275/55R20 Tire Size: Dimensions & Inches
275/55R20 is approximately 31.91 inches tall and 10.83 inches wide, with a calculated sidewall height of 5.96 inches.
275/55R20 Dimensions
What Does 275/55R20 Mean?
The tire-size code describes the tire's nominal width, sidewall proportion, construction and wheel diameter:
275/55R20 in Inches
A 275/55R20 tire has a nominal width of 275 mm (about 10.83 inches). Its calculated sidewall is about 5.96 inches, producing an overall diameter of about 31.91 inches.
| Tire size | 275/55R20 |
|---|---|
| Width | 275 mm / 10.83 in |
| Aspect ratio | 55% |
| Overall diameter | 31.91 in |
| Sidewall height | 5.96 in |
| Wheel diameter | 20 in |
| Circumference | 100.25 in |
| Approx. revs per mile | 632 |
Is 275/55R20 a 32-Inch Tire?
Yes, approximately. A 275/55R20 tire has a calculated overall diameter of about 31.91 inches, so it is commonly grouped with 32-inch-class tires. Actual mounted diameter can vary slightly by tire manufacturer, tread design, approved rim width, load and inflation pressure.
Compare 275/55R20 With Another Tire Size
Check diameter, width, sidewall and speedometer differences before considering a different size.
Related 20-Inch Tire Sizes
275/55R20 FAQ
How tall is a 275/55R20 tire?
The calculated overall diameter is about 31.91 inches.
Is 275/55R20 a 32-inch tire?
Approximately. Its calculated diameter is about 31.91 inches, so it is commonly grouped with 32-inch-class tires. Actual mounted dimensions vary by tire model and manufacturer.
How wide is a 275/55R20 tire?
The nominal section width is 275 mm, which is about 10.83 inches.
What wheel diameter does 275/55R20 use?
This size is designed around a 20-inch wheel diameter. Wheel width and full vehicle fitment still need to be checked separately.