Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 110/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 19.8 (502.8) | -1.54 (-39.2) -7.2% |
| Width inches (mm) | 4.53 (115) | 4.33 (110) | -0.2 (-5) -4.3% |
| Circum. inches (mm) | 67.04 (1702.74) | 62.19 (1579.59) | -4.85 (-123.15) -7.2% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 3.9 (99) | 0.73 (18.5) 23% |
| Revolutions per mile (km) | 945.15 (587.29) | 1018.83 (633.07) | 73.69 (45.79) 7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.55 mph (29.86 km/h) |
| 25 mph (40.23 km/h) | 23.19 mph (37.32 km/h) |
| 30 mph (48.28 km/h) | 27.83 mph (44.79 km/h) |
| 35 mph (56.33 km/h) | 32.47 mph (52.25 km/h) |
| 40 mph (64.37 km/h) | 37.11 mph (59.72 km/h) |
| 45 mph (72.42 km/h) | 41.75 mph (67.18 km/h) |
| 50 mph (80.47 km/h) | 46.38 mph (74.65 km/h) |
| 55 mph (88.51 km/h) | 51.02 mph (82.11 km/h) |
| 60 mph (96.56 km/h) | 55.66 mph (89.58 km/h) |
| 65 mph (104.61 km/h) | 60.3 mph (97.04 km/h) |
| 70 mph (112.65 km/h) | 64.94 mph (104.51 km/h) |
| 75 mph (120.7 km/h) | 69.58 mph (111.97 km/h) |
| 80 mph (128.75 km/h) | 74.21 mph (119.44 km/h) |
| 85 mph (136.79 km/h) | 78.85 mph (126.9 km/h) |
| 90 mph (144.84 km/h) | 83.49 mph (134.37 km/h) |
| 95 mph (152.89 km/h) | 88.13 mph (141.83 km/h) |
| 100 mph (160.93 km/h) | 92.77 mph (149.3 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
