Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-16 | 305/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.9) | 29.21 (741.9) | 2.87 (73) 10.9% |
| Width inches (mm) | 6.89 (175) | 12.01 (305) | 5.12 (130) 74.3% |
| Circum. inches (mm) | 82.73 (2101.41) | 91.76 (2330.75) | 9.03 (229.34) 10.9% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 6.6 (167.75) | 1.44 (36.5) 27.8% |
| Revolutions per mile (km) | 765.84 (475.87) | 690.48 (429.05) | -75.36 (-46.82) -9.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.18 mph (35.7 km/h) |
| 25 mph (40.23 km/h) | 27.73 mph (44.62 km/h) |
| 30 mph (48.28 km/h) | 33.27 mph (53.55 km/h) |
| 35 mph (56.33 km/h) | 38.82 mph (62.47 km/h) |
| 40 mph (64.37 km/h) | 44.37 mph (71.4 km/h) |
| 45 mph (72.42 km/h) | 49.91 mph (80.32 km/h) |
| 50 mph (80.47 km/h) | 55.46 mph (89.25 km/h) |
| 55 mph (88.51 km/h) | 61 mph (98.17 km/h) |
| 60 mph (96.56 km/h) | 66.55 mph (107.1 km/h) |
| 65 mph (104.61 km/h) | 72.09 mph (116.02 km/h) |
| 70 mph (112.65 km/h) | 77.64 mph (124.95 km/h) |
| 75 mph (120.7 km/h) | 83.19 mph (133.87 km/h) |
| 80 mph (128.75 km/h) | 88.73 mph (142.8 km/h) |
| 85 mph (136.79 km/h) | 94.28 mph (151.72 km/h) |
| 90 mph (144.84 km/h) | 99.82 mph (160.65 km/h) |
| 95 mph (152.89 km/h) | 105.37 mph (169.57 km/h) |
| 100 mph (160.93 km/h) | 110.91 mph (178.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1757 | 2041 | 2198 | 2296 | 2400 | 2475 | 2557 | 2654 | 2789 | 2924 | 3073 | 3193 | 3410 | 3649 | 3836 | 3955 | 4023 | 4270 | 4613 | 5361 |
Better Fuel Economy Factory Ratios Increased Power
