235/50R20 tire size in inches
A 235/50R20 tire measures
29.3" tall × 9.3" wide
4.63" sidewall on a 20" wheel. 689 revolutions per mile.
235/50R20 means a tire 235 mm wide, with sidewalls 50% as tall as the tire is wide (118 mm), radial construction (R), for a 20 inch wheel.
235/50R20 specs
| Overall diameter (height) | 29.25 inches (743 mm) |
|---|---|
| Section width | 9.25 inches (235 mm) |
| Sidewall height | 4.63 inches (118 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 91.9 inches (2,334 mm) |
| Revolutions per mile | 689 |
| Revolutions per kilometer | 428 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 29.3x9.3R20 |
| Aspect ratio | 50% |
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 235/50R20 on a 20" wheel
These 20" sizes are within 3% of 235/50R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 335/35R20 | 29.23" | 13.19" | −0.1% | 60.0 mph | Compare |
| 295/40R20 | 29.29" | 11.61" | +0.1% | 60.1 mph | Compare |
| 215/55R20 | 29.31" | 8.46" | +0.2% | 60.1 mph | Compare |
| 265/45R20 | 29.39" | 10.43" | +0.5% | 60.3 mph | Compare |
| 255/45R20 | 29.04" | 10.04" | −0.7% | 59.6 mph | Compare |
| 345/35R20 | 29.51" | 13.58" | +0.9% | 60.5 mph | Compare |
| 285/40R20 | 28.98" | 11.22" | −0.9% | 59.4 mph | Compare |
| 325/35R20 | 28.96" | 12.80" | −1.0% | 59.4 mph | Compare |
| 305/40R20 | 29.61" | 12.01" | +1.2% | 60.7 mph | Compare |
| 225/50R20 | 28.86" | 8.86" | −1.3% | 59.2 mph | Compare |
| 245/50R20 | 29.65" | 9.65" | +1.3% | 60.8 mph | Compare |
| 225/55R20 | 29.74" | 8.86" | +1.7% | 61.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 325/40R19 | 19" | 29.24" | −0.1% | Compare |
| 285/50R18 | 18" | 29.22" | −0.1% | Compare |
| 225/75R16 | 16" | 29.29" | +0.1% | Compare |
| 265/25R24 | 24" | 29.22" | −0.1% | Compare |
| 305/30R22 | 22" | 29.20" | −0.2% | Compare |
| 205/70R18 | 18" | 29.30" | +0.2% | Compare |
| 265/35R22 | 22" | 29.30" | +0.2% | Compare |
| 235/55R19 | 19" | 29.18" | −0.3% | Compare |
| 235/45R21 | 21" | 29.33" | +0.3% | Compare |
| 225/80R15 | 15" | 29.17" | −0.3% | Compare |
| 285/55R17 | 17" | 29.34" | +0.3% | Compare |
| 315/45R18 | 18" | 29.16" | −0.3% | Compare |
One size up or down
- 225/50R20narrower: 28.9" × 8.9"
- 245/50R20wider: 29.6" × 9.6"
- 235/45R20lower profile: 28.3" × 9.3"
- 235/55R20taller sidewall: 30.2" × 9.3"
Compare 235/50R20 with another size
Questions
- How tall is a 235/50R20 tire?
- A 235/50R20 tire is 29.3 inches tall (743 mm), calculated from the size. It is 9.3 inches wide with 4.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 235/50R20 mean?
- 235/50R20 means a tire 235 mm wide, with sidewalls 50% as tall as the tire is wide (118 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 235/50R20 tire make?
- About 689 revolutions per mile, based on a circumference of 91.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 235/50R20 tire?
- Roughly 6.5" to 8.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 335/35R20 instead of 235/50R20?
- 335/35R20 is −0.02 inches (−0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.0 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.