Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-16 | 255/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.09 (586.4) | 24.03 (610.4) | 0.94 (24) 4.1% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 72.53 (1842.23) | 75.5 (1917.63) | 2.97 (75.4) 4.1% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.02 (102) | 0.47 (12) 13.3% |
| Revolutions per mile (km) | 873.58 (542.82) | 839.24 (521.48) | -34.35 (-21.34) -3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.5 km/h) |
| 25 mph (40.23 km/h) | 26.02 mph (41.88 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.26 km/h) |
| 35 mph (56.33 km/h) | 36.43 mph (58.63 km/h) |
| 40 mph (64.37 km/h) | 41.64 mph (67.01 km/h) |
| 45 mph (72.42 km/h) | 46.84 mph (75.38 km/h) |
| 50 mph (80.47 km/h) | 52.05 mph (83.76 km/h) |
| 55 mph (88.51 km/h) | 57.25 mph (92.14 km/h) |
| 60 mph (96.56 km/h) | 62.46 mph (100.51 km/h) |
| 65 mph (104.61 km/h) | 67.66 mph (108.89 km/h) |
| 70 mph (112.65 km/h) | 72.86 mph (117.26 km/h) |
| 75 mph (120.7 km/h) | 78.07 mph (125.64 km/h) |
| 80 mph (128.75 km/h) | 83.27 mph (134.02 km/h) |
| 85 mph (136.79 km/h) | 88.48 mph (142.39 km/h) |
| 90 mph (144.84 km/h) | 93.68 mph (150.77 km/h) |
| 95 mph (152.89 km/h) | 98.89 mph (159.15 km/h) |
| 100 mph (160.93 km/h) | 104.09 mph (167.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2136 | 2481 | 2672 | 2790 | 2917 | 3008 | 3108 | 3226 | 3390 | 3553 | 3735 | 3881 | 4144 | 4435 | 4662 | 4808 | 4889 | 5189 | 5607 | 6516 |
Better Fuel Economy Factory Ratios Increased Power
