Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 115/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 20.43 (519) | -0.91 (-23) -4.2% |
| Width inches (mm) | 4.53 (115) | 4.53 (115) | 0 (0) 0% |
| Circum. inches (mm) | 67.04 (1702.74) | 64.19 (1630.49) | -2.84 (-72.26) -4.2% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 2.72 (69) | -0.45 (-11.5) -14.3% |
| Revolutions per mile (km) | 945.15 (587.29) | 987.03 (613.31) | 41.89 (26.03) 4.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.15 mph (30.82 km/h) |
| 25 mph (40.23 km/h) | 23.94 mph (38.53 km/h) |
| 30 mph (48.28 km/h) | 28.73 mph (46.23 km/h) |
| 35 mph (56.33 km/h) | 33.51 mph (53.94 km/h) |
| 40 mph (64.37 km/h) | 38.3 mph (61.64 km/h) |
| 45 mph (72.42 km/h) | 43.09 mph (69.35 km/h) |
| 50 mph (80.47 km/h) | 47.88 mph (77.05 km/h) |
| 55 mph (88.51 km/h) | 52.67 mph (84.76 km/h) |
| 60 mph (96.56 km/h) | 57.45 mph (92.46 km/h) |
| 65 mph (104.61 km/h) | 62.24 mph (100.17 km/h) |
| 70 mph (112.65 km/h) | 67.03 mph (107.87 km/h) |
| 75 mph (120.7 km/h) | 71.82 mph (115.58 km/h) |
| 80 mph (128.75 km/h) | 76.61 mph (123.28 km/h) |
| 85 mph (136.79 km/h) | 81.39 mph (130.99 km/h) |
| 90 mph (144.84 km/h) | 86.18 mph (138.69 km/h) |
| 95 mph (152.89 km/h) | 90.97 mph (146.4 km/h) |
| 100 mph (160.93 km/h) | 95.76 mph (154.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
