Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 31.73 (805.9) | 2.56 (64.9) 8.8% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 91.65 (2327.92) | 99.68 (2531.81) | 8.03 (203.89) 8.8% |
| Sidewall Height inches (mm) | 7.09 (180) | 7.86 (199.75) | 0.78 (19.75) 11% |
| Revolutions per mile (km) | 691.32 (429.57) | 635.65 (394.97) | -55.67 (-34.59) -8.1% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.75 mph (35.01 km/h) |
| 25 mph (40.23 km/h) | 27.19 mph (43.76 km/h) |
| 30 mph (48.28 km/h) | 32.63 mph (52.51 km/h) |
| 35 mph (56.33 km/h) | 38.07 mph (61.26 km/h) |
| 40 mph (64.37 km/h) | 43.5 mph (70.01 km/h) |
| 45 mph (72.42 km/h) | 48.94 mph (78.76 km/h) |
| 50 mph (80.47 km/h) | 54.38 mph (87.52 km/h) |
| 55 mph (88.51 km/h) | 59.82 mph (96.27 km/h) |
| 60 mph (96.56 km/h) | 65.26 mph (105.02 km/h) |
| 65 mph (104.61 km/h) | 70.69 mph (113.77 km/h) |
| 70 mph (112.65 km/h) | 76.13 mph (122.52 km/h) |
| 75 mph (120.7 km/h) | 81.57 mph (131.27 km/h) |
| 80 mph (128.75 km/h) | 87.01 mph (140.02 km/h) |
| 85 mph (136.79 km/h) | 92.44 mph (148.78 km/h) |
| 90 mph (144.84 km/h) | 97.88 mph (157.53 km/h) |
| 95 mph (152.89 km/h) | 103.32 mph (166.28 km/h) |
| 100 mph (160.93 km/h) | 108.76 mph (175.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1618 | 1879 | 2024 | 2113 | 2210 | 2278 | 2354 | 2444 | 2568 | 2691 | 2829 | 2939 | 3139 | 3359 | 3531 | 3641 | 3703 | 3930 | 4247 | 4935 |
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