Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 30.8 (782.4) | 1.63 (41.4) 5.6% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 91.65 (2327.92) | 96.77 (2457.98) | 5.12 (130.06) 5.6% |
| Sidewall Height inches (mm) | 7.09 (180) | 7.4 (188) | 0.31 (8) 4.4% |
| Revolutions per mile (km) | 691.32 (429.57) | 654.74 (406.84) | -36.58 (-22.73) -5.3% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.12 mph (33.99 km/h) |
| 25 mph (40.23 km/h) | 26.4 mph (42.48 km/h) |
| 30 mph (48.28 km/h) | 31.68 mph (50.98 km/h) |
| 35 mph (56.33 km/h) | 36.96 mph (59.47 km/h) |
| 40 mph (64.37 km/h) | 42.23 mph (67.97 km/h) |
| 45 mph (72.42 km/h) | 47.51 mph (76.47 km/h) |
| 50 mph (80.47 km/h) | 52.79 mph (84.96 km/h) |
| 55 mph (88.51 km/h) | 58.07 mph (93.46 km/h) |
| 60 mph (96.56 km/h) | 63.35 mph (101.96 km/h) |
| 65 mph (104.61 km/h) | 68.63 mph (110.45 km/h) |
| 70 mph (112.65 km/h) | 73.91 mph (118.95 km/h) |
| 75 mph (120.7 km/h) | 79.19 mph (127.44 km/h) |
| 80 mph (128.75 km/h) | 84.47 mph (135.94 km/h) |
| 85 mph (136.79 km/h) | 89.75 mph (144.44 km/h) |
| 90 mph (144.84 km/h) | 95.03 mph (152.93 km/h) |
| 95 mph (152.89 km/h) | 100.31 mph (161.43 km/h) |
| 100 mph (160.93 km/h) | 105.59 mph (169.93 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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