265/25R21 tire size in inches
A 265/25R21 tire measures
26.2" tall × 10.4" wide
2.61" sidewall on a 21" wheel. 769 revolutions per mile.
265/25R21 means a tire 265 mm wide, with sidewalls 25% as tall as the tire is wide (66 mm), radial construction (R), for a 21 inch wheel.
265/25R21 specs
| Overall diameter (height) | 26.22 inches (666 mm) |
|---|---|
| Section width | 10.43 inches (265 mm) |
| Sidewall height | 2.61 inches (66 mm) |
| Wheel (rim) diameter | 21 inches |
| Circumference | 82.4 inches (2,092 mm) |
| Revolutions per mile | 769 |
| Revolutions per kilometer | 478 |
| Approximate rim width | 8.5" to 10.0" |
| In inches (flotation style) | 26.2x10.4R21 |
| 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 265/25R21 on a 21" wheel
These 21" sizes are within 3% of 265/25R21's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/30R21 | 26.31" | 8.86" | +0.4% | 60.2 mph | Compare |
| 275/25R21 | 26.41" | 10.83" | +0.8% | 60.5 mph | Compare |
| 255/25R21 | 26.02" | 10.04" | −0.8% | 59.5 mph | Compare |
| 235/30R21 | 26.55" | 9.25" | +1.3% | 60.8 mph | Compare |
| 245/25R21 | 25.82" | 9.65" | −1.5% | 59.1 mph | Compare |
| 285/25R21 | 26.61" | 11.22" | +1.5% | 60.9 mph | Compare |
| 245/30R21 | 26.79" | 9.65" | +2.2% | 61.3 mph | Compare |
| 235/25R21 | 25.63" | 9.25" | −2.3% | 58.6 mph | Compare |
| 295/25R21 | 26.81" | 11.61" | +2.3% | 61.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 195/60R17 | 17" | 26.21" | 0.0% | Compare |
| 285/50R15 | 15" | 26.22" | 0.0% | Compare |
| 305/30R19 | 19" | 26.20" | 0.0% | Compare |
| 225/35R20 | 20" | 26.20" | −0.1% | Compare |
| 315/25R20 | 20" | 26.20" | −0.1% | Compare |
| 185/70R16 | 16" | 26.20" | −0.1% | Compare |
| 235/50R17 | 17" | 26.25" | +0.1% | Compare |
| 235/55R16 | 16" | 26.18" | −0.2% | Compare |
| 265/30R20 | 20" | 26.26" | +0.2% | Compare |
| 205/45R19 | 19" | 26.26" | +0.2% | Compare |
| 215/60R16 | 16" | 26.16" | −0.2% | Compare |
| 195/80R14 | 14" | 26.28" | +0.3% | Compare |
One size up or down
- 255/25R21narrower: 26.0" × 10.0"
- 275/25R21wider: 26.4" × 10.8"
- 265/30R21taller sidewall: 27.3" × 10.4"
Compare 265/25R21 with another size
Questions
- How tall is a 265/25R21 tire?
- A 265/25R21 tire is 26.2 inches tall (666 mm), calculated from the size. It is 10.4 inches wide with 2.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 265/25R21 mean?
- 265/25R21 means a tire 265 mm wide, with sidewalls 25% as tall as the tire is wide (66 mm), radial construction (R), for a 21 inch wheel.
- How many revolutions per mile does a 265/25R21 tire make?
- About 769 revolutions per mile, based on a circumference of 82.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 265/25R21 tire?
- Roughly 8.5" to 10.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/30R21 instead of 265/25R21?
- 225/30R21 is +0.10 inches (+0.4%) in overall diameter, so at an indicated 60 mph you would be doing 60.2 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.