Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/55-18 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.04 (737.7) | 31.73 (805.9) | 2.69 (68.2) 9.2% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 91.24 (2317.55) | 99.68 (2531.81) | 8.44 (214.26) 9.2% |
| Sidewall Height inches (mm) | 5.52 (140.25) | 7.86 (199.75) | 2.34 (59.5) 42.4% |
| Revolutions per mile (km) | 694.42 (431.49) | 635.65 (394.97) | -58.77 (-36.52) -8.5% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.85 mph (35.16 km/h) |
| 25 mph (40.23 km/h) | 27.31 mph (43.95 km/h) |
| 30 mph (48.28 km/h) | 32.77 mph (52.74 km/h) |
| 35 mph (56.33 km/h) | 38.24 mph (61.53 km/h) |
| 40 mph (64.37 km/h) | 43.7 mph (70.33 km/h) |
| 45 mph (72.42 km/h) | 49.16 mph (79.12 km/h) |
| 50 mph (80.47 km/h) | 54.62 mph (87.91 km/h) |
| 55 mph (88.51 km/h) | 60.08 mph (96.7 km/h) |
| 60 mph (96.56 km/h) | 65.55 mph (105.49 km/h) |
| 65 mph (104.61 km/h) | 71.01 mph (114.28 km/h) |
| 70 mph (112.65 km/h) | 76.47 mph (123.07 km/h) |
| 75 mph (120.7 km/h) | 81.93 mph (131.86 km/h) |
| 80 mph (128.75 km/h) | 87.4 mph (140.65 km/h) |
| 85 mph (136.79 km/h) | 92.86 mph (149.44 km/h) |
| 90 mph (144.84 km/h) | 98.32 mph (158.23 km/h) |
| 95 mph (152.89 km/h) | 103.78 mph (167.02 km/h) |
| 100 mph (160.93 km/h) | 109.24 mph (175.81 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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