235/55R15 tire size in inches
A 235/55R15 tire measures
25.2" tall × 9.3" wide
5.09" sidewall on a 15" wheel. 801 revolutions per mile.
235/55R15 means a tire 235 mm wide, with sidewalls 55% as tall as the tire is wide (129 mm), radial construction (R), for a 15 inch wheel.
235/55R15 specs
| Overall diameter (height) | 25.18 inches (640 mm) |
|---|---|
| Section width | 9.25 inches (235 mm) |
| Sidewall height | 5.09 inches (129 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 79.1 inches (2,009 mm) |
| Revolutions per mile | 801 |
| Revolutions per kilometer | 498 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 25.2x9.3R15 |
| 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 235/55R15 on a 15" wheel
These 15" sizes are within 3% of 235/55R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 185/70R15 | 25.20" | 7.28" | +0.1% | 60.0 mph | Compare |
| 215/60R15 | 25.16" | 8.46" | −0.1% | 60.0 mph | Compare |
| 285/45R15 | 25.10" | 11.22" | −0.3% | 59.8 mph | Compare |
| 255/50R15 | 25.04" | 10.04" | −0.5% | 59.7 mph | Compare |
| 175/75R15 | 25.33" | 6.89" | +0.6% | 60.4 mph | Compare |
| 195/65R15 | 24.98" | 7.68" | −0.8% | 59.5 mph | Compare |
| 165/80R15 | 25.39" | 6.50" | +0.9% | 60.5 mph | Compare |
| 265/50R15 | 25.43" | 10.43" | +1.0% | 60.6 mph | Compare |
| 205/65R15 | 25.49" | 8.07" | +1.3% | 60.8 mph | Compare |
| 245/55R15 | 25.61" | 9.65" | +1.7% | 61.0 mph | Compare |
| 165/75R15 | 24.74" | 6.50" | −1.7% | 59.0 mph | Compare |
| 225/55R15 | 24.74" | 8.86" | −1.7% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/35R19 | 19" | 25.20" | +0.1% | Compare |
| 315/25R19 | 19" | 25.20" | +0.1% | Compare |
| 195/60R16 | 16" | 25.21" | +0.1% | Compare |
| 265/25R20 | 20" | 25.22" | +0.2% | Compare |
| 295/35R17 | 17" | 25.13" | −0.2% | Compare |
| 205/75R13 | 13" | 25.11" | −0.3% | Compare |
| 235/50R16 | 16" | 25.25" | +0.3% | Compare |
| 235/60R14 | 14" | 25.10" | −0.3% | Compare |
| 265/30R19 | 19" | 25.26" | +0.3% | Compare |
| 205/45R18 | 18" | 25.26" | +0.3% | Compare |
| 225/40R18 | 18" | 25.09" | −0.4% | Compare |
| 215/30R20 | 20" | 25.08" | −0.4% | Compare |
One size up or down
- 225/55R15narrower: 24.7" × 8.9"
- 245/55R15wider: 25.6" × 9.6"
- 235/50R15lower profile: 24.3" × 9.3"
- 235/60R15taller sidewall: 26.1" × 9.3"
Compare 235/55R15 with another size
Questions
- How tall is a 235/55R15 tire?
- A 235/55R15 tire is 25.2 inches tall (640 mm), calculated from the size. It is 9.3 inches wide with 5.1 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 235/55R15 mean?
- 235/55R15 means a tire 235 mm wide, with sidewalls 55% as tall as the tire is wide (129 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 235/55R15 tire make?
- About 801 revolutions per mile, based on a circumference of 79.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 235/55R15 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 185/70R15 instead of 235/55R15?
- 185/70R15 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.