Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-15 | 245/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 32.36 (822) | 7.44 (189) 29.9% |
| Width inches (mm) | 5.51 (140) | 9.65 (245) | 4.13 (105) 75% |
| Circum. inches (mm) | 78.29 (1988.63) | 101.67 (2582.39) | 23.38 (593.76) 29.9% |
| Sidewall Height inches (mm) | 4.96 (126) | 8.68 (220.5) | 3.72 (94.5) 75% |
| Revolutions per mile (km) | 809.27 (502.86) | 623.2 (387.24) | -186.07 (-115.62) -23% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.97 mph (41.8 km/h) |
| 25 mph (40.23 km/h) | 32.46 mph (52.25 km/h) |
| 30 mph (48.28 km/h) | 38.96 mph (62.7 km/h) |
| 35 mph (56.33 km/h) | 45.45 mph (73.15 km/h) |
| 40 mph (64.37 km/h) | 51.94 mph (83.59 km/h) |
| 45 mph (72.42 km/h) | 58.44 mph (94.04 km/h) |
| 50 mph (80.47 km/h) | 64.93 mph (104.49 km/h) |
| 55 mph (88.51 km/h) | 71.42 mph (114.94 km/h) |
| 60 mph (96.56 km/h) | 77.91 mph (125.39 km/h) |
| 65 mph (104.61 km/h) | 84.41 mph (135.84 km/h) |
| 70 mph (112.65 km/h) | 90.9 mph (146.29 km/h) |
| 75 mph (120.7 km/h) | 97.39 mph (156.74 km/h) |
| 80 mph (128.75 km/h) | 103.89 mph (167.19 km/h) |
| 85 mph (136.79 km/h) | 110.38 mph (177.64 km/h) |
| 90 mph (144.84 km/h) | 116.87 mph (188.09 km/h) |
| 95 mph (152.89 km/h) | 123.36 mph (198.54 km/h) |
| 100 mph (160.93 km/h) | 129.86 mph (208.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1586 | 1842 | 1984 | 2072 | 2166 | 2234 | 2308 | 2396 | 2517 | 2639 | 2774 | 2882 | 3077 | 3293 | 3462 | 3570 | 3631 | 3853 | 4164 | 4839 |
Better Fuel Economy Factory Ratios Increased Power
