Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 115/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 22.34 (567.4) | 1 (25.4) 4.7% |
| Width inches (mm) | 4.53 (115) | 4.53 (115) | 0 (0) 0% |
| Circum. inches (mm) | 67.04 (1702.74) | 70.18 (1782.54) | 3.14 (79.8) 4.7% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 3.17 (80.5) | 0 (0) 0% |
| Revolutions per mile (km) | 945.15 (587.29) | 902.84 (561) | -42.31 (-26.29) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.7 km/h) |
| 25 mph (40.23 km/h) | 26.17 mph (42.12 km/h) |
| 30 mph (48.28 km/h) | 31.41 mph (50.54 km/h) |
| 35 mph (56.33 km/h) | 36.64 mph (58.97 km/h) |
| 40 mph (64.37 km/h) | 41.87 mph (67.39 km/h) |
| 45 mph (72.42 km/h) | 47.11 mph (75.81 km/h) |
| 50 mph (80.47 km/h) | 52.34 mph (84.24 km/h) |
| 55 mph (88.51 km/h) | 57.58 mph (92.66 km/h) |
| 60 mph (96.56 km/h) | 62.81 mph (101.09 km/h) |
| 65 mph (104.61 km/h) | 68.05 mph (109.51 km/h) |
| 70 mph (112.65 km/h) | 73.28 mph (117.93 km/h) |
| 75 mph (120.7 km/h) | 78.51 mph (126.36 km/h) |
| 80 mph (128.75 km/h) | 83.75 mph (134.78 km/h) |
| 85 mph (136.79 km/h) | 88.98 mph (143.21 km/h) |
| 90 mph (144.84 km/h) | 94.22 mph (151.63 km/h) |
| 95 mph (152.89 km/h) | 99.45 mph (160.05 km/h) |
| 100 mph (160.93 km/h) | 104.69 mph (168.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2298 | 2669 | 2874 | 3001 | 3138 | 3236 | 3344 | 3471 | 3647 | 3823 | 4018 | 4175 | 4458 | 4771 | 5016 | 5172 | 5260 | 5583 | 6032 | 7010 |
Better Fuel Economy Factory Ratios Increased Power
