335/25R21 tire size in inches
A 335/25R21 tire measures
27.6" tall × 13.2" wide
3.30" sidewall on a 21" wheel. 731 revolutions per mile.
335/25R21 means a tire 335 mm wide, with sidewalls 25% as tall as the tire is wide (84 mm), radial construction (R), for a 21 inch wheel.
335/25R21 specs
| Overall diameter (height) | 27.59 inches (701 mm) |
|---|---|
| Section width | 13.19 inches (335 mm) |
| Sidewall height | 3.30 inches (84 mm) |
| Wheel (rim) diameter | 21 inches |
| Circumference | 86.7 inches (2,202 mm) |
| Revolutions per mile | 731 |
| Revolutions per kilometer | 454 |
| Approximate rim width | 11.0" to 12.5" |
| In inches (flotation style) | 27.6x13.2R21 |
| 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 335/25R21 on a 21" wheel
These 21" sizes are within 3% of 335/25R21's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 275/30R21 | 27.50" | 10.83" | −0.4% | 59.8 mph | Compare |
| 235/35R21 | 27.48" | 9.25" | −0.4% | 59.7 mph | Compare |
| 285/30R21 | 27.73" | 11.22" | +0.5% | 60.3 mph | Compare |
| 245/35R21 | 27.75" | 9.65" | +0.6% | 60.3 mph | Compare |
| 325/25R21 | 27.40" | 12.80" | −0.7% | 59.6 mph | Compare |
| 345/25R21 | 27.79" | 13.58" | +0.7% | 60.4 mph | Compare |
| 265/30R21 | 27.26" | 10.43" | −1.2% | 59.3 mph | Compare |
| 295/30R21 | 27.97" | 11.61" | +1.4% | 60.8 mph | Compare |
| 225/35R21 | 27.20" | 8.86" | −1.4% | 59.1 mph | Compare |
| 315/25R21 | 27.20" | 12.40" | −1.4% | 59.1 mph | Compare |
| 355/25R21 | 27.99" | 13.98" | +1.4% | 60.9 mph | Compare |
| 255/35R21 | 28.03" | 10.04" | +1.6% | 60.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 305/40R18 | 18" | 27.61" | 0.0% | Compare |
| 245/55R17 | 17" | 27.61" | +0.1% | Compare |
| 275/35R20 | 20" | 27.58" | −0.1% | Compare |
| 285/25R22 | 22" | 27.61" | +0.1% | Compare |
| 245/60R16 | 16" | 27.57" | −0.1% | Compare |
| 295/50R16 | 16" | 27.61" | +0.1% | Compare |
| 215/45R20 | 20" | 27.62" | +0.1% | Compare |
| 265/65R14 | 14" | 27.56" | −0.1% | Compare |
| 225/60R17 | 17" | 27.63" | +0.1% | Compare |
| 235/30R22 | 22" | 27.55" | −0.2% | Compare |
| 215/80R14 | 14" | 27.54" | −0.2% | Compare |
| 245/50R18 | 18" | 27.65" | +0.2% | Compare |
One size up or down
- 325/25R21narrower: 27.4" × 12.8"
- 345/25R21wider: 27.8" × 13.6"
- 335/30R21taller sidewall: 28.9" × 13.2"
Compare 335/25R21 with another size
Questions
- How tall is a 335/25R21 tire?
- A 335/25R21 tire is 27.6 inches tall (701 mm), calculated from the size. It is 13.2 inches wide with 3.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 335/25R21 mean?
- 335/25R21 means a tire 335 mm wide, with sidewalls 25% as tall as the tire is wide (84 mm), radial construction (R), for a 21 inch wheel.
- How many revolutions per mile does a 335/25R21 tire make?
- About 731 revolutions per mile, based on a circumference of 86.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 335/25R21 tire?
- Roughly 11.0" to 12.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 275/30R21 instead of 335/25R21?
- 275/30R21 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.