Revolutions per mile (km) | 631.34 (392.3) | 628.44 (390.5) | -2.9 (-1.8) -0.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.09 mph (32.34 km/h) |
| 25 mph (40.23 km/h) | 25.12 mph (40.42 km/h) |
| 30 mph (48.28 km/h) | 30.14 mph (48.5 km/h) |
| 35 mph (56.33 km/h) | 35.16 mph (56.59 km/h) |
| 40 mph (64.37 km/h) | 40.18 mph (64.67 km/h) |
| 45 mph (72.42 km/h) | 45.21 mph (72.75 km/h) |
| 50 mph (80.47 km/h) | 50.23 mph (80.84 km/h) |
| 55 mph (88.51 km/h) | 55.25 mph (88.92 km/h) |
| 60 mph (96.56 km/h) | 60.28 mph (97.01 km/h) |
| 65 mph (104.61 km/h) | 65.3 mph (105.09 km/h) |
| 70 mph (112.65 km/h) | 70.32 mph (113.17 km/h) |
| 75 mph (120.7 km/h) | 75.35 mph (121.26 km/h) |
| 80 mph (128.75 km/h) | 80.37 mph (129.34 km/h) |
| 85 mph (136.79 km/h) | 85.39 mph (137.43 km/h) |
| 90 mph (144.84 km/h) | 90.41 mph (145.51 km/h) |
| 95 mph (152.89 km/h) | 95.44 mph (153.59 km/h) |
| 100 mph (160.93 km/h) | 100.46 mph (161.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1599 | 1858 | 2001 | 2089 | 2185 | 2253 | 2327 | 2416 | 2538 | 2661 | 2797 | 2906 | 3103 | 3321 | 3491 | 3600 | 3661 | 3886 | 4199 | 4879 |
Better Fuel Economy Factory Ratios Increased Power
