Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-19 | 215/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.54 (699.6) | 26.46 (672.2) | -1.08 (-27.4) -3.9% |
| Width inches (mm) | 6.1 (155) | 8.46 (215) | 2.36 (60) 38.7% |
| Circum. inches (mm) | 86.53 (2197.86) | 83.14 (2111.78) | -3.39 (-86.08) -3.9% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.23 (107.5) | -0.04 (-1) -0.9% |
| Revolutions per mile (km) | 732.23 (454.99) | 762.08 (473.53) | 29.85 (18.55) 4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.22 mph (30.93 km/h) |
| 25 mph (40.23 km/h) | 24.02 mph (38.66 km/h) |
| 30 mph (48.28 km/h) | 28.83 mph (46.39 km/h) |
| 35 mph (56.33 km/h) | 33.63 mph (54.12 km/h) |
| 40 mph (64.37 km/h) | 38.43 mph (61.85 km/h) |
| 45 mph (72.42 km/h) | 43.24 mph (69.58 km/h) |
| 50 mph (80.47 km/h) | 48.04 mph (77.32 km/h) |
| 55 mph (88.51 km/h) | 52.85 mph (85.05 km/h) |
| 60 mph (96.56 km/h) | 57.65 mph (92.78 km/h) |
| 65 mph (104.61 km/h) | 62.45 mph (100.51 km/h) |
| 70 mph (112.65 km/h) | 67.26 mph (108.24 km/h) |
| 75 mph (120.7 km/h) | 72.06 mph (115.97 km/h) |
| 80 mph (128.75 km/h) | 76.87 mph (123.71 km/h) |
| 85 mph (136.79 km/h) | 81.67 mph (131.44 km/h) |
| 90 mph (144.84 km/h) | 86.48 mph (139.17 km/h) |
| 95 mph (152.89 km/h) | 91.28 mph (146.9 km/h) |
| 100 mph (160.93 km/h) | 96.08 mph (154.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1939 | 2253 | 2426 | 2534 | 2649 | 2732 | 2822 | 2930 | 3078 | 3227 | 3392 | 3524 | 3763 | 4027 | 4234 | 4366 | 4440 | 4712 | 5092 | 5917 |
Better Fuel Economy Factory Ratios Increased Power
