Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/50-15 | 185/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.68 (576) | 23.01 (584.5) | 0.33 (8.5) 1.5% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 71.24 (1809.56) | 72.29 (1836.26) | 1.05 (26.7) 1.5% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 4.01 (101.75) | 0.17 (4.25) 4.4% |
| Revolutions per mile (km) | 889.36 (552.62) | 876.42 (544.58) | -12.93 (-8.04) -1.5% |
185/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.66 km/h) |
| 25 mph (40.23 km/h) | 25.37 mph (40.83 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (48.99 km/h) |
| 35 mph (56.33 km/h) | 35.52 mph (57.16 km/h) |
| 40 mph (64.37 km/h) | 40.59 mph (65.32 km/h) |
| 45 mph (72.42 km/h) | 45.66 mph (73.49 km/h) |
| 50 mph (80.47 km/h) | 50.74 mph (81.65 km/h) |
| 55 mph (88.51 km/h) | 55.81 mph (89.82 km/h) |
| 60 mph (96.56 km/h) | 60.89 mph (97.99 km/h) |
| 65 mph (104.61 km/h) | 65.96 mph (106.15 km/h) |
| 70 mph (112.65 km/h) | 71.03 mph (114.32 km/h) |
| 75 mph (120.7 km/h) | 76.11 mph (122.48 km/h) |
| 80 mph (128.75 km/h) | 81.18 mph (130.65 km/h) |
| 85 mph (136.79 km/h) | 86.25 mph (138.81 km/h) |
| 90 mph (144.84 km/h) | 91.33 mph (146.98 km/h) |
| 95 mph (152.89 km/h) | 96.4 mph (155.14 km/h) |
| 100 mph (160.93 km/h) | 101.48 mph (163.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2230 | 2591 | 2790 | 2914 | 3047 | 3141 | 3246 | 3369 | 3540 | 3711 | 3901 | 4053 | 4328 | 4631 | 4869 | 5021 | 5106 | 5419 | 5856 | 6805 |
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