Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-16 | 32/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.88 (784.4) | 32.03 (813.44) | 1.14 (29.04) 3.7% |
| Width inches (mm) | 10.63 (270) | 12.52 (318) | 1.89 (48) 17.8% |
| Circum. inches (mm) | 97.02 (2464.27) | 100.61 (2555.5) | 3.59 (91.23) 3.7% |
| Sidewall Height inches (mm) | 7.44 (189) | 8.01 (203.52) | 0.57 (14.52) 7.7% |
| Revolutions per mile (km) | 653.07 (405.8) | 629.76 (391.31) | -23.31 (-14.49) -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 (116.82 km/h) |
| 75 mph (120.7 km/h) | 77.78 mph (125.17 km/h) |
| 80 mph (128.75 km/h) | 82.96 mph (133.51 km/h) |
| 85 mph (136.79 km/h) | 88.15 mph (141.86 km/h) |
| 90 mph (144.84 km/h) | 93.33 mph (150.2 km/h) |
| 95 mph (152.89 km/h) | 98.52 mph (158.55 km/h) |
| 100 mph (160.93 km/h) | 103.7 mph (166.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1603 | 1862 | 2005 | 2094 | 2189 | 2257 | 2332 | 2421 | 2544 | 2666 | 2803 | 2912 | 3110 | 3328 | 3498 | 3608 | 3669 | 3894 | 4208 | 4890 |
Better Fuel Economy Factory Ratios Increased Power
