175/65R15 tire size in inches
A 175/65R15 tire measures
24.0" tall × 6.9" wide
4.48" sidewall on a 15" wheel. 842 revolutions per mile.
175/65R15 means a tire 175 mm wide, with sidewalls 65% as tall as the tire is wide (114 mm), radial construction (R), for a 15 inch wheel.
175/65R15 specs
| Overall diameter (height) | 23.96 inches (609 mm) |
|---|---|
| Section width | 6.89 inches (175 mm) |
| Sidewall height | 4.48 inches (114 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 75.3 inches (1,912 mm) |
| Revolutions per mile | 842 |
| Revolutions per kilometer | 523 |
| Approximate rim width | 4.5" to 6.0" |
| In inches (flotation style) | 24.0x6.9R15 |
| Aspect ratio | 65% |
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 175/65R15 on a 15" wheel
These 15" sizes are within 3% of 175/65R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 255/45R15 | 24.04" | 10.04" | +0.3% | 60.2 mph | Compare |
| 205/55R15 | 23.88" | 8.07" | −0.3% | 59.8 mph | Compare |
| 225/50R15 | 23.86" | 8.86" | −0.4% | 59.8 mph | Compare |
| 165/70R15 | 24.09" | 6.50" | +0.6% | 60.3 mph | Compare |
| 185/60R15 | 23.74" | 7.28" | −0.9% | 59.5 mph | Compare |
| 195/60R15 | 24.21" | 7.68" | +1.1% | 60.6 mph | Compare |
| 245/45R15 | 23.68" | 9.65" | −1.2% | 59.3 mph | Compare |
| 235/50R15 | 24.25" | 9.25" | +1.2% | 60.7 mph | Compare |
| 215/55R15 | 24.31" | 8.46" | +1.5% | 60.9 mph | Compare |
| 265/45R15 | 24.39" | 10.43" | +1.8% | 61.1 mph | Compare |
| 215/50R15 | 23.46" | 8.46" | −2.1% | 58.8 mph | Compare |
| 185/65R15 | 24.47" | 7.28" | +2.1% | 61.3 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/45R16 | 16" | 23.97" | +0.1% | Compare |
| 195/65R14 | 14" | 23.98" | +0.1% | Compare |
| 185/75R13 | 13" | 23.93" | −0.1% | Compare |
| 215/35R18 | 18" | 23.93" | −0.1% | Compare |
| 215/65R13 | 13" | 24.00" | +0.2% | Compare |
| 195/45R17 | 17" | 23.91" | −0.2% | Compare |
| 185/55R16 | 16" | 24.01" | +0.2% | Compare |
| 255/25R19 | 19" | 24.02" | +0.3% | Compare |
| 175/80R13 | 13" | 24.02" | +0.3% | Compare |
| 255/35R17 | 17" | 24.03" | +0.3% | Compare |
| 255/40R16 | 16" | 24.03" | +0.3% | Compare |
| 165/85R13 | 13" | 24.04" | +0.4% | Compare |
One size up or down
- 165/65R15narrower: 23.4" × 6.5"
- 185/65R15wider: 24.5" × 7.3"
- 175/60R15lower profile: 23.3" × 6.9"
- 175/70R15taller sidewall: 24.6" × 6.9"
Compare 175/65R15 with another size
Questions
- How tall is a 175/65R15 tire?
- A 175/65R15 tire is 24.0 inches tall (609 mm), calculated from the size. It is 6.9 inches wide with 4.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 175/65R15 mean?
- 175/65R15 means a tire 175 mm wide, with sidewalls 65% as tall as the tire is wide (114 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 175/65R15 tire make?
- About 842 revolutions per mile, based on a circumference of 75.3 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 175/65R15 tire?
- Roughly 4.5" to 6.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 255/45R15 instead of 175/65R15?
- 255/45R15 is +0.08 inches (+0.3%) in overall diameter, so at an indicated 60 mph you would be doing 60.2 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.