215/55R15 tire size in inches
A 215/55R15 tire measures
24.3" tall × 8.5" wide
4.66" sidewall on a 15" wheel. 830 revolutions per mile.
215/55R15 means a tire 215 mm wide, with sidewalls 55% as tall as the tire is wide (118 mm), radial construction (R), for a 15 inch wheel.
215/55R15 specs
| Overall diameter (height) | 24.31 inches (618 mm) |
|---|---|
| Section width | 8.46 inches (215 mm) |
| Sidewall height | 4.66 inches (118 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 76.4 inches (1,940 mm) |
| Revolutions per mile | 830 |
| Revolutions per kilometer | 515 |
| Approximate rim width | 6.0" to 7.5" |
| In inches (flotation style) | 24.3x8.5R15 |
| Aspect ratio | 55% |
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 215/55R15 on a 15" wheel
These 15" sizes are within 3% of 215/55R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 235/50R15 | 24.25" | 9.25" | −0.2% | 59.9 mph | Compare |
| 265/45R15 | 24.39" | 10.43" | +0.3% | 60.2 mph | Compare |
| 195/60R15 | 24.21" | 7.68" | −0.4% | 59.8 mph | Compare |
| 185/65R15 | 24.47" | 7.28" | +0.6% | 60.4 mph | Compare |
| 165/70R15 | 24.09" | 6.50" | −0.9% | 59.5 mph | Compare |
| 255/45R15 | 24.04" | 10.04" | −1.1% | 59.3 mph | Compare |
| 175/70R15 | 24.65" | 6.89" | +1.4% | 60.8 mph | Compare |
| 245/50R15 | 24.65" | 9.65" | +1.4% | 60.8 mph | Compare |
| 175/65R15 | 23.96" | 6.89" | −1.5% | 59.1 mph | Compare |
| 205/60R15 | 24.69" | 8.07" | +1.5% | 60.9 mph | Compare |
| 165/75R15 | 24.74" | 6.50" | +1.8% | 61.1 mph | Compare |
| 205/55R15 | 23.88" | 8.07" | −1.8% | 58.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/30R19 | 19" | 24.31" | 0.0% | Compare |
| 265/35R17 | 17" | 24.30" | 0.0% | Compare |
| 205/70R13 | 13" | 24.30" | 0.0% | Compare |
| 235/45R16 | 16" | 24.33" | +0.1% | Compare |
| 175/75R14 | 14" | 24.33" | +0.1% | Compare |
| 185/50R17 | 17" | 24.28" | −0.1% | Compare |
| 265/40R16 | 16" | 24.35" | +0.1% | Compare |
| 175/60R16 | 16" | 24.27" | −0.2% | Compare |
| 205/45R17 | 17" | 24.26" | −0.2% | Compare |
| 155/85R14 | 14" | 24.37" | +0.3% | Compare |
| 215/25R20 | 20" | 24.23" | −0.3% | Compare |
| 165/80R14 | 14" | 24.39" | +0.3% | Compare |
One size up or down
- 205/55R15narrower: 23.9" × 8.1"
- 225/55R15wider: 24.7" × 8.9"
- 215/50R15lower profile: 23.5" × 8.5"
- 215/60R15taller sidewall: 25.2" × 8.5"
Compare 215/55R15 with another size
Questions
- How tall is a 215/55R15 tire?
- A 215/55R15 tire is 24.3 inches tall (618 mm), calculated from the size. It is 8.5 inches wide with 4.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 215/55R15 mean?
- 215/55R15 means a tire 215 mm wide, with sidewalls 55% as tall as the tire is wide (118 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 215/55R15 tire make?
- About 830 revolutions per mile, based on a circumference of 76.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 215/55R15 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 235/50R15 instead of 215/55R15?
- 235/50R15 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.