265/55R20 tire size in inches
A 265/55R20 tire measures
31.5" tall × 10.4" wide
5.74" sidewall on a 20" wheel. 641 revolutions per mile.
265/55R20 means a tire 265 mm wide, with sidewalls 55% as tall as the tire is wide (146 mm), radial construction (R), for a 20 inch wheel.
265/55R20 specs
| Overall diameter (height) | 31.48 inches (799 mm) |
|---|---|
| Section width | 10.43 inches (265 mm) |
| Sidewall height | 5.74 inches (146 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 98.9 inches (2,512 mm) |
| Revolutions per mile | 641 |
| Revolutions per kilometer | 398 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 31.5x10.4R20 |
| Aspect ratio | 55% |
Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.
Sizes that can replace 265/55R20 on a 20" wheel
These 20" sizes are within 3% of 265/55R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/65R20 | 31.52" | 8.86" | +0.1% | 60.1 mph | Compare |
| 325/45R20 | 31.52" | 12.80" | +0.1% | 60.1 mph | Compare |
| 245/60R20 | 31.57" | 9.65" | +0.3% | 60.2 mph | Compare |
| 295/50R20 | 31.61" | 11.61" | +0.4% | 60.3 mph | Compare |
| 285/50R20 | 31.22" | 11.22" | −0.8% | 59.5 mph | Compare |
| 355/40R20 | 31.18" | 13.98" | −0.9% | 59.4 mph | Compare |
| 315/45R20 | 31.16" | 12.40" | −1.0% | 59.4 mph | Compare |
| 235/60R20 | 31.10" | 9.25" | −1.2% | 59.3 mph | Compare |
| 335/45R20 | 31.87" | 13.19" | +1.3% | 60.8 mph | Compare |
| 255/55R20 | 31.04" | 10.04" | −1.4% | 59.2 mph | Compare |
| 275/55R20 | 31.91" | 10.83" | +1.4% | 60.8 mph | Compare |
| 215/65R20 | 31.00" | 8.46" | −1.5% | 59.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 245/75R17 | 17" | 31.47" | 0.0% | Compare |
| 285/60R18 | 18" | 31.46" | 0.0% | Compare |
| 295/45R21 | 21" | 31.45" | −0.1% | Compare |
| 245/70R18 | 18" | 31.50" | +0.1% | Compare |
| 345/35R22 | 22" | 31.51" | +0.1% | Compare |
| 315/30R24 | 24" | 31.44" | −0.1% | Compare |
| 245/80R16 | 16" | 31.43" | −0.1% | Compare |
| 265/50R21 | 21" | 31.43" | −0.1% | Compare |
| 265/60R19 | 19" | 31.52" | +0.1% | Compare |
| 245/65R19 | 19" | 31.54" | +0.2% | Compare |
| 305/60R17 | 17" | 31.41" | −0.2% | Compare |
| 315/50R19 | 19" | 31.40" | −0.2% | Compare |
One size up or down
- 255/55R20narrower: 31.0" × 10.0"
- 275/55R20wider: 31.9" × 10.8"
- 265/50R20lower profile: 30.4" × 10.4"
- 265/60R20taller sidewall: 32.5" × 10.4"
Compare 265/55R20 with another size
Questions
- How tall is a 265/55R20 tire?
- A 265/55R20 tire is 31.5 inches tall (799 mm), calculated from the size. It is 10.4 inches wide with 5.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 265/55R20 mean?
- 265/55R20 means a tire 265 mm wide, with sidewalls 55% as tall as the tire is wide (146 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 265/55R20 tire make?
- About 641 revolutions per mile, based on a circumference of 98.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 265/55R20 tire?
- Roughly 7.5" to 9.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/65R20 instead of 265/55R20?
- 225/65R20 is +0.04 inches (+0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.