Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-16 | 32/12-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.47 (926.4) | 32.09 (815.1) | -4.38 (-111.3) -12% |
| Width inches (mm) | 12.8 (325) | 12.01 (305) | -0.79 (-20) -6.2% |
| Circum. inches (mm) | 114.58 (2910.37) | 100.82 (2560.71) | -13.77 (-349.66) -12% |
| Sidewall Height inches (mm) | 10.24 (260) | 8.05 (204.35) | -2.19 (-55.65) -21.4% |
| Revolutions per mile (km) | 552.97 (343.6) | 628.48 (390.52) | 75.51 (46.92) 13.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.6 mph (28.32 km/h) |
| 25 mph (40.23 km/h) | 22 mph (35.4 km/h) |
| 30 mph (48.28 km/h) | 26.4 mph (42.48 km/h) |
| 35 mph (56.33 km/h) | 30.8 mph (49.56 km/h) |
| 40 mph (64.37 km/h) | 35.19 mph (56.64 km/h) |
| 45 mph (72.42 km/h) | 39.59 mph (63.72 km/h) |
| 50 mph (80.47 km/h) | 43.99 mph (70.8 km/h) |
| 55 mph (88.51 km/h) | 48.39 mph (77.88 km/h) |
| 60 mph (96.56 km/h) | 52.79 mph (84.96 km/h) |
| 65 mph (104.61 km/h) | 57.19 mph (92.04 km/h) |
| 70 mph (112.65 km/h) | 61.59 mph (99.12 km/h) |
| 75 mph (120.7 km/h) | 65.99 mph (106.2 km/h) |
| 80 mph (128.75 km/h) | 70.39 mph (113.28 km/h) |
| 85 mph (136.79 km/h) | 74.79 mph (120.36 km/h) |
| 90 mph (144.84 km/h) | 79.19 mph (127.44 km/h) |
| 95 mph (152.89 km/h) | 83.59 mph (134.52 km/h) |
| 100 mph (160.93 km/h) | 87.99 mph (141.6 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 | 2328 | 2416 | 2539 | 2661 | 2797 | 2906 | 3103 | 3321 | 3491 | 3600 | 3661 | 3886 | 4199 | 4880 |
Better Fuel Economy Factory Ratios Increased Power
