Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 155/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 22.76 (578.2) | -1.57 (-40) -6.5% |
| Width inches (mm) | 7.09 (180) | 6.1 (155) | -0.98 (-25) -13.9% |
| Circum. inches (mm) | 76.46 (1942.13) | 71.51 (1816.47) | -4.95 (-125.66) -6.5% |
| Sidewall Height inches (mm) | 5.67 (144) | 4.88 (124) | -0.79 (-20) -13.9% |
| Revolutions per mile (km) | 828.65 (514.9) | 885.97 (550.52) | 57.33 (35.62) 6.9% |
155/80-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.71 mph (30.1 km/h) |
| 25 mph (40.23 km/h) | 23.38 mph (37.63 km/h) |
| 30 mph (48.28 km/h) | 28.06 mph (45.16 km/h) |
| 35 mph (56.33 km/h) | 32.74 mph (52.68 km/h) |
| 40 mph (64.37 km/h) | 37.41 mph (60.21 km/h) |
| 45 mph (72.42 km/h) | 42.09 mph (67.73 km/h) |
| 50 mph (80.47 km/h) | 46.76 mph (75.26 km/h) |
| 55 mph (88.51 km/h) | 51.44 mph (82.79 km/h) |
| 60 mph (96.56 km/h) | 56.12 mph (90.31 km/h) |
| 65 mph (104.61 km/h) | 60.79 mph (97.84 km/h) |
| 70 mph (112.65 km/h) | 65.47 mph (105.37 km/h) |
| 75 mph (120.7 km/h) | 70.15 mph (112.89 km/h) |
| 80 mph (128.75 km/h) | 74.82 mph (120.42 km/h) |
| 85 mph (136.79 km/h) | 79.5 mph (127.94 km/h) |
| 90 mph (144.84 km/h) | 84.18 mph (135.47 km/h) |
| 95 mph (152.89 km/h) | 88.85 mph (143 km/h) |
| 100 mph (160.93 km/h) | 93.53 mph (150.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2255 | 2619 | 2821 | 2945 | 3080 | 3176 | 3281 | 3406 | 3579 | 3751 | 3943 | 4097 | 4375 | 4682 | 4922 | 5075 | 5162 | 5478 | 5920 | 6879 |
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