Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-20 | 245/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.97 (710.5) | 26.75 (679.5) | -1.22 (-31) -4.4% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 87.88 (2232.1) | 84.04 (2134.71) | -3.83 (-97.39) -4.4% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 3.38 (85.75) | -0.61 (-15.5) -15.3% |
| Revolutions per mile (km) | 721 (448.01) | 753.89 (468.45) | 32.89 (20.44) 4.6% |
245/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.13 mph (30.78 km/h) |
| 25 mph (40.23 km/h) | 23.91 mph (38.48 km/h) |
| 30 mph (48.28 km/h) | 28.69 mph (46.17 km/h) |
| 35 mph (56.33 km/h) | 33.47 mph (53.87 km/h) |
| 40 mph (64.37 km/h) | 38.25 mph (61.57 km/h) |
| 45 mph (72.42 km/h) | 43.04 mph (69.26 km/h) |
| 50 mph (80.47 km/h) | 47.82 mph (76.96 km/h) |
| 55 mph (88.51 km/h) | 52.6 mph (84.65 km/h) |
| 60 mph (96.56 km/h) | 57.38 mph (92.35 km/h) |
| 65 mph (104.61 km/h) | 62.16 mph (100.04 km/h) |
| 70 mph (112.65 km/h) | 66.95 mph (107.74 km/h) |
| 75 mph (120.7 km/h) | 71.73 mph (115.43 km/h) |
| 80 mph (128.75 km/h) | 76.51 mph (123.13 km/h) |
| 85 mph (136.79 km/h) | 81.29 mph (130.83 km/h) |
| 90 mph (144.84 km/h) | 86.07 mph (138.52 km/h) |
| 95 mph (152.89 km/h) | 90.86 mph (146.22 km/h) |
| 100 mph (160.93 km/h) | 95.64 mph (153.91 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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