Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 110/80-18 | 120/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.93 (633.2) | 24.61 (625.2) | -0.31 (-8) -1.3% |
| Width inches (mm) | 4.33 (110) | 4.72 (120) | 0.39 (10) 9.1% |
| Circum. inches (mm) | 78.32 (1989.26) | 77.33 (1964.12) | -0.99 (-25.13) -1.3% |
| Sidewall Height inches (mm) | 3.46 (88) | 3.31 (84) | -0.16 (-4) -4.5% |
| Revolutions per mile (km) | 809.02 (502.7) | 819.37 (509.13) | 10.35 (6.43) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.78 km/h) |
| 25 mph (40.23 km/h) | 24.68 mph (39.73 km/h) |
| 30 mph (48.28 km/h) | 29.62 mph (47.67 km/h) |
| 35 mph (56.33 km/h) | 34.56 mph (55.62 km/h) |
| 40 mph (64.37 km/h) | 39.49 mph (63.56 km/h) |
| 45 mph (72.42 km/h) | 44.43 mph (71.51 km/h) |
| 50 mph (80.47 km/h) | 49.37 mph (79.45 km/h) |
| 55 mph (88.51 km/h) | 54.31 mph (87.4 km/h) |
| 60 mph (96.56 km/h) | 59.24 mph (95.34 km/h) |
| 65 mph (104.61 km/h) | 64.18 mph (103.29 km/h) |
| 70 mph (112.65 km/h) | 69.12 mph (111.23 km/h) |
| 75 mph (120.7 km/h) | 74.05 mph (119.18 km/h) |
| 80 mph (128.75 km/h) | 78.99 mph (127.12 km/h) |
| 85 mph (136.79 km/h) | 83.93 mph (135.07 km/h) |
| 90 mph (144.84 km/h) | 88.86 mph (143.01 km/h) |
| 95 mph (152.89 km/h) | 93.8 mph (150.96 km/h) |
| 100 mph (160.93 km/h) | 98.74 mph (158.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2085 | 2422 | 2609 | 2724 | 2848 | 2937 | 3035 | 3150 | 3310 | 3469 | 3647 | 3789 | 4046 | 4330 | 4552 | 4694 | 4774 | 5066 | 5475 | 6362 |
Better Fuel Economy Factory Ratios Increased Power
