Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 180/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 25.38 (644.6) | 0.04 (1) 0.2% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 79.6 (2021.93) | 79.73 (2025.07) | 0.12 (3.14) 0.2% |
| Sidewall Height inches (mm) | 5.67 (144) | 3.19 (81) | -2.48 (-63) -43.8% |
| Revolutions per mile (km) | 795.94 (494.58) | 794.71 (493.81) | -1.23 (-0.77) -0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.3 km/h) |
| 30 mph (48.28 km/h) | 30.05 mph (48.36 km/h) |
| 35 mph (56.33 km/h) | 35.05 mph (56.41 km/h) |
| 40 mph (64.37 km/h) | 40.06 mph (64.47 km/h) |
| 45 mph (72.42 km/h) | 45.07 mph (72.53 km/h) |
| 50 mph (80.47 km/h) | 50.08 mph (80.59 km/h) |
| 55 mph (88.51 km/h) | 55.09 mph (88.65 km/h) |
| 60 mph (96.56 km/h) | 60.09 mph (96.71 km/h) |
| 65 mph (104.61 km/h) | 65.1 mph (104.77 km/h) |
| 70 mph (112.65 km/h) | 70.11 mph (112.83 km/h) |
| 75 mph (120.7 km/h) | 75.12 mph (120.89 km/h) |
| 80 mph (128.75 km/h) | 80.12 mph (128.95 km/h) |
| 85 mph (136.79 km/h) | 85.13 mph (137.01 km/h) |
| 90 mph (144.84 km/h) | 90.14 mph (145.07 km/h) |
| 95 mph (152.89 km/h) | 95.15 mph (153.13 km/h) |
| 100 mph (160.93 km/h) | 100.16 mph (161.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 2349 | 2530 | 2642 | 2762 | 2849 | 2943 | 3055 | 3210 | 3365 | 3537 | 3675 | 3924 | 4200 | 4415 | 4553 | 4630 | 4914 | 5310 | 6170 |
Better Fuel Economy Factory Ratios Increased Power
