Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/35-15 | 445/20-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.58 (573.5) | 22.01 (559) | -0.57 (-14.5) -2.5% |
| Width inches (mm) | 10.83 (275) | 17.52 (445) | 6.69 (170) 61.8% |
| Circum. inches (mm) | 70.93 (1801.7) | 69.14 (1756.15) | -1.79 (-45.55) -2.5% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.5 (89) | -0.29 (-7.25) -7.5% |
| Revolutions per mile (km) | 893.23 (555.03) | 916.4 (569.43) | 23.17 (14.4) 2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.49 mph (31.37 km/h) |
| 25 mph (40.23 km/h) | 24.37 mph (39.22 km/h) |
| 30 mph (48.28 km/h) | 29.24 mph (47.06 km/h) |
| 35 mph (56.33 km/h) | 34.12 mph (54.9 km/h) |
| 40 mph (64.37 km/h) | 38.99 mph (62.75 km/h) |
| 45 mph (72.42 km/h) | 43.86 mph (70.59 km/h) |
| 50 mph (80.47 km/h) | 48.74 mph (78.43 km/h) |
| 55 mph (88.51 km/h) | 53.61 mph (86.28 km/h) |
| 60 mph (96.56 km/h) | 58.48 mph (94.12 km/h) |
| 65 mph (104.61 km/h) | 63.36 mph (101.96 km/h) |
| 70 mph (112.65 km/h) | 68.23 mph (109.81 km/h) |
| 75 mph (120.7 km/h) | 73.1 mph (117.65 km/h) |
| 80 mph (128.75 km/h) | 77.98 mph (125.49 km/h) |
| 85 mph (136.79 km/h) | 82.85 mph (133.34 km/h) |
| 90 mph (144.84 km/h) | 87.72 mph (141.18 km/h) |
| 95 mph (152.89 km/h) | 92.6 mph (149.02 km/h) |
| 100 mph (160.93 km/h) | 97.47 mph (156.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2332 | 2709 | 2918 | 3047 | 3186 | 3285 | 3394 | 3523 | 3702 | 3880 | 4079 | 4237 | 4525 | 4843 | 5091 | 5250 | 5339 | 5666 | 6123 | 7115 |
Better Fuel Economy Factory Ratios Increased Power
