Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-16 | 255/25-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.09 (586.4) | 23.02 (584.7) | -0.07 (-1.7) -0.3% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 72.53 (1842.23) | 72.32 (1836.89) | -0.21 (-5.34) -0.3% |
| Sidewall Height inches (mm) | 3.54 (90) | 2.51 (63.75) | -1.03 (-26.25) -29.2% |
| Revolutions per mile (km) | 873.58 (542.82) | 876.12 (544.4) | 2.54 (1.58) 0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.09 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.12 km/h) |
| 30 mph (48.28 km/h) | 29.91 mph (48.14 km/h) |
| 35 mph (56.33 km/h) | 34.9 mph (56.16 km/h) |
| 40 mph (64.37 km/h) | 39.88 mph (64.19 km/h) |
| 45 mph (72.42 km/h) | 44.87 mph (72.21 km/h) |
| 50 mph (80.47 km/h) | 49.86 mph (80.23 km/h) |
| 55 mph (88.51 km/h) | 54.84 mph (88.26 km/h) |
| 60 mph (96.56 km/h) | 59.83 mph (96.28 km/h) |
| 65 mph (104.61 km/h) | 64.81 mph (104.3 km/h) |
| 70 mph (112.65 km/h) | 69.8 mph (112.33 km/h) |
| 75 mph (120.7 km/h) | 74.78 mph (120.35 km/h) |
| 80 mph (128.75 km/h) | 79.77 mph (128.37 km/h) |
| 85 mph (136.79 km/h) | 84.75 mph (136.4 km/h) |
| 90 mph (144.84 km/h) | 89.74 mph (144.42 km/h) |
| 95 mph (152.89 km/h) | 94.72 mph (152.44 km/h) |
| 100 mph (160.93 km/h) | 99.71 mph (160.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2230 | 2590 | 2789 | 2913 | 3045 | 3140 | 3245 | 3368 | 3539 | 3710 | 3899 | 4051 | 4326 | 4630 | 4867 | 5019 | 5104 | 5417 | 5854 | 6803 |
Better Fuel Economy Factory Ratios Increased Power
