Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 385/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 34.67 (880.7) | -1.36 (-34.48) -3.8% |
| Width inches (mm) | 12.52 (318) | 15.16 (385) | 2.64 (67) 21.1% |
| Circum. inches (mm) | 113.19 (2875.12) | 108.93 (2766.8) | -4.26 (-108.32) -3.8% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 8.34 (211.75) | -1.43 (-36.29) -14.6% |
| Revolutions per mile (km) | 559.75 (347.81) | 581.66 (361.43) | 21.91 (13.62) 3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.06 mph (38.72 km/h) |
| 30 mph (48.28 km/h) | 28.87 mph (46.46 km/h) |
| 35 mph (56.33 km/h) | 33.68 mph (54.2 km/h) |
| 40 mph (64.37 km/h) | 38.49 mph (61.95 km/h) |
| 45 mph (72.42 km/h) | 43.3 mph (69.69 km/h) |
| 50 mph (80.47 km/h) | 48.12 mph (77.44 km/h) |
| 55 mph (88.51 km/h) | 52.93 mph (85.18 km/h) |
| 60 mph (96.56 km/h) | 57.74 mph (92.92 km/h) |
| 65 mph (104.61 km/h) | 62.55 mph (100.67 km/h) |
| 70 mph (112.65 km/h) | 67.36 mph (108.41 km/h) |
| 75 mph (120.7 km/h) | 72.17 mph (116.15 km/h) |
| 80 mph (128.75 km/h) | 76.99 mph (123.9 km/h) |
| 85 mph (136.79 km/h) | 81.8 mph (131.64 km/h) |
| 90 mph (144.84 km/h) | 86.61 mph (139.38 km/h) |
| 95 mph (152.89 km/h) | 91.42 mph (147.13 km/h) |
| 100 mph (160.93 km/h) | 96.23 mph (154.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1480 | 1720 | 1852 | 1934 | 2022 | 2085 | 2154 | 2236 | 2349 | 2463 | 2589 | 2690 | 2872 | 3074 | 3231 | 3332 | 3389 | 3597 | 3886 | 4516 |
Better Fuel Economy Factory Ratios Increased Power
