245/50R20 Tire Size
Dimensions of a 245/50R20 tire in inches and millimeters, with equivalent and plus sizes.
245/50R20 dimensions
A 245/50R20 tire is 245 mm wide with a sidewall that is 50% of the width (122 mm), mounted on a 20-inch rim. Its overall diameter is about 29.65 inches (753 mm), so it is roughly a 29.6-inch tall tire.
| Overall diameter | 29.65 in | 753 mm |
|---|---|---|
| Section width | 9.65 in | 245 mm |
| Sidewall height | 4.82 in | 122.5 mm |
| Rim diameter | 20 in | 508 mm |
| Circumference | 93.1 in | 2366 mm |
| Revolutions | 680 per mile | 423 per km |
Equivalent sizes on a 20-inch rim
These sizes stay within ±3% of the 245/50R20 diameter on the same rim — the range most tire shops use. Not every size is made in every tire model, and only sizes approved for your vehicle (with the right load and speed rating) should be fitted.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 225/55R20 | 29.74 in | 756 mm | +0.3% |
| 265/45R20 | 29.39 in | 746 mm | -0.9% |
| 235/50R20 | 29.25 in | 743 mm | -1.3% |
| 255/50R20 | 30.04 in | 763 mm | +1.3% |
| 235/55R20 | 30.18 in | 766 mm | +1.8% |
| 255/45R20 | 29.04 in | 738 mm | -2.1% |
| 225/50R20 | 28.86 in | 733 mm | -2.7% |
| 265/50R20 | 30.43 in | 773 mm | +2.7% |
Plus and minus sizes
Changing the rim size? These options on 19-, 21- and 22-inch rims keep the overall diameter within ±3%.
| Size | Diameter | mm | Difference |
|---|---|---|---|
| 275/40R21 | 29.66 in | 753 mm | +0.1% |
| 245/45R21 | 29.68 in | 754 mm | +0.1% |
| 245/55R19 | 29.61 in | 752 mm | -0.1% |
| 275/35R22 | 29.58 in | 751 mm | -0.2% |
| 245/40R22 | 29.72 in | 755 mm | +0.2% |
| 275/50R19 | 29.83 in | 758 mm | +0.6% |
| 265/50R19 | 29.43 in | 748 mm | -0.7% |
| 235/40R22 | 29.40 in | 747 mm | -0.8% |
| 265/40R21 | 29.35 in | 745 mm | -1.0% |
| 235/45R21 | 29.33 in | 745 mm | -1.1% |
Compare 245/50R20 with another size →
Frequently asked questions
How tall is a 245/50R20 tire?
About 29.65 inches (753 mm) in overall diameter.
How wide is a 245/50R20 tire?
The section width is 245 mm, about 9.6 inches.
What size can replace 245/50R20?
On the same rim, 225/55R20 is the closest size (+0.3% diameter). Use only sizes approved for your vehicle.
How many revolutions per mile does a 245/50R20 tire make?
About 680 revolutions per mile (423 per km).
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