335/40R20 tire size in inches
A 335/40R20 tire measures
30.6" tall × 13.2" wide
5.28" sidewall on a 20" wheel. 660 revolutions per mile.
335/40R20 means a tire 335 mm wide, with sidewalls 40% as tall as the tire is wide (134 mm), radial construction (R), for a 20 inch wheel.
335/40R20 specs
| Overall diameter (height) | 30.55 inches (776 mm) |
|---|---|
| Section width | 13.19 inches (335 mm) |
| Sidewall height | 5.28 inches (134 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 96.0 inches (2,438 mm) |
| Revolutions per mile | 660 |
| Revolutions per kilometer | 410 |
| Approximate rim width | 11.0" to 12.5" |
| In inches (flotation style) | 30.6x13.2R20 |
| Aspect ratio | 40% |
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 335/40R20 on a 20" wheel
These 20" sizes are within 3% of 335/40R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 245/55R20 | 30.61" | 9.65" | +0.2% | 60.1 mph | Compare |
| 225/60R20 | 30.63" | 8.86" | +0.3% | 60.2 mph | Compare |
| 295/45R20 | 30.45" | 11.61" | −0.3% | 59.8 mph | Compare |
| 265/50R20 | 30.43" | 10.43" | −0.4% | 59.8 mph | Compare |
| 305/45R20 | 30.81" | 12.01" | +0.8% | 60.5 mph | Compare |
| 275/50R20 | 30.83" | 10.83" | +0.9% | 60.5 mph | Compare |
| 325/40R20 | 30.24" | 12.80" | −1.0% | 59.4 mph | Compare |
| 345/40R20 | 30.87" | 13.58" | +1.0% | 60.6 mph | Compare |
| 235/55R20 | 30.18" | 9.25" | −1.2% | 59.3 mph | Compare |
| 215/60R20 | 30.16" | 8.46" | −1.3% | 59.2 mph | Compare |
| 215/65R20 | 31.00" | 8.46" | +1.5% | 60.9 mph | Compare |
| 285/45R20 | 30.10" | 11.22" | −1.5% | 59.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 265/65R17 | 17" | 30.56" | 0.0% | Compare |
| 245/65R18 | 18" | 30.54" | 0.0% | Compare |
| 245/60R19 | 19" | 30.57" | +0.1% | Compare |
| 265/60R18 | 18" | 30.52" | −0.1% | Compare |
| 285/65R16 | 16" | 30.59" | +0.1% | Compare |
| 225/65R19 | 19" | 30.52" | −0.1% | Compare |
| 325/45R19 | 19" | 30.52" | −0.1% | Compare |
| 335/25R24 | 24" | 30.59" | +0.1% | Compare |
| 345/35R21 | 21" | 30.51" | −0.1% | Compare |
| 245/70R17 | 17" | 30.50" | −0.2% | Compare |
| 265/70R16 | 16" | 30.61" | +0.2% | Compare |
| 305/40R21 | 21" | 30.61" | +0.2% | Compare |
One size up or down
- 325/40R20narrower: 30.2" × 12.8"
- 345/40R20wider: 30.9" × 13.6"
- 335/35R20lower profile: 29.2" × 13.2"
- 335/45R20taller sidewall: 31.9" × 13.2"
Compare 335/40R20 with another size
Questions
- How tall is a 335/40R20 tire?
- A 335/40R20 tire is 30.6 inches tall (776 mm), calculated from the size. It is 13.2 inches wide with 5.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 335/40R20 mean?
- 335/40R20 means a tire 335 mm wide, with sidewalls 40% as tall as the tire is wide (134 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 335/40R20 tire make?
- About 660 revolutions per mile, based on a circumference of 96.0 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 335/40R20 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 245/55R20 instead of 335/40R20?
- 245/55R20 is +0.06 inches (+0.2%) 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.