Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-16 | 255/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.68 (626.9) | 24.03 (610.4) | -0.65 (-16.5) -2.6% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 77.54 (1969.46) | 75.5 (1917.63) | -2.04 (-51.84) -2.6% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.02 (102) | -0.32 (-8.25) -7.5% |
| Revolutions per mile (km) | 817.15 (507.75) | 839.24 (521.48) | 22.09 (13.73) 2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.47 mph (31.34 km/h) |
| 25 mph (40.23 km/h) | 24.34 mph (39.17 km/h) |
| 30 mph (48.28 km/h) | 29.21 mph (47.01 km/h) |
| 35 mph (56.33 km/h) | 34.08 mph (54.84 km/h) |
| 40 mph (64.37 km/h) | 38.95 mph (62.68 km/h) |
| 45 mph (72.42 km/h) | 43.82 mph (70.51 km/h) |
| 50 mph (80.47 km/h) | 48.68 mph (78.35 km/h) |
| 55 mph (88.51 km/h) | 53.55 mph (86.18 km/h) |
| 60 mph (96.56 km/h) | 58.42 mph (94.02 km/h) |
| 65 mph (104.61 km/h) | 63.29 mph (101.85 km/h) |
| 70 mph (112.65 km/h) | 68.16 mph (109.69 km/h) |
| 75 mph (120.7 km/h) | 73.03 mph (117.52 km/h) |
| 80 mph (128.75 km/h) | 77.89 mph (125.36 km/h) |
| 85 mph (136.79 km/h) | 82.76 mph (133.19 km/h) |
| 90 mph (144.84 km/h) | 87.63 mph (141.03 km/h) |
| 95 mph (152.89 km/h) | 92.5 mph (148.86 km/h) |
| 100 mph (160.93 km/h) | 97.37 mph (156.7 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
