Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/55-15 | 355/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.71 (551.5) | 33.17 (842.5) | 11.46 (291) 52.8% |
| Width inches (mm) | 6.1 (155) | 13.98 (355) | 7.87 (200) 129% |
| Circum. inches (mm) | 68.21 (1732.59) | 104.2 (2646.79) | 35.99 (914.2) 52.8% |
| Sidewall Height inches (mm) | 3.36 (85.25) | 9.08 (230.75) | 5.73 (145.5) 170.7% |
| Revolutions per mile (km) | 928.87 (577.17) | 608.04 (377.82) | -320.83 (-199.35) -34.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.55 mph (49.17 km/h) |
| 25 mph (40.23 km/h) | 38.19 mph (61.46 km/h) |
| 30 mph (48.28 km/h) | 45.83 mph (73.76 km/h) |
| 35 mph (56.33 km/h) | 53.47 mph (86.05 km/h) |
| 40 mph (64.37 km/h) | 61.11 mph (98.34 km/h) |
| 45 mph (72.42 km/h) | 68.74 mph (110.63 km/h) |
| 50 mph (80.47 km/h) | 76.38 mph (122.93 km/h) |
| 55 mph (88.51 km/h) | 84.02 mph (135.22 km/h) |
| 60 mph (96.56 km/h) | 91.66 mph (147.51 km/h) |
| 65 mph (104.61 km/h) | 99.3 mph (159.8 km/h) |
| 70 mph (112.65 km/h) | 106.94 mph (172.1 km/h) |
| 75 mph (120.7 km/h) | 114.57 mph (184.39 km/h) |
| 80 mph (128.75 km/h) | 122.21 mph (196.68 km/h) |
| 85 mph (136.79 km/h) | 129.85 mph (208.97 km/h) |
| 90 mph (144.84 km/h) | 137.49 mph (221.27 km/h) |
| 95 mph (152.89 km/h) | 145.13 mph (233.56 km/h) |
| 100 mph (160.93 km/h) | 152.77 mph (245.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1547 | 1798 | 1936 | 2021 | 2114 | 2179 | 2252 | 2337 | 2456 | 2575 | 2706 | 2812 | 3002 | 3213 | 3378 | 3483 | 3542 | 3760 | 4063 | 4721 |
Better Fuel Economy Factory Ratios Increased Power
