Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 27/12.5-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 27.02 (686.24) | -0.14 (-3.66) -0.5% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 85.33 (2167.38) | 84.88 (2155.89) | -0.45 (-11.5) -0.5% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 5.51 (139.92) | -0.07 (-1.83) -1.3% |
| Revolutions per mile (km) | 742.53 (461.38) | 746.49 (463.85) | 3.96 (2.46) 0.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.89 mph (32.02 km/h) |
| 25 mph (40.23 km/h) | 24.87 mph (40.02 km/h) |
| 30 mph (48.28 km/h) | 29.84 mph (48.02 km/h) |
| 35 mph (56.33 km/h) | 34.81 mph (56.03 km/h) |
| 40 mph (64.37 km/h) | 39.79 mph (64.03 km/h) |
| 45 mph (72.42 km/h) | 44.76 mph (72.04 km/h) |
| 50 mph (80.47 km/h) | 49.73 mph (80.04 km/h) |
| 55 mph (88.51 km/h) | 54.71 mph (88.04 km/h) |
| 60 mph (96.56 km/h) | 59.68 mph (96.05 km/h) |
| 65 mph (104.61 km/h) | 64.66 mph (104.05 km/h) |
| 70 mph (112.65 km/h) | 69.63 mph (112.06 km/h) |
| 75 mph (120.7 km/h) | 74.6 mph (120.06 km/h) |
| 80 mph (128.75 km/h) | 79.58 mph (128.06 km/h) |
| 85 mph (136.79 km/h) | 84.55 mph (136.07 km/h) |
| 90 mph (144.84 km/h) | 89.52 mph (144.07 km/h) |
| 95 mph (152.89 km/h) | 94.5 mph (152.08 km/h) |
| 100 mph (160.93 km/h) | 99.47 mph (160.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1900 | 2207 | 2377 | 2482 | 2595 | 2676 | 2765 | 2870 | 3015 | 3161 | 3322 | 3452 | 3686 | 3945 | 4147 | 4276 | 4349 | 4616 | 4988 | 5796 |
Better Fuel Economy Factory Ratios Increased Power
