Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-16 | 180/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.5 (622.4) | 25.92 (658.4) | 1.42 (36) 5.8% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 76.98 (1955.33) | 81.43 (2068.42) | 4.45 (113.1) 5.8% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.96 (126) | 0.71 (18) 16.7% |
| Revolutions per mile (km) | 823.06 (511.42) | 778.05 (483.46) | -45 (-27.96) -5.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.16 mph (34.05 km/h) |
| 25 mph (40.23 km/h) | 26.45 mph (42.56 km/h) |
| 30 mph (48.28 km/h) | 31.74 mph (51.07 km/h) |
| 35 mph (56.33 km/h) | 37.02 mph (59.59 km/h) |
| 40 mph (64.37 km/h) | 42.31 mph (68.1 km/h) |
| 45 mph (72.42 km/h) | 47.6 mph (76.61 km/h) |
| 50 mph (80.47 km/h) | 52.89 mph (85.12 km/h) |
| 55 mph (88.51 km/h) | 58.18 mph (93.63 km/h) |
| 60 mph (96.56 km/h) | 63.47 mph (102.15 km/h) |
| 65 mph (104.61 km/h) | 68.76 mph (110.66 km/h) |
| 70 mph (112.65 km/h) | 74.05 mph (119.17 km/h) |
| 75 mph (120.7 km/h) | 79.34 mph (127.68 km/h) |
| 80 mph (128.75 km/h) | 84.63 mph (136.19 km/h) |
| 85 mph (136.79 km/h) | 89.92 mph (144.71 km/h) |
| 90 mph (144.84 km/h) | 95.21 mph (153.22 km/h) |
| 95 mph (152.89 km/h) | 100.49 mph (161.73 km/h) |
| 100 mph (160.93 km/h) | 105.78 mph (170.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | 2300 | 2477 | 2587 | 2705 | 2789 | 2882 | 2991 | 3143 | 3294 | 3463 | 3598 | 3842 | 4112 | 4322 | 4457 | 4533 | 4811 | 5199 | 6041 |
Better Fuel Economy Factory Ratios Increased Power
