245/55R15 tire size in inches
A 245/55R15 tire measures
25.6" tall × 9.6" wide
5.31" sidewall on a 15" wheel. 788 revolutions per mile.
245/55R15 means a tire 245 mm wide, with sidewalls 55% as tall as the tire is wide (135 mm), radial construction (R), for a 15 inch wheel.
245/55R15 specs
| Overall diameter (height) | 25.61 inches (651 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 5.31 inches (135 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 80.5 inches (2,044 mm) |
| Revolutions per mile | 788 |
| Revolutions per kilometer | 489 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 25.6x9.6R15 |
| 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 245/55R15 on a 15" wheel
These 15" sizes are within 3% of 245/55R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/60R15 | 25.63" | 8.86" | +0.1% | 60.0 mph | Compare |
| 205/65R15 | 25.49" | 8.07" | −0.5% | 59.7 mph | Compare |
| 195/70R15 | 25.75" | 7.68" | +0.5% | 60.3 mph | Compare |
| 265/50R15 | 25.43" | 10.43" | −0.7% | 59.6 mph | Compare |
| 165/80R15 | 25.39" | 6.50" | −0.8% | 59.5 mph | Compare |
| 275/50R15 | 25.83" | 10.83" | +0.8% | 60.5 mph | Compare |
| 175/75R15 | 25.33" | 6.89" | −1.1% | 59.4 mph | Compare |
| 185/75R15 | 25.93" | 7.28" | +1.2% | 60.7 mph | Compare |
| 215/65R15 | 26.00" | 8.46" | +1.5% | 60.9 mph | Compare |
| 185/70R15 | 25.20" | 7.28" | −1.6% | 59.0 mph | Compare |
| 175/80R15 | 26.02" | 6.89" | +1.6% | 61.0 mph | Compare |
| 235/55R15 | 25.18" | 9.25" | −1.7% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 285/25R20 | 20" | 25.61" | 0.0% | Compare |
| 215/45R18 | 18" | 25.62" | 0.0% | Compare |
| 235/25R21 | 21" | 25.63" | +0.1% | Compare |
| 335/25R19 | 19" | 25.59" | −0.1% | Compare |
| 275/35R18 | 18" | 25.58" | −0.1% | Compare |
| 245/60R14 | 14" | 25.57" | −0.1% | Compare |
| 175/70R16 | 16" | 25.65" | +0.1% | Compare |
| 245/50R16 | 16" | 25.65" | +0.1% | Compare |
| 185/80R14 | 14" | 25.65" | +0.2% | Compare |
| 275/40R17 | 17" | 25.66" | +0.2% | Compare |
| 235/30R20 | 20" | 25.55" | −0.2% | Compare |
| 195/50R18 | 18" | 25.68" | +0.3% | Compare |
One size up or down
- 235/55R15narrower: 25.2" × 9.3"
- 255/55R15wider: 26.0" × 10.0"
- 245/50R15lower profile: 24.6" × 9.6"
- 245/60R15taller sidewall: 26.6" × 9.6"
Compare 245/55R15 with another size
Questions
- How tall is a 245/55R15 tire?
- A 245/55R15 tire is 25.6 inches tall (651 mm), calculated from the size. It is 9.6 inches wide with 5.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/55R15 mean?
- 245/55R15 means a tire 245 mm wide, with sidewalls 55% as tall as the tire is wide (135 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 245/55R15 tire make?
- About 788 revolutions per mile, based on a circumference of 80.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/55R15 tire?
- Roughly 7.0" to 8.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/60R15 instead of 245/55R15?
- 225/60R15 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.