215/45R15 tire size in inches
A 215/45R15 tire measures
22.6" tall × 8.5" wide
3.81" sidewall on a 15" wheel. 892 revolutions per mile.
215/45R15 means a tire 215 mm wide, with sidewalls 45% as tall as the tire is wide (97 mm), radial construction (R), for a 15 inch wheel.
215/45R15 specs
| Overall diameter (height) | 22.62 inches (575 mm) |
|---|---|
| Section width | 8.46 inches (215 mm) |
| Sidewall height | 3.81 inches (97 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 71.1 inches (1,805 mm) |
| Revolutions per mile | 892 |
| Revolutions per kilometer | 554 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 22.6x8.5R15 |
| 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 215/45R15 on a 15" wheel
These 15" sizes are within 3% of 215/45R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 175/55R15 | 22.58" | 6.89" | −0.2% | 59.9 mph | Compare |
| 195/50R15 | 22.68" | 7.68" | +0.3% | 60.2 mph | Compare |
| 165/60R15 | 22.80" | 6.50" | +0.8% | 60.5 mph | Compare |
| 185/50R15 | 22.28" | 7.28" | −1.5% | 59.1 mph | Compare |
| 225/45R15 | 22.97" | 8.86" | +1.6% | 60.9 mph | Compare |
| 205/45R15 | 22.26" | 8.07" | −1.6% | 59.1 mph | Compare |
| 185/55R15 | 23.01" | 7.28" | +1.7% | 61.0 mph | Compare |
| 205/50R15 | 23.07" | 8.07" | +2.0% | 61.2 mph | Compare |
| 165/55R15 | 22.15" | 6.50" | −2.1% | 58.7 mph | Compare |
| 175/60R15 | 23.27" | 6.89" | +2.9% | 61.7 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 175/70R13 | 13" | 22.65" | +0.1% | Compare |
| 205/35R17 | 17" | 22.65" | +0.1% | Compare |
| 185/45R16 | 16" | 22.56" | −0.3% | Compare |
| 205/60R13 | 13" | 22.69" | +0.3% | Compare |
| 155/70R14 | 14" | 22.54" | −0.3% | Compare |
| 145/85R13 | 13" | 22.70" | +0.4% | Compare |
| 185/60R14 | 14" | 22.74" | +0.5% | Compare |
| 165/75R13 | 13" | 22.74" | +0.6% | Compare |
| 155/80R13 | 13" | 22.76" | +0.6% | Compare |
| 185/65R13 | 13" | 22.47" | −0.7% | Compare |
| 215/40R16 | 16" | 22.77" | +0.7% | Compare |
| 205/40R16 | 16" | 22.46" | −0.7% | Compare |
One size up or down
Compare 215/45R15 with another size
Questions
- How tall is a 215/45R15 tire?
- A 215/45R15 tire is 22.6 inches tall (575 mm), calculated from the size. It is 8.5 inches wide with 3.8 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 215/45R15 mean?
- 215/45R15 means a tire 215 mm wide, with sidewalls 45% as tall as the tire is wide (97 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 215/45R15 tire make?
- About 892 revolutions per mile, based on a circumference of 71.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 215/45R15 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 175/55R15 instead of 215/45R15?
- 175/55R15 is −0.04 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.