Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/60-13 | 185/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.21 (564.2) | 24.65 (626.2) | 2.44 (62) 11% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 69.78 (1772.49) | 77.45 (1967.27) | 7.67 (194.78) 11% |
| Sidewall Height inches (mm) | 4.61 (117) | 5.83 (148) | 1.22 (31) 26.5% |
| Revolutions per mile (km) | 907.96 (564.18) | 818.06 (508.32) | -89.9 (-55.86) -9.9% |
185/80-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.2 mph (35.72 km/h) |
| 25 mph (40.23 km/h) | 27.75 mph (44.65 km/h) |
| 30 mph (48.28 km/h) | 33.3 mph (53.59 km/h) |
| 35 mph (56.33 km/h) | 38.85 mph (62.52 km/h) |
| 40 mph (64.37 km/h) | 44.4 mph (71.45 km/h) |
| 45 mph (72.42 km/h) | 49.95 mph (80.38 km/h) |
| 50 mph (80.47 km/h) | 55.49 mph (89.31 km/h) |
| 55 mph (88.51 km/h) | 61.04 mph (98.24 km/h) |
| 60 mph (96.56 km/h) | 66.59 mph (107.17 km/h) |
| 65 mph (104.61 km/h) | 72.14 mph (116.1 km/h) |
| 70 mph (112.65 km/h) | 77.69 mph (125.03 km/h) |
| 75 mph (120.7 km/h) | 83.24 mph (133.96 km/h) |
| 80 mph (128.75 km/h) | 88.79 mph (142.9 km/h) |
| 85 mph (136.79 km/h) | 94.34 mph (151.83 km/h) |
| 90 mph (144.84 km/h) | 99.89 mph (160.76 km/h) |
| 95 mph (152.89 km/h) | 105.44 mph (169.69 km/h) |
| 100 mph (160.93 km/h) | 110.99 mph (178.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2418 | 2604 | 2720 | 2844 | 2932 | 3030 | 3145 | 3304 | 3464 | 3641 | 3783 | 4040 | 4323 | 4545 | 4686 | 4766 | 5058 | 5466 | 6352 |
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