Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-16 | 225/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.9) | 33.29 (845.5) | 6.95 (176.6) 26.4% |
| Width inches (mm) | 6.89 (175) | 8.86 (225) | 1.97 (50) 28.6% |
| Circum. inches (mm) | 82.73 (2101.41) | 104.58 (2656.22) | 21.84 (554.81) 26.4% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 6.64 (168.75) | 1.48 (37.5) 28.6% |
| Revolutions per mile (km) | 765.84 (475.87) | 605.88 (376.47) | -159.96 (-99.4) -20.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.28 mph (40.68 km/h) |
| 25 mph (40.23 km/h) | 31.6 mph (50.86 km/h) |
| 30 mph (48.28 km/h) | 37.92 mph (61.03 km/h) |
| 35 mph (56.33 km/h) | 44.24 mph (71.2 km/h) |
| 40 mph (64.37 km/h) | 50.56 mph (81.37 km/h) |
| 45 mph (72.42 km/h) | 56.88 mph (91.54 km/h) |
| 50 mph (80.47 km/h) | 63.2 mph (101.71 km/h) |
| 55 mph (88.51 km/h) | 69.52 mph (111.88 km/h) |
| 60 mph (96.56 km/h) | 75.84 mph (122.05 km/h) |
| 65 mph (104.61 km/h) | 82.16 mph (132.23 km/h) |
| 70 mph (112.65 km/h) | 88.48 mph (142.4 km/h) |
| 75 mph (120.7 km/h) | 94.8 mph (152.57 km/h) |
| 80 mph (128.75 km/h) | 101.12 mph (162.74 km/h) |
| 85 mph (136.79 km/h) | 107.44 mph (172.91 km/h) |
| 90 mph (144.84 km/h) | 113.76 mph (183.08 km/h) |
| 95 mph (152.89 km/h) | 120.08 mph (193.25 km/h) |
| 100 mph (160.93 km/h) | 126.4 mph (203.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1542 | 1791 | 1929 | 2014 | 2106 | 2172 | 2244 | 2329 | 2447 | 2565 | 2697 | 2802 | 2992 | 3202 | 3366 | 3471 | 3530 | 3746 | 4048 | 4704 |
Better Fuel Economy Factory Ratios Increased Power
