Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/75-16 | 33/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.01 (863.9) | 33.03 (838.88) | -0.99 (-25.02) -2.9% |
| Width inches (mm) | 12.01 (305) | 12.52 (318) | 0.51 (13) 4.3% |
| Circum. inches (mm) | 106.85 (2714.02) | 103.76 (2635.42) | -3.09 (-78.6) -2.9% |
| Sidewall Height inches (mm) | 9.01 (228.75) | 8.51 (216.24) | -0.49 (-12.51) -5.5% |
| Revolutions per mile (km) | 592.97 (368.46) | 610.66 (379.45) | 17.69 (10.99) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.42 mph (31.25 km/h) |
| 25 mph (40.23 km/h) | 24.28 mph (39.07 km/h) |
| 30 mph (48.28 km/h) | 29.13 mph (46.88 km/h) |
| 35 mph (56.33 km/h) | 33.99 mph (54.7 km/h) |
| 40 mph (64.37 km/h) | 38.84 mph (62.51 km/h) |
| 45 mph (72.42 km/h) | 43.7 mph (70.32 km/h) |
| 50 mph (80.47 km/h) | 48.55 mph (78.14 km/h) |
| 55 mph (88.51 km/h) | 53.41 mph (85.95 km/h) |
| 60 mph (96.56 km/h) | 58.26 mph (93.76 km/h) |
| 65 mph (104.61 km/h) | 63.12 mph (101.58 km/h) |
| 70 mph (112.65 km/h) | 67.97 mph (109.39 km/h) |
| 75 mph (120.7 km/h) | 72.83 mph (117.21 km/h) |
| 80 mph (128.75 km/h) | 77.68 mph (125.02 km/h) |
| 85 mph (136.79 km/h) | 82.54 mph (132.83 km/h) |
| 90 mph (144.84 km/h) | 87.39 mph (140.65 km/h) |
| 95 mph (152.89 km/h) | 92.25 mph (148.46 km/h) |
| 100 mph (160.93 km/h) | 97.1 mph (156.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3015 | 3227 | 3392 | 3498 | 3558 | 3776 | 4080 | 4741 |
Better Fuel Economy Factory Ratios Increased Power
