Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-15 | 185/50-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.54 (598) | 23.28 (591.4) | -0.26 (-6.6) -1.1% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 73.96 (1878.67) | 73.15 (1857.94) | -0.82 (-20.73) -1.1% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.64 (92.5) | -0.63 (-16) -14.7% |
| Revolutions per mile (km) | 856.64 (532.29) | 866.2 (538.23) | 9.56 (5.94) 1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.78 mph (31.83 km/h) |
| 25 mph (40.23 km/h) | 24.72 mph (39.79 km/h) |
| 30 mph (48.28 km/h) | 29.67 mph (47.75 km/h) |
| 35 mph (56.33 km/h) | 34.61 mph (55.71 km/h) |
| 40 mph (64.37 km/h) | 39.56 mph (63.66 km/h) |
| 45 mph (72.42 km/h) | 44.5 mph (71.62 km/h) |
| 50 mph (80.47 km/h) | 49.45 mph (79.58 km/h) |
| 55 mph (88.51 km/h) | 54.39 mph (87.54 km/h) |
| 60 mph (96.56 km/h) | 59.34 mph (95.5 km/h) |
| 65 mph (104.61 km/h) | 64.28 mph (103.45 km/h) |
| 70 mph (112.65 km/h) | 69.23 mph (111.41 km/h) |
| 75 mph (120.7 km/h) | 74.17 mph (119.37 km/h) |
| 80 mph (128.75 km/h) | 79.12 mph (127.33 km/h) |
| 85 mph (136.79 km/h) | 84.06 mph (135.28 km/h) |
| 90 mph (144.84 km/h) | 89.01 mph (143.24 km/h) |
| 95 mph (152.89 km/h) | 93.95 mph (151.2 km/h) |
| 100 mph (160.93 km/h) | 98.9 mph (159.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2204 | 2561 | 2758 | 2880 | 3011 | 3105 | 3208 | 3330 | 3499 | 3668 | 3855 | 4005 | 4277 | 4577 | 4812 | 4962 | 5046 | 5356 | 5787 | 6725 |
Better Fuel Economy Factory Ratios Increased Power
