Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 385/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 40.74 (1034.7) | 4.71 (119.52) 13.1% |
| Width inches (mm) | 12.52 (318) | 15.16 (385) | 2.64 (67) 21.1% |
| Circum. inches (mm) | 113.19 (2875.12) | 127.98 (3250.61) | 14.78 (375.48) 13.1% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 11.37 (288.75) | 1.6 (40.71) 16.4% |
| Revolutions per mile (km) | 559.75 (347.81) | 495.09 (307.63) | -64.66 (-40.18) -11.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.61 mph (36.39 km/h) |
| 25 mph (40.23 km/h) | 28.26 mph (45.49 km/h) |
| 30 mph (48.28 km/h) | 33.92 mph (54.59 km/h) |
| 35 mph (56.33 km/h) | 39.57 mph (63.68 km/h) |
| 40 mph (64.37 km/h) | 45.22 mph (72.78 km/h) |
| 45 mph (72.42 km/h) | 50.88 mph (81.88 km/h) |
| 50 mph (80.47 km/h) | 56.53 mph (90.98 km/h) |
| 55 mph (88.51 km/h) | 62.18 mph (100.07 km/h) |
| 60 mph (96.56 km/h) | 67.84 mph (109.17 km/h) |
| 65 mph (104.61 km/h) | 73.49 mph (118.27 km/h) |
| 70 mph (112.65 km/h) | 79.14 mph (127.37 km/h) |
| 75 mph (120.7 km/h) | 84.79 mph (136.46 km/h) |
| 80 mph (128.75 km/h) | 90.45 mph (145.56 km/h) |
| 85 mph (136.79 km/h) | 96.1 mph (154.66 km/h) |
| 90 mph (144.84 km/h) | 101.75 mph (163.76 km/h) |
| 95 mph (152.89 km/h) | 107.41 mph (172.85 km/h) |
| 100 mph (160.93 km/h) | 113.06 mph (181.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1260 | 1464 | 1576 | 1646 | 1721 | 1775 | 1834 | 1903 | 2000 | 2096 | 2204 | 2289 | 2445 | 2616 | 2750 | 2836 | 2884 | 3061 | 3308 | 3844 |
Better Fuel Economy Factory Ratios Increased Power
