Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 375/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 40.15 (1019.7) | 4.11 (104.52) 11.4% |
| Width inches (mm) | 12.52 (318) | 14.76 (375) | 2.24 (57) 17.9% |
| Circum. inches (mm) | 113.19 (2875.12) | 126.12 (3203.48) | 12.93 (328.36) 11.4% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 11.07 (281.25) | 1.31 (33.21) 13.4% |
| Revolutions per mile (km) | 559.75 (347.81) | 502.37 (312.16) | -57.37 (-35.65) -10.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.28 mph (35.86 km/h) |
| 25 mph (40.23 km/h) | 27.86 mph (44.83 km/h) |
| 30 mph (48.28 km/h) | 33.43 mph (53.79 km/h) |
| 35 mph (56.33 km/h) | 39 mph (62.76 km/h) |
| 40 mph (64.37 km/h) | 44.57 mph (71.73 km/h) |
| 45 mph (72.42 km/h) | 50.14 mph (80.69 km/h) |
| 50 mph (80.47 km/h) | 55.71 mph (89.66 km/h) |
| 55 mph (88.51 km/h) | 61.28 mph (98.62 km/h) |
| 60 mph (96.56 km/h) | 66.85 mph (107.59 km/h) |
| 65 mph (104.61 km/h) | 72.42 mph (116.55 km/h) |
| 70 mph (112.65 km/h) | 77.99 mph (125.52 km/h) |
| 75 mph (120.7 km/h) | 83.57 mph (134.49 km/h) |
| 80 mph (128.75 km/h) | 89.14 mph (143.45 km/h) |
| 85 mph (136.79 km/h) | 94.71 mph (152.42 km/h) |
| 90 mph (144.84 km/h) | 100.28 mph (161.38 km/h) |
| 95 mph (152.89 km/h) | 105.85 mph (170.35 km/h) |
| 100 mph (160.93 km/h) | 111.42 mph (179.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1278 | 1485 | 1599 | 1670 | 1746 | 1801 | 1861 | 1931 | 2029 | 2127 | 2236 | 2323 | 2481 | 2655 | 2791 | 2878 | 2927 | 3106 | 3357 | 3901 |
Better Fuel Economy Factory Ratios Increased Power
