Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/50-16 | 185/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.68 (601.4) | 24.47 (621.5) | 0.79 (20.1) 3.3% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 74.38 (1889.35) | 76.87 (1952.5) | 2.49 (63.15) 3.3% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 4.73 (120.25) | 0.9 (22.75) 23.3% |
| Revolutions per mile (km) | 851.8 (529.28) | 824.25 (512.16) | -27.55 (-17.12) -3.2% |
185/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.67 mph (33.26 km/h) |
| 25 mph (40.23 km/h) | 25.84 mph (41.58 km/h) |
| 30 mph (48.28 km/h) | 31 mph (49.89 km/h) |
| 35 mph (56.33 km/h) | 36.17 mph (58.21 km/h) |
| 40 mph (64.37 km/h) | 41.34 mph (66.53 km/h) |
| 45 mph (72.42 km/h) | 46.5 mph (74.84 km/h) |
| 50 mph (80.47 km/h) | 51.67 mph (83.16 km/h) |
| 55 mph (88.51 km/h) | 56.84 mph (91.47 km/h) |
| 60 mph (96.56 km/h) | 62.01 mph (99.79 km/h) |
| 65 mph (104.61 km/h) | 67.17 mph (108.1 km/h) |
| 70 mph (112.65 km/h) | 72.34 mph (116.42 km/h) |
| 75 mph (120.7 km/h) | 77.51 mph (124.74 km/h) |
| 80 mph (128.75 km/h) | 82.67 mph (133.05 km/h) |
| 85 mph (136.79 km/h) | 87.84 mph (141.37 km/h) |
| 90 mph (144.84 km/h) | 93.01 mph (149.68 km/h) |
| 95 mph (152.89 km/h) | 98.18 mph (158 km/h) |
| 100 mph (160.93 km/h) | 103.34 mph (166.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2098 | 2437 | 2624 | 2740 | 2865 | 2954 | 3053 | 3169 | 3329 | 3490 | 3668 | 3811 | 4070 | 4356 | 4579 | 4722 | 4802 | 5097 | 5507 | 6400 |
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