215/50R20 tire size in inches
A 215/50R20 tire measures
28.5" tall × 8.5" wide
4.23" sidewall on a 20" wheel. 709 revolutions per mile.
215/50R20 means a tire 215 mm wide, with sidewalls 50% as tall as the tire is wide (108 mm), radial construction (R), for a 20 inch wheel.
215/50R20 specs
| Overall diameter (height) | 28.46 inches (723 mm) |
|---|---|
| Section width | 8.46 inches (215 mm) |
| Sidewall height | 4.23 inches (108 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 89.4 inches (2,271 mm) |
| Revolutions per mile | 709 |
| Revolutions per kilometer | 440 |
| Approximate rim width | 6.0" to 7.5" |
| In inches (flotation style) | 28.5x8.5R20 |
| 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 215/50R20 on a 20" wheel
These 20" sizes are within 3% of 215/50R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 305/35R20 | 28.41" | 12.01" | −0.2% | 59.9 mph | Compare |
| 355/30R20 | 28.39" | 13.98" | −0.3% | 59.8 mph | Compare |
| 265/40R20 | 28.35" | 10.43" | −0.4% | 59.8 mph | Compare |
| 235/45R20 | 28.33" | 9.25" | −0.5% | 59.7 mph | Compare |
| 275/40R20 | 28.66" | 10.83" | +0.7% | 60.4 mph | Compare |
| 245/45R20 | 28.68" | 9.65" | +0.8% | 60.5 mph | Compare |
| 315/35R20 | 28.68" | 12.40" | +0.8% | 60.5 mph | Compare |
| 345/30R20 | 28.15" | 13.58" | −1.1% | 59.3 mph | Compare |
| 295/35R20 | 28.13" | 11.61" | −1.2% | 59.3 mph | Compare |
| 225/50R20 | 28.86" | 8.86" | +1.4% | 60.8 mph | Compare |
| 255/40R20 | 28.03" | 10.04" | −1.5% | 59.1 mph | Compare |
| 225/45R20 | 27.97" | 8.86" | −1.7% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 285/60R15 | 15" | 28.46" | 0.0% | Compare |
| 245/75R14 | 14" | 28.47" | 0.0% | Compare |
| 235/35R22 | 22" | 28.48" | 0.0% | Compare |
| 265/55R17 | 17" | 28.48" | 0.0% | Compare |
| 295/45R18 | 18" | 28.45" | 0.0% | Compare |
| 315/30R21 | 21" | 28.44" | −0.1% | Compare |
| 205/65R18 | 18" | 28.49" | +0.1% | Compare |
| 245/80R13 | 13" | 28.43" | −0.1% | Compare |
| 265/50R18 | 18" | 28.43" | −0.1% | Compare |
| 275/30R22 | 22" | 28.50" | +0.1% | Compare |
| 245/70R15 | 15" | 28.50" | +0.1% | Compare |
| 345/35R19 | 19" | 28.51" | +0.2% | Compare |
One size up or down
- 225/50R20wider: 28.9" × 8.9"
- 215/45R20lower profile: 27.6" × 8.5"
- 215/55R20taller sidewall: 29.3" × 8.5"
Compare 215/50R20 with another size
Questions
- How tall is a 215/50R20 tire?
- A 215/50R20 tire is 28.5 inches tall (723 mm), calculated from the size. It is 8.5 inches wide with 4.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 215/50R20 mean?
- 215/50R20 means a tire 215 mm wide, with sidewalls 50% as tall as the tire is wide (108 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 215/50R20 tire make?
- About 709 revolutions per mile, based on a circumference of 89.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 215/50R20 tire?
- Roughly 6.0" to 7.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 305/35R20 instead of 215/50R20?
- 305/35R20 is −0.06 inches (−0.2%) in overall diameter, so at an indicated 60 mph you would be doing 59.9 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.