215/25R20 tire size in inches
A 215/25R20 tire measures
24.2" tall × 8.5" wide
2.12" sidewall on a 20" wheel. 832 revolutions per mile.
215/25R20 means a tire 215 mm wide, with sidewalls 25% as tall as the tire is wide (54 mm), radial construction (R), for a 20 inch wheel.
215/25R20 specs
| Overall diameter (height) | 24.23 inches (616 mm) |
|---|---|
| Section width | 8.46 inches (215 mm) |
| Sidewall height | 2.12 inches (54 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 76.1 inches (1,934 mm) |
| Revolutions per mile | 832 |
| Revolutions per kilometer | 517 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 24.2x8.5R20 |
| 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 215/25R20 on a 20" wheel
These 20" sizes are within 3% of 215/25R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/25R20 | 24.43" | 8.86" | +0.8% | 60.5 mph | Compare |
| 235/25R20 | 24.63" | 9.25" | +1.6% | 61.0 mph | Compare |
| 245/25R20 | 24.82" | 9.65" | +2.4% | 61.5 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 265/25R19 | 19" | 24.22" | −0.1% | Compare |
| 195/60R15 | 15" | 24.21" | −0.1% | Compare |
| 235/50R15 | 15" | 24.25" | +0.1% | Compare |
| 205/45R17 | 17" | 24.26" | +0.1% | Compare |
| 225/35R18 | 18" | 24.20" | −0.1% | Compare |
| 185/70R14 | 14" | 24.20" | −0.1% | Compare |
| 175/60R16 | 16" | 24.27" | +0.1% | Compare |
| 185/50R17 | 17" | 24.28" | +0.2% | Compare |
| 235/55R14 | 14" | 24.18" | −0.2% | Compare |
| 205/70R13 | 13" | 24.30" | +0.3% | Compare |
| 265/35R17 | 17" | 24.30" | +0.3% | Compare |
| 215/60R14 | 14" | 24.16" | −0.3% | Compare |
One size up or down
Compare 215/25R20 with another size
Questions
- How tall is a 215/25R20 tire?
- A 215/25R20 tire is 24.2 inches tall (616 mm), calculated from the size. It is 8.5 inches wide with 2.1 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 215/25R20 mean?
- 215/25R20 means a tire 215 mm wide, with sidewalls 25% as tall as the tire is wide (54 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 215/25R20 tire make?
- About 832 revolutions per mile, based on a circumference of 76.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 215/25R20 tire?
- Roughly 7.0" to 8.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/25R20 instead of 215/25R20?
- 225/25R20 is +0.20 inches (+0.8%) in overall diameter, so at an indicated 60 mph you would be doing 60.5 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.