225/75R15 tire size in inches
A 225/75R15 tire measures
28.3" tall × 8.9" wide
6.64" sidewall on a 15" wheel. 713 revolutions per mile.
225/75R15 means a tire 225 mm wide, with sidewalls 75% as tall as the tire is wide (169 mm), radial construction (R), for a 15 inch wheel.
225/75R15 specs
| Overall diameter (height) | 28.29 inches (718 mm) |
|---|---|
| Section width | 8.86 inches (225 mm) |
| Sidewall height | 6.64 inches (169 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 88.9 inches (2,257 mm) |
| Revolutions per mile | 713 |
| Revolutions per kilometer | 443 |
| Approximate rim width | 6.0" to 7.5" |
| In inches (flotation style) | 28.3x8.9R15 |
| Aspect ratio | 75% |
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 225/75R15 on a 15" wheel
These 15" sizes are within 3% of 225/75R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 285/60R15 | 28.46" | 11.22" | +0.6% | 60.4 mph | Compare |
| 245/70R15 | 28.50" | 9.65" | +0.8% | 60.5 mph | Compare |
| 195/85R15 | 28.05" | 7.68" | −0.8% | 59.5 mph | Compare |
| 255/65R15 | 28.05" | 10.04" | −0.8% | 59.5 mph | Compare |
| 215/80R15 | 28.54" | 8.46" | +0.9% | 60.5 mph | Compare |
| 265/65R15 | 28.56" | 10.43" | +1.0% | 60.6 mph | Compare |
| 275/60R15 | 27.99" | 10.83" | −1.0% | 59.4 mph | Compare |
| 235/70R15 | 27.95" | 9.25" | −1.2% | 59.3 mph | Compare |
| 205/80R15 | 27.91" | 8.07" | −1.3% | 59.2 mph | Compare |
| 205/85R15 | 28.72" | 8.07" | +1.5% | 60.9 mph | Compare |
| 215/75R15 | 27.70" | 8.46" | −2.1% | 58.7 mph | Compare |
| 235/75R15 | 28.88" | 9.25" | +2.1% | 61.3 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 195/80R16 | 16" | 28.28" | 0.0% | Compare |
| 295/40R19 | 19" | 28.29" | 0.0% | Compare |
| 205/70R17 | 17" | 28.30" | 0.0% | Compare |
| 265/35R21 | 21" | 28.30" | +0.1% | Compare |
| 215/55R19 | 19" | 28.31" | +0.1% | Compare |
| 265/30R22 | 22" | 28.26" | −0.1% | Compare |
| 235/50R19 | 19" | 28.25" | −0.1% | Compare |
| 235/45R20 | 20" | 28.33" | +0.1% | Compare |
| 325/40R18 | 18" | 28.24" | −0.2% | Compare |
| 335/35R19 | 19" | 28.23" | −0.2% | Compare |
| 285/55R16 | 16" | 28.34" | +0.2% | Compare |
| 265/40R20 | 20" | 28.35" | +0.2% | Compare |
One size up or down
- 215/75R15narrower: 27.7" × 8.5"
- 235/75R15wider: 28.9" × 9.3"
- 225/70R15lower profile: 27.4" × 8.9"
- 225/80R15taller sidewall: 29.2" × 8.9"
Compare 225/75R15 with another size
Questions
- How tall is a 225/75R15 tire?
- A 225/75R15 tire is 28.3 inches tall (718 mm), calculated from the size. It is 8.9 inches wide with 6.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 225/75R15 mean?
- 225/75R15 means a tire 225 mm wide, with sidewalls 75% as tall as the tire is wide (169 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 225/75R15 tire make?
- About 713 revolutions per mile, based on a circumference of 88.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 225/75R15 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 285/60R15 instead of 225/75R15?
- 285/60R15 is +0.18 inches (+0.6%) in overall diameter, so at an indicated 60 mph you would be doing 60.4 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.