275/25R20 tire size in inches
A 275/25R20 tire measures
25.4" tall × 10.8" wide
2.71" sidewall on a 20" wheel. 794 revolutions per mile.
275/25R20 means a tire 275 mm wide, with sidewalls 25% as tall as the tire is wide (69 mm), radial construction (R), for a 20 inch wheel.
275/25R20 specs
| Overall diameter (height) | 25.41 inches (645 mm) |
|---|---|
| Section width | 10.83 inches (275 mm) |
| Sidewall height | 2.71 inches (69 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 79.8 inches (2,028 mm) |
| Revolutions per mile | 794 |
| Revolutions per kilometer | 493 |
| Approximate rim width | 9.0" to 10.5" |
| In inches (flotation style) | 25.4x10.8R20 |
| Aspect ratio | 25% |
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 275/25R20 on a 20" wheel
These 20" sizes are within 3% of 275/25R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/30R20 | 25.31" | 8.86" | −0.4% | 59.8 mph | Compare |
| 235/30R20 | 25.55" | 9.25" | +0.5% | 60.3 mph | Compare |
| 265/25R20 | 25.22" | 10.43" | −0.8% | 59.5 mph | Compare |
| 285/25R20 | 25.61" | 11.22" | +0.8% | 60.5 mph | Compare |
| 215/30R20 | 25.08" | 8.46" | −1.3% | 59.2 mph | Compare |
| 245/30R20 | 25.79" | 9.65" | +1.5% | 60.9 mph | Compare |
| 255/25R20 | 25.02" | 10.04" | −1.5% | 59.1 mph | Compare |
| 295/25R20 | 25.81" | 11.61" | +1.5% | 60.9 mph | Compare |
| 215/35R20 | 25.93" | 8.46" | +2.0% | 61.2 mph | Compare |
| 245/25R20 | 24.82" | 9.65" | −2.3% | 58.6 mph | Compare |
| 305/25R20 | 26.00" | 12.01" | +2.3% | 61.4 mph | Compare |
| 255/30R20 | 26.02" | 10.04" | +2.4% | 61.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 305/35R17 | 17" | 25.41" | 0.0% | Compare |
| 225/70R13 | 13" | 25.40" | 0.0% | Compare |
| 235/40R18 | 18" | 25.40" | 0.0% | Compare |
| 325/25R19 | 19" | 25.40" | −0.1% | Compare |
| 225/25R21 | 21" | 25.43" | +0.1% | Compare |
| 165/80R15 | 15" | 25.39" | −0.1% | Compare |
| 265/50R15 | 15" | 25.43" | +0.1% | Compare |
| 265/45R16 | 16" | 25.39" | −0.1% | Compare |
| 185/85R13 | 13" | 25.38" | −0.1% | Compare |
| 195/55R17 | 17" | 25.44" | +0.1% | Compare |
| 205/40R19 | 19" | 25.46" | +0.2% | Compare |
| 215/50R17 | 17" | 25.46" | +0.2% | Compare |
One size up or down
- 265/25R20narrower: 25.2" × 10.4"
- 285/25R20wider: 25.6" × 11.2"
- 275/30R20taller sidewall: 26.5" × 10.8"
Compare 275/25R20 with another size
Questions
- How tall is a 275/25R20 tire?
- A 275/25R20 tire is 25.4 inches tall (645 mm), calculated from the size. It is 10.8 inches wide with 2.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 275/25R20 mean?
- 275/25R20 means a tire 275 mm wide, with sidewalls 25% as tall as the tire is wide (69 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 275/25R20 tire make?
- About 794 revolutions per mile, based on a circumference of 79.8 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 275/25R20 tire?
- Roughly 9.0" to 10.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/30R20 instead of 275/25R20?
- 225/30R20 is −0.10 inches (−0.4%) in overall diameter, so at an indicated 60 mph you would be doing 59.8 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.