Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/90-16 | 215/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.28 (667.4) | 28.16 (715.2) | 1.88 (47.8) 7.2% |
| Width inches (mm) | 5.71 (145) | 8.46 (215) | 2.76 (70) 48.3% |
| Circum. inches (mm) | 82.55 (2096.7) | 88.46 (2246.87) | 5.91 (150.17) 7.2% |
| Sidewall Height inches (mm) | 5.14 (130.5) | 5.08 (129) | -0.06 (-1.5) -1.1% |
| Revolutions per mile (km) | 767.56 (476.94) | 716.26 (445.06) | -51.3 (-31.88) -6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.43 mph (34.49 km/h) |
| 25 mph (40.23 km/h) | 26.79 mph (43.12 km/h) |
| 30 mph (48.28 km/h) | 32.15 mph (51.74 km/h) |
| 35 mph (56.33 km/h) | 37.51 mph (60.36 km/h) |
| 40 mph (64.37 km/h) | 42.86 mph (68.98 km/h) |
| 45 mph (72.42 km/h) | 48.22 mph (77.61 km/h) |
| 50 mph (80.47 km/h) | 53.58 mph (86.23 km/h) |
| 55 mph (88.51 km/h) | 58.94 mph (94.85 km/h) |
| 60 mph (96.56 km/h) | 64.3 mph (103.48 km/h) |
| 65 mph (104.61 km/h) | 69.66 mph (112.1 km/h) |
| 70 mph (112.65 km/h) | 75.01 mph (120.72 km/h) |
| 75 mph (120.7 km/h) | 80.37 mph (129.35 km/h) |
| 80 mph (128.75 km/h) | 85.73 mph (137.97 km/h) |
| 85 mph (136.79 km/h) | 91.09 mph (146.59 km/h) |
| 90 mph (144.84 km/h) | 96.45 mph (155.21 km/h) |
| 95 mph (152.89 km/h) | 101.8 mph (163.84 km/h) |
| 100 mph (160.93 km/h) | 107.16 mph (172.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1823 | 2117 | 2280 | 2381 | 2490 | 2567 | 2653 | 2754 | 2893 | 3033 | 3188 | 3312 | 3537 | 3785 | 3979 | 4103 | 4173 | 4429 | 4786 | 5561 |
Better Fuel Economy Factory Ratios Increased Power
