275/85R15 tire size in inches
A 275/85R15 tire measures
33.4" tall × 10.8" wide
9.20" sidewall on a 15" wheel. 604 revolutions per mile.
275/85R15 means a tire 275 mm wide, with sidewalls 85% as tall as the tire is wide (234 mm), radial construction (R), for a 15 inch wheel.
275/85R15 specs
| Overall diameter (height) | 33.41 inches (849 mm) |
|---|---|
| Section width | 10.83 inches (275 mm) |
| Sidewall height | 9.20 inches (234 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 104.9 inches (2,666 mm) |
| Revolutions per mile | 604 |
| Revolutions per kilometer | 375 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 33.4x10.8R15 |
| Aspect ratio | 85% |
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 275/85R15 on a 15" wheel
These 15" sizes are within 3% of 275/85R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 33x12.50R15 | 33.00" | 12.50" | −1.2% | 59.3 mph | Compare |
| 285/80R15 | 32.95" | 11.22" | −1.4% | 59.2 mph | Compare |
| 265/85R15 | 32.74" | 10.43" | −2.0% | 58.8 mph | Compare |
| 285/85R15 | 34.07" | 11.22" | +2.0% | 61.2 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 305/60R19 | 19" | 33.41" | 0.0% | Compare |
| 315/50R21 | 21" | 33.40" | 0.0% | Compare |
| 295/75R16 | 16" | 33.42" | 0.0% | Compare |
| 325/60R18 | 18" | 33.35" | −0.2% | Compare |
| 285/60R20 | 20" | 33.46" | +0.2% | Compare |
| 285/55R21 | 21" | 33.34" | −0.2% | Compare |
| 265/55R22 | 22" | 33.48" | +0.2% | Compare |
| 275/80R16 | 16" | 33.32" | −0.2% | Compare |
| 335/55R19 | 19" | 33.51" | +0.3% | Compare |
| 345/35R24 | 24" | 33.51" | +0.3% | Compare |
| 325/45R22 | 22" | 33.52" | +0.3% | Compare |
| 295/40R24 | 24" | 33.29" | −0.3% | Compare |
One size up or down
Compare 275/85R15 with another size
Questions
- How tall is a 275/85R15 tire?
- A 275/85R15 tire is 33.4 inches tall (849 mm), calculated from the size. It is 10.8 inches wide with 9.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 275/85R15 mean?
- 275/85R15 means a tire 275 mm wide, with sidewalls 85% as tall as the tire is wide (234 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 275/85R15 tire make?
- About 604 revolutions per mile, based on a circumference of 104.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 275/85R15 tire?
- Roughly 7.5" to 9.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 33x12.50R15 instead of 275/85R15?
- 33x12.50R15 is −0.41 inches (−1.2%) in overall diameter, so at an indicated 60 mph you would be doing 59.3 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.