345/40R24 tire size in inches
A 345/40R24 tire measures
34.9" tall × 13.6" wide
5.43" sidewall on a 24" wheel. 578 revolutions per mile.
345/40R24 means a tire 345 mm wide, with sidewalls 40% as tall as the tire is wide (138 mm), radial construction (R), for a 24 inch wheel.
345/40R24 specs
| Overall diameter (height) | 34.87 inches (886 mm) |
|---|---|
| Section width | 13.58 inches (345 mm) |
| Sidewall height | 5.43 inches (138 mm) |
| Wheel (rim) diameter | 24 inches |
| Circumference | 109.5 inches (2,782 mm) |
| Revolutions per mile | 578 |
| Revolutions per kilometer | 359 |
| Approximate rim width | 11.5" to 13.0" |
| In inches (flotation style) | 34.9x13.6R24 |
| Aspect ratio | 40% |
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 345/40R24 on a 24" wheel
These 24" sizes are within 3% of 345/40R24's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 35x12.50R24 | 35.00" | 12.50" | +0.4% | 60.2 mph | Compare |
| 335/40R24 | 34.55" | 13.19" | −0.9% | 59.5 mph | Compare |
| 355/40R24 | 35.18" | 13.98" | +0.9% | 60.5 mph | Compare |
| 325/40R24 | 34.24" | 12.80" | −1.8% | 58.9 mph | Compare |
| 315/40R24 | 33.92" | 12.40" | −2.7% | 58.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 315/60R20 | 20" | 34.88" | 0.0% | Compare |
| 285/75R18 | 18" | 34.83" | −0.1% | Compare |
| 335/60R19 | 19" | 34.83" | −0.1% | Compare |
| 305/70R18 | 18" | 34.81" | −0.2% | Compare |
| 325/50R22 | 22" | 34.80" | −0.2% | Compare |
| 345/55R20 | 20" | 34.94" | +0.2% | Compare |
| 295/55R22 | 22" | 34.78" | −0.3% | Compare |
| 355/50R21 | 21" | 34.98" | +0.3% | Compare |
| 35x12.50R15 | 15" | 35.00" | +0.4% | Compare |
| 35x12.50R17 | 17" | 35.00" | +0.4% | Compare |
| 35x12.50R18 | 18" | 35.00" | +0.4% | Compare |
| 35x12.50R20 | 20" | 35.00" | +0.4% | Compare |
One size up or down
Compare 345/40R24 with another size
Questions
- How tall is a 345/40R24 tire?
- A 345/40R24 tire is 34.9 inches tall (886 mm), calculated from the size. It is 13.6 inches wide with 5.4 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 345/40R24 mean?
- 345/40R24 means a tire 345 mm wide, with sidewalls 40% as tall as the tire is wide (138 mm), radial construction (R), for a 24 inch wheel.
- How many revolutions per mile does a 345/40R24 tire make?
- About 578 revolutions per mile, based on a circumference of 109.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 345/40R24 tire?
- Roughly 11.5" to 13.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 35x12.50R24 instead of 345/40R24?
- 35x12.50R24 is +0.13 inches (+0.4%) in overall diameter, so at an indicated 60 mph you would be doing 60.2 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.