335/45R20 tire size in inches
A 335/45R20 tire measures
31.9" tall × 13.2" wide
5.94" sidewall on a 20" wheel. 633 revolutions per mile.
335/45R20 means a tire 335 mm wide, with sidewalls 45% as tall as the tire is wide (151 mm), radial construction (R), for a 20 inch wheel.
335/45R20 specs
| Overall diameter (height) | 31.87 inches (810 mm) |
|---|---|
| Section width | 13.19 inches (335 mm) |
| Sidewall height | 5.94 inches (151 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 100.1 inches (2,543 mm) |
| Revolutions per mile | 633 |
| Revolutions per kilometer | 393 |
| Approximate rim width | 11.0" to 12.5" |
| In inches (flotation style) | 31.9x13.2R20 |
| Aspect ratio | 45% |
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 335/45R20 on a 20" wheel
These 20" sizes are within 3% of 335/45R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 275/55R20 | 31.91" | 10.83" | +0.1% | 60.1 mph | Compare |
| 305/50R20 | 32.01" | 12.01" | +0.4% | 60.3 mph | Compare |
| 235/65R20 | 32.03" | 9.25" | +0.5% | 60.3 mph | Compare |
| 255/60R20 | 32.05" | 10.04" | +0.6% | 60.3 mph | Compare |
| 295/50R20 | 31.61" | 11.61" | −0.8% | 59.5 mph | Compare |
| 245/60R20 | 31.57" | 9.65" | −0.9% | 59.4 mph | Compare |
| 345/45R20 | 32.22" | 13.58" | +1.1% | 60.7 mph | Compare |
| 225/65R20 | 31.52" | 8.86" | −1.1% | 59.3 mph | Compare |
| 325/45R20 | 31.52" | 12.80" | −1.1% | 59.3 mph | Compare |
| 265/55R20 | 31.48" | 10.43" | −1.2% | 59.3 mph | Compare |
| 285/55R20 | 32.34" | 11.22" | +1.5% | 60.9 mph | Compare |
| 315/50R20 | 32.40" | 12.40" | +1.7% | 61.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 345/40R21 | 21" | 31.87" | 0.0% | Compare |
| 235/75R18 | 18" | 31.88" | 0.0% | Compare |
| 315/60R17 | 17" | 31.88" | 0.0% | Compare |
| 285/35R24 | 24" | 31.85" | 0.0% | Compare |
| 285/75R15 | 15" | 31.83" | −0.1% | Compare |
| 335/30R24 | 24" | 31.91" | +0.1% | Compare |
| 275/50R21 | 21" | 31.83" | −0.1% | Compare |
| 315/40R22 | 22" | 31.92" | +0.2% | Compare |
| 305/45R21 | 21" | 31.81" | −0.2% | Compare |
| 295/60R18 | 18" | 31.94" | +0.2% | Compare |
| 325/50R19 | 19" | 31.80" | −0.2% | Compare |
| 355/35R22 | 22" | 31.78" | −0.3% | Compare |
One size up or down
- 325/45R20narrower: 31.5" × 12.8"
- 345/45R20wider: 32.2" × 13.6"
- 335/40R20lower profile: 30.6" × 13.2"
- 335/50R20taller sidewall: 33.2" × 13.2"
Compare 335/45R20 with another size
Questions
- How tall is a 335/45R20 tire?
- A 335/45R20 tire is 31.9 inches tall (810 mm), calculated from the size. It is 13.2 inches wide with 5.9 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 335/45R20 mean?
- 335/45R20 means a tire 335 mm wide, with sidewalls 45% as tall as the tire is wide (151 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 335/45R20 tire make?
- About 633 revolutions per mile, based on a circumference of 100.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 335/45R20 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 275/55R20 instead of 335/45R20?
- 275/55R20 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.