Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-16 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.93 (683.9) | 30.8 (782.4) | 3.88 (98.5) 14.4% |
| Width inches (mm) | 7.28 (185) | 9.25 (235) | 1.97 (50) 27% |
| Circum. inches (mm) | 84.59 (2148.54) | 96.77 (2457.98) | 12.18 (309.45) 14.4% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 7.4 (188) | 1.94 (49.25) 35.5% |
| Revolutions per mile (km) | 749.04 (465.43) | 654.74 (406.84) | -94.3 (-58.6) -12.6% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.88 mph (36.82 km/h) |
| 25 mph (40.23 km/h) | 28.6 mph (46.03 km/h) |
| 30 mph (48.28 km/h) | 34.32 mph (55.23 km/h) |
| 35 mph (56.33 km/h) | 40.04 mph (64.44 km/h) |
| 40 mph (64.37 km/h) | 45.76 mph (73.65 km/h) |
| 45 mph (72.42 km/h) | 51.48 mph (82.85 km/h) |
| 50 mph (80.47 km/h) | 57.2 mph (92.06 km/h) |
| 55 mph (88.51 km/h) | 62.92 mph (101.26 km/h) |
| 60 mph (96.56 km/h) | 68.64 mph (110.47 km/h) |
| 65 mph (104.61 km/h) | 74.36 mph (119.67 km/h) |
| 70 mph (112.65 km/h) | 80.08 mph (128.88 km/h) |
| 75 mph (120.7 km/h) | 85.8 mph (138.09 km/h) |
| 80 mph (128.75 km/h) | 91.52 mph (147.29 km/h) |
| 85 mph (136.79 km/h) | 97.24 mph (156.5 km/h) |
| 90 mph (144.84 km/h) | 102.96 mph (165.7 km/h) |
| 95 mph (152.89 km/h) | 108.68 mph (174.91 km/h) |
| 100 mph (160.93 km/h) | 114.4 mph (184.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1666 | 1936 | 2085 | 2177 | 2276 | 2347 | 2425 | 2517 | 2645 | 2772 | 2914 | 3028 | 3233 | 3460 | 3637 | 3751 | 3815 | 4048 | 4375 | 5084 |
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