Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/65-16 | 200/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.21 (640.4) | 25.87 (657.2) | 0.66 (16.8) 2.6% |
| Width inches (mm) | 7.09 (180) | 7.87 (200) | 0.79 (20) 11.1% |
| Circum. inches (mm) | 79.21 (2011.88) | 81.29 (2064.65) | 2.08 (52.78) 2.6% |
| Sidewall Height inches (mm) | 4.61 (117) | 3.94 (100) | -0.67 (-17) -14.5% |
| Revolutions per mile (km) | 799.92 (497.05) | 779.47 (484.34) | -20.45 (-12.71) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.52 mph (33.03 km/h) |
| 25 mph (40.23 km/h) | 25.66 mph (41.29 km/h) |
| 30 mph (48.28 km/h) | 30.79 mph (49.55 km/h) |
| 35 mph (56.33 km/h) | 35.92 mph (57.8 km/h) |
| 40 mph (64.37 km/h) | 41.05 mph (66.06 km/h) |
| 45 mph (72.42 km/h) | 46.18 mph (74.32 km/h) |
| 50 mph (80.47 km/h) | 51.31 mph (82.58 km/h) |
| 55 mph (88.51 km/h) | 56.44 mph (90.84 km/h) |
| 60 mph (96.56 km/h) | 61.57 mph (99.09 km/h) |
| 65 mph (104.61 km/h) | 66.71 mph (107.35 km/h) |
| 70 mph (112.65 km/h) | 71.84 mph (115.61 km/h) |
| 75 mph (120.7 km/h) | 76.97 mph (123.87 km/h) |
| 80 mph (128.75 km/h) | 82.1 mph (132.13 km/h) |
| 85 mph (136.79 km/h) | 87.23 mph (140.38 km/h) |
| 90 mph (144.84 km/h) | 92.36 mph (148.64 km/h) |
| 95 mph (152.89 km/h) | 97.49 mph (156.9 km/h) |
| 100 mph (160.93 km/h) | 102.62 mph (165.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | 2304 | 2482 | 2591 | 2710 | 2794 | 2887 | 2997 | 3148 | 3300 | 3469 | 3604 | 3849 | 4119 | 4330 | 4465 | 4541 | 4820 | 5208 | 6052 |
Better Fuel Economy Factory Ratios Increased Power
