Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 360/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 30.59 (777) | 8.94 (227.2) 41.3% |
| Width inches (mm) | 6.89 (175) | 14.17 (360) | 7.28 (185) 105.7% |
| Circum. inches (mm) | 68 (1727.25) | 96.1 (2441.02) | 28.1 (713.77) 41.3% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 7.8 (198) | 2.97 (75.5) 61.6% |
| Revolutions per mile (km) | 931.74 (578.95) | 659.29 (409.66) | -272.45 (-169.29) -29.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.26 mph (45.49 km/h) |
| 25 mph (40.23 km/h) | 35.33 mph (56.86 km/h) |
| 30 mph (48.28 km/h) | 42.4 mph (68.23 km/h) |
| 35 mph (56.33 km/h) | 49.46 mph (79.6 km/h) |
| 40 mph (64.37 km/h) | 56.53 mph (90.98 km/h) |
| 45 mph (72.42 km/h) | 63.6 mph (102.35 km/h) |
| 50 mph (80.47 km/h) | 70.66 mph (113.72 km/h) |
| 55 mph (88.51 km/h) | 77.73 mph (125.09 km/h) |
| 60 mph (96.56 km/h) | 84.79 mph (136.46 km/h) |
| 65 mph (104.61 km/h) | 91.86 mph (147.84 km/h) |
| 70 mph (112.65 km/h) | 98.93 mph (159.21 km/h) |
| 75 mph (120.7 km/h) | 105.99 mph (170.58 km/h) |
| 80 mph (128.75 km/h) | 113.06 mph (181.95 km/h) |
| 85 mph (136.79 km/h) | 120.13 mph (193.32 km/h) |
| 90 mph (144.84 km/h) | 127.19 mph (204.7 km/h) |
| 95 mph (152.89 km/h) | 134.26 mph (216.07 km/h) |
| 100 mph (160.93 km/h) | 141.32 mph (227.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1678 | 1949 | 2099 | 2192 | 2292 | 2363 | 2442 | 2535 | 2663 | 2792 | 2934 | 3049 | 3256 | 3484 | 3663 | 3777 | 3841 | 4077 | 4405 | 5119 |
Better Fuel Economy Factory Ratios Increased Power
