Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-20 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.32 (948) | 31.73 (805.9) | -5.59 (-142.1) -15% |
| Width inches (mm) | 10.83 (275) | 9.25 (235) | -1.57 (-40) -14.5% |
| Circum. inches (mm) | 117.25 (2978.23) | 99.68 (2531.81) | -17.58 (-446.42) -15% |
| Sidewall Height inches (mm) | 8.66 (220) | 7.86 (199.75) | -0.8 (-20.25) -9.2% |
| Revolutions per mile (km) | 540.37 (335.77) | 635.65 (394.97) | 95.28 (59.2) 17.6% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17 mph (27.36 km/h) |
| 25 mph (40.23 km/h) | 21.25 mph (34.2 km/h) |
| 30 mph (48.28 km/h) | 25.5 mph (41.04 km/h) |
| 35 mph (56.33 km/h) | 29.75 mph (47.88 km/h) |
| 40 mph (64.37 km/h) | 34 mph (54.72 km/h) |
| 45 mph (72.42 km/h) | 38.25 mph (61.57 km/h) |
| 50 mph (80.47 km/h) | 42.51 mph (68.41 km/h) |
| 55 mph (88.51 km/h) | 46.76 mph (75.25 km/h) |
| 60 mph (96.56 km/h) | 51.01 mph (82.09 km/h) |
| 65 mph (104.61 km/h) | 55.26 mph (88.93 km/h) |
| 70 mph (112.65 km/h) | 59.51 mph (95.77 km/h) |
| 75 mph (120.7 km/h) | 63.76 mph (102.61 km/h) |
| 80 mph (128.75 km/h) | 68.01 mph (109.45 km/h) |
| 85 mph (136.79 km/h) | 72.26 mph (116.29 km/h) |
| 90 mph (144.84 km/h) | 76.51 mph (123.13 km/h) |
| 95 mph (152.89 km/h) | 80.76 mph (129.97 km/h) |
| 100 mph (160.93 km/h) | 85.01 mph (136.81 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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