245/75R15 tire size in inches
A 245/75R15 tire measures
29.5" tall × 9.6" wide
7.23" sidewall on a 15" wheel. 684 revolutions per mile.
245/75R15 means a tire 245 mm wide, with sidewalls 75% as tall as the tire is wide (184 mm), radial construction (R), for a 15 inch wheel.
245/75R15 specs
| Overall diameter (height) | 29.47 inches (749 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 7.23 inches (184 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 92.6 inches (2,351 mm) |
| Revolutions per mile | 684 |
| Revolutions per kilometer | 425 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 29.5x9.6R15 |
| 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 245/75R15 on a 15" wheel
These 15" sizes are within 3% of 245/75R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 215/85R15 | 29.39" | 8.46" | −0.3% | 59.8 mph | Compare |
| 285/65R15 | 29.59" | 11.22" | +0.4% | 60.2 mph | Compare |
| 265/70R15 | 29.61" | 10.43" | +0.5% | 60.3 mph | Compare |
| 225/80R15 | 29.17" | 8.86" | −1.0% | 59.4 mph | Compare |
| 235/80R15 | 29.80" | 9.25" | +1.1% | 60.7 mph | Compare |
| 275/65R15 | 29.07" | 10.83" | −1.3% | 59.2 mph | Compare |
| 255/70R15 | 29.06" | 10.04" | −1.4% | 59.2 mph | Compare |
| 30x9.50R15 | 30.00" | 9.50" | +1.8% | 61.1 mph | Compare |
| 225/85R15 | 30.06" | 8.86" | +2.0% | 61.2 mph | Compare |
| 235/75R15 | 28.88" | 9.25" | −2.0% | 58.8 mph | Compare |
| 255/75R15 | 30.06" | 10.04" | +2.0% | 61.2 mph | Compare |
| 275/70R15 | 30.16" | 10.83" | +2.3% | 61.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 285/60R16 | 16" | 29.46" | 0.0% | Compare |
| 265/55R18 | 18" | 29.48" | 0.0% | Compare |
| 295/45R19 | 19" | 29.45" | −0.1% | Compare |
| 205/65R19 | 19" | 29.49" | +0.1% | Compare |
| 315/30R22 | 22" | 29.44" | −0.1% | Compare |
| 245/80R14 | 14" | 29.43" | −0.1% | Compare |
| 245/70R16 | 16" | 29.50" | +0.1% | Compare |
| 265/50R19 | 19" | 29.43" | −0.1% | Compare |
| 345/35R20 | 20" | 29.51" | +0.1% | Compare |
| 195/75R18 | 18" | 29.52" | +0.2% | Compare |
| 225/65R18 | 18" | 29.52" | +0.2% | Compare |
| 325/45R18 | 18" | 29.52" | +0.2% | Compare |
One size up or down
- 235/75R15narrower: 28.9" × 9.3"
- 255/75R15wider: 30.1" × 10.0"
- 245/70R15lower profile: 28.5" × 9.6"
- 245/80R15taller sidewall: 30.4" × 9.6"
Compare 245/75R15 with another size
Questions
- How tall is a 245/75R15 tire?
- A 245/75R15 tire is 29.5 inches tall (749 mm), calculated from the size. It is 9.6 inches wide with 7.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/75R15 mean?
- 245/75R15 means a tire 245 mm wide, with sidewalls 75% as tall as the tire is wide (184 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 245/75R15 tire make?
- About 684 revolutions per mile, based on a circumference of 92.6 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/75R15 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 215/85R15 instead of 245/75R15?
- 215/85R15 is −0.08 inches (−0.3%) in overall diameter, so at an indicated 60 mph you would be doing 59.8 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.