Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-16 | 33/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.6 (878.9) | 33.03 (838.88) | -1.58 (-40.02) -4.6% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 108.71 (2761.15) | 103.76 (2635.42) | -4.95 (-125.73) -4.6% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 8.51 (216.24) | -0.79 (-20.01) -8.5% |
| Revolutions per mile (km) | 582.85 (362.17) | 610.66 (379.45) | 27.81 (17.28) 4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.09 mph (30.72 km/h) |
| 25 mph (40.23 km/h) | 23.86 mph (38.4 km/h) |
| 30 mph (48.28 km/h) | 28.63 mph (46.08 km/h) |
| 35 mph (56.33 km/h) | 33.41 mph (53.76 km/h) |
| 40 mph (64.37 km/h) | 38.18 mph (61.44 km/h) |
| 45 mph (72.42 km/h) | 42.95 mph (69.12 km/h) |
| 50 mph (80.47 km/h) | 47.72 mph (76.8 km/h) |
| 55 mph (88.51 km/h) | 52.5 mph (84.48 km/h) |
| 60 mph (96.56 km/h) | 57.27 mph (92.16 km/h) |
| 65 mph (104.61 km/h) | 62.04 mph (99.84 km/h) |
| 70 mph (112.65 km/h) | 66.81 mph (107.52 km/h) |
| 75 mph (120.7 km/h) | 71.58 mph (115.21 km/h) |
| 80 mph (128.75 km/h) | 76.36 mph (122.89 km/h) |
| 85 mph (136.79 km/h) | 81.13 mph (130.57 km/h) |
| 90 mph (144.84 km/h) | 85.9 mph (138.25 km/h) |
| 95 mph (152.89 km/h) | 90.67 mph (145.93 km/h) |
| 100 mph (160.93 km/h) | 95.45 mph (153.61 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
