Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/90-16 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.94 (811.4) | 30.8 (782.4) | -1.14 (-29) -3.6% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 100.36 (2549.09) | 96.77 (2457.98) | -3.59 (-91.11) -3.6% |
| Sidewall Height inches (mm) | 7.97 (202.5) | 7.4 (188) | -0.57 (-14.5) -7.2% |
| Revolutions per mile (km) | 631.34 (392.3) | 654.74 (406.84) | 23.4 (14.54) 3.7% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.29 mph (31.04 km/h) |
| 25 mph (40.23 km/h) | 24.11 mph (38.8 km/h) |
| 30 mph (48.28 km/h) | 28.93 mph (46.55 km/h) |
| 35 mph (56.33 km/h) | 33.75 mph (54.31 km/h) |
| 40 mph (64.37 km/h) | 38.57 mph (62.07 km/h) |
| 45 mph (72.42 km/h) | 43.39 mph (69.83 km/h) |
| 50 mph (80.47 km/h) | 48.21 mph (77.59 km/h) |
| 55 mph (88.51 km/h) | 53.03 mph (85.35 km/h) |
| 60 mph (96.56 km/h) | 57.86 mph (93.11 km/h) |
| 65 mph (104.61 km/h) | 62.68 mph (100.87 km/h) |
| 70 mph (112.65 km/h) | 67.5 mph (108.63 km/h) |
| 75 mph (120.7 km/h) | 72.32 mph (116.39 km/h) |
| 80 mph (128.75 km/h) | 77.14 mph (124.15 km/h) |
| 85 mph (136.79 km/h) | 81.96 mph (131.91 km/h) |
| 90 mph (144.84 km/h) | 86.78 mph (139.66 km/h) |
| 95 mph (152.89 km/h) | 91.6 mph (147.42 km/h) |
| 100 mph (160.93 km/h) | 96.43 mph (155.18 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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