Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-17 | 245/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.18 (690.3) | 26.75 (679.5) | -0.43 (-10.8) -1.6% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 85.38 (2168.64) | 84.04 (2134.71) | -1.34 (-33.93) -1.6% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 3.38 (85.75) | -1.71 (-43.5) -33.7% |
| Revolutions per mile (km) | 742.1 (461.12) | 753.89 (468.45) | 11.79 (7.33) 1.6% |
245/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.69 mph (31.68 km/h) |
| 25 mph (40.23 km/h) | 24.61 mph (39.6 km/h) |
| 30 mph (48.28 km/h) | 29.53 mph (47.53 km/h) |
| 35 mph (56.33 km/h) | 34.45 mph (55.45 km/h) |
| 40 mph (64.37 km/h) | 39.37 mph (63.37 km/h) |
| 45 mph (72.42 km/h) | 44.3 mph (71.29 km/h) |
| 50 mph (80.47 km/h) | 49.22 mph (79.21 km/h) |
| 55 mph (88.51 km/h) | 54.14 mph (87.13 km/h) |
| 60 mph (96.56 km/h) | 59.06 mph (95.05 km/h) |
| 65 mph (104.61 km/h) | 63.98 mph (102.97 km/h) |
| 70 mph (112.65 km/h) | 68.9 mph (110.89 km/h) |
| 75 mph (120.7 km/h) | 73.83 mph (118.81 km/h) |
| 80 mph (128.75 km/h) | 78.75 mph (126.73 km/h) |
| 85 mph (136.79 km/h) | 83.67 mph (134.65 km/h) |
| 90 mph (144.84 km/h) | 88.59 mph (142.58 km/h) |
| 95 mph (152.89 km/h) | 93.51 mph (150.5 km/h) |
| 100 mph (160.93 km/h) | 98.44 mph (158.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | 2229 | 2400 | 2506 | 2621 | 2702 | 2792 | 2898 | 3045 | 3192 | 3355 | 3486 | 3723 | 3984 | 4188 | 4319 | 4392 | 4662 | 5037 | 5854 |
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