Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16 | 255/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.47 (773.9) | 34.06 (865.2) | 3.59 (91.3) 11.8% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 95.72 (2431.28) | 107.01 (2718.11) | 11.29 (286.83) 11.8% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.03 (204) | 0.8 (20.25) 11% |
| Revolutions per mile (km) | 661.93 (411.31) | 592.08 (367.9) | -69.85 (-43.4) -10.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.36 mph (35.98 km/h) |
| 25 mph (40.23 km/h) | 27.95 mph (44.98 km/h) |
| 30 mph (48.28 km/h) | 33.54 mph (53.98 km/h) |
| 35 mph (56.33 km/h) | 39.13 mph (62.97 km/h) |
| 40 mph (64.37 km/h) | 44.72 mph (71.97 km/h) |
| 45 mph (72.42 km/h) | 50.31 mph (80.96 km/h) |
| 50 mph (80.47 km/h) | 55.9 mph (89.96 km/h) |
| 55 mph (88.51 km/h) | 61.49 mph (98.96 km/h) |
| 60 mph (96.56 km/h) | 67.08 mph (107.95 km/h) |
| 65 mph (104.61 km/h) | 72.67 mph (116.95 km/h) |
| 70 mph (112.65 km/h) | 78.26 mph (125.94 km/h) |
| 75 mph (120.7 km/h) | 83.85 mph (134.94 km/h) |
| 80 mph (128.75 km/h) | 89.44 mph (143.94 km/h) |
| 85 mph (136.79 km/h) | 95.03 mph (152.93 km/h) |
| 90 mph (144.84 km/h) | 100.62 mph (161.93 km/h) |
| 95 mph (152.89 km/h) | 106.21 mph (170.92 km/h) |
| 100 mph (160.93 km/h) | 111.8 mph (179.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1507 | 1750 | 1885 | 1968 | 2058 | 2122 | 2193 | 2276 | 2392 | 2507 | 2635 | 2738 | 2924 | 3129 | 3289 | 3392 | 3449 | 3661 | 3956 | 4597 |
Better Fuel Economy Factory Ratios Increased Power
