Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-14 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.38 (670.1) | 30.8 (782.4) | 4.42 (112.3) 16.8% |
| Width inches (mm) | 7.28 (185) | 9.25 (235) | 1.97 (50) 27% |
| Circum. inches (mm) | 82.88 (2105.18) | 96.77 (2457.98) | 13.89 (352.8) 16.8% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 7.4 (188) | 1.21 (30.75) 19.6% |
| Revolutions per mile (km) | 764.47 (475.02) | 654.74 (406.84) | -109.73 (-68.18) -14.4% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.35 mph (37.58 km/h) |
| 25 mph (40.23 km/h) | 29.19 mph (46.98 km/h) |
| 30 mph (48.28 km/h) | 35.03 mph (56.37 km/h) |
| 35 mph (56.33 km/h) | 40.87 mph (65.77 km/h) |
| 40 mph (64.37 km/h) | 46.7 mph (75.16 km/h) |
| 45 mph (72.42 km/h) | 52.54 mph (84.56 km/h) |
| 50 mph (80.47 km/h) | 58.38 mph (93.95 km/h) |
| 55 mph (88.51 km/h) | 64.22 mph (103.35 km/h) |
| 60 mph (96.56 km/h) | 70.06 mph (112.74 km/h) |
| 65 mph (104.61 km/h) | 75.89 mph (122.14 km/h) |
| 70 mph (112.65 km/h) | 81.73 mph (131.53 km/h) |
| 75 mph (120.7 km/h) | 87.57 mph (140.93 km/h) |
| 80 mph (128.75 km/h) | 93.41 mph (150.32 km/h) |
| 85 mph (136.79 km/h) | 99.24 mph (159.72 km/h) |
| 90 mph (144.84 km/h) | 105.08 mph (169.11 km/h) |
| 95 mph (152.89 km/h) | 110.92 mph (178.51 km/h) |
| 100 mph (160.93 km/h) | 116.76 mph (187.91 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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