Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 315/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 37.08 (941.9) | 9.92 (252) 36.5% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 85.33 (2167.38) | 116.5 (2959.07) | 31.17 (791.68) 36.5% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 10.54 (267.75) | 4.96 (126) 88.9% |
| Revolutions per mile (km) | 742.53 (461.38) | 543.87 (337.94) | -198.66 (-123.44) -26.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.31 mph (43.94 km/h) |
| 25 mph (40.23 km/h) | 34.13 mph (54.93 km/h) |
| 30 mph (48.28 km/h) | 40.96 mph (65.92 km/h) |
| 35 mph (56.33 km/h) | 47.78 mph (76.9 km/h) |
| 40 mph (64.37 km/h) | 54.61 mph (87.89 km/h) |
| 45 mph (72.42 km/h) | 61.44 mph (98.87 km/h) |
| 50 mph (80.47 km/h) | 68.26 mph (109.86 km/h) |
| 55 mph (88.51 km/h) | 75.09 mph (120.85 km/h) |
| 60 mph (96.56 km/h) | 81.92 mph (131.83 km/h) |
| 65 mph (104.61 km/h) | 88.74 mph (142.82 km/h) |
| 70 mph (112.65 km/h) | 95.57 mph (153.8 km/h) |
| 75 mph (120.7 km/h) | 102.4 mph (164.79 km/h) |
| 80 mph (128.75 km/h) | 109.22 mph (175.78 km/h) |
| 85 mph (136.79 km/h) | 116.05 mph (186.76 km/h) |
| 90 mph (144.84 km/h) | 122.87 mph (197.75 km/h) |
| 95 mph (152.89 km/h) | 129.7 mph (208.73 km/h) |
| 100 mph (160.93 km/h) | 136.53 mph (219.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1384 | 1608 | 1732 | 1808 | 1891 | 1949 | 2014 | 2091 | 2197 | 2303 | 2421 | 2515 | 2686 | 2874 | 3021 | 3116 | 3169 | 3363 | 3634 | 4223 |
Better Fuel Economy Factory Ratios Increased Power
