245/85R13 tire size in inches
A 245/85R13 tire measures
29.4" tall × 9.6" wide
8.20" sidewall on a 13" wheel. 686 revolutions per mile.
245/85R13 means a tire 245 mm wide, with sidewalls 85% as tall as the tire is wide (208 mm), radial construction (R), for a 13 inch wheel.
245/85R13 specs
| Overall diameter (height) | 29.40 inches (747 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 8.20 inches (208 mm) |
| Wheel (rim) diameter | 13 inches |
| Circumference | 92.4 inches (2,346 mm) |
| Revolutions per mile | 686 |
| Revolutions per kilometer | 426 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 29.4x9.6R13 |
| 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 245/85R13 on a 13" wheel
These 13" sizes are within 3% of 245/85R13's overall diameter, the range most tire shops treat as interchangeable.
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/70R17 | 17" | 29.40" | 0.0% | Compare |
| 235/40R22 | 22" | 29.40" | 0.0% | Compare |
| 315/50R17 | 17" | 29.40" | 0.0% | Compare |
| 305/35R21 | 21" | 29.41" | 0.0% | Compare |
| 215/85R15 | 15" | 29.39" | 0.0% | Compare |
| 265/45R20 | 20" | 29.39" | 0.0% | Compare |
| 355/30R21 | 21" | 29.39" | 0.0% | Compare |
| 275/25R24 | 24" | 29.41" | +0.1% | Compare |
| 245/80R14 | 14" | 29.43" | +0.1% | Compare |
| 265/50R19 | 19" | 29.43" | +0.1% | Compare |
| 315/30R22 | 22" | 29.44" | +0.1% | Compare |
| 265/40R21 | 21" | 29.35" | −0.2% | Compare |
One size up or down
Compare 245/85R13 with another size
Questions
- How tall is a 245/85R13 tire?
- A 245/85R13 tire is 29.4 inches tall (747 mm), calculated from the size. It is 9.6 inches wide with 8.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/85R13 mean?
- 245/85R13 means a tire 245 mm wide, with sidewalls 85% as tall as the tire is wide (208 mm), radial construction (R), for a 13 inch wheel.
- How many revolutions per mile does a 245/85R13 tire make?
- About 686 revolutions per mile, based on a circumference of 92.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/85R13 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 235/85R13 instead of 245/85R13?
- 235/85R13 is −0.67 inches (−2.3%) in overall diameter, so at an indicated 60 mph you would be doing 58.6 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.