Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 210/40-18 | 220/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 24.93 (633.2) | 0.31 (8) 1.3% |
| Width inches (mm) | 8.27 (210) | 8.66 (220) | 0.39 (10) 4.8% |
| Circum. inches (mm) | 77.33 (1964.12) | 78.32 (1989.26) | 0.99 (25.13) 1.3% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.46 (88) | 0.16 (4) 4.8% |
| Revolutions per mile (km) | 819.37 (509.13) | 809.02 (502.7) | -10.35 (-6.43) -1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.26 mph (32.6 km/h) |
| 25 mph (40.23 km/h) | 25.32 mph (40.75 km/h) |
| 30 mph (48.28 km/h) | 30.38 mph (48.9 km/h) |
| 35 mph (56.33 km/h) | 35.45 mph (57.05 km/h) |
| 40 mph (64.37 km/h) | 40.51 mph (65.2 km/h) |
| 45 mph (72.42 km/h) | 45.58 mph (73.35 km/h) |
| 50 mph (80.47 km/h) | 50.64 mph (81.5 km/h) |
| 55 mph (88.51 km/h) | 55.7 mph (89.65 km/h) |
| 60 mph (96.56 km/h) | 60.77 mph (97.8 km/h) |
| 65 mph (104.61 km/h) | 65.83 mph (105.95 km/h) |
| 70 mph (112.65 km/h) | 70.9 mph (114.1 km/h) |
| 75 mph (120.7 km/h) | 75.96 mph (122.25 km/h) |
| 80 mph (128.75 km/h) | 81.02 mph (130.4 km/h) |
| 85 mph (136.79 km/h) | 86.09 mph (138.54 km/h) |
| 90 mph (144.84 km/h) | 91.15 mph (146.69 km/h) |
| 95 mph (152.89 km/h) | 96.22 mph (154.84 km/h) |
| 100 mph (160.93 km/h) | 101.28 mph (162.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2812 | 2900 | 2996 | 3110 | 3268 | 3425 | 3601 | 3741 | 3995 | 4275 | 4494 | 4634 | 4713 | 5002 | 5405 | 6282 |
Better Fuel Economy Factory Ratios Increased Power
