285/40R24 tire size in inches
A 285/40R24 tire measures
33.0" tall × 11.2" wide
4.49" sidewall on a 24" wheel. 612 revolutions per mile.
285/40R24 means a tire 285 mm wide, with sidewalls 40% as tall as the tire is wide (114 mm), radial construction (R), for a 24 inch wheel.
285/40R24 specs
| Overall diameter (height) | 32.98 inches (838 mm) |
|---|---|
| Section width | 11.22 inches (285 mm) |
| Sidewall height | 4.49 inches (114 mm) |
| Wheel (rim) diameter | 24 inches |
| Circumference | 103.6 inches (2,631 mm) |
| Revolutions per mile | 612 |
| Revolutions per kilometer | 380 |
| Approximate rim width | 9.5" to 11.0" |
| In inches (flotation style) | 33.0x11.2R24 |
| 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 285/40R24 on a 24" wheel
These 24" sizes are within 3% of 285/40R24's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 325/35R24 | 32.96" | 12.80" | −0.1% | 60.0 mph | Compare |
| 335/35R24 | 33.23" | 13.19" | +0.8% | 60.5 mph | Compare |
| 315/35R24 | 32.68" | 12.40" | −0.9% | 59.5 mph | Compare |
| 275/40R24 | 32.66" | 10.83" | −1.0% | 59.4 mph | Compare |
| 295/40R24 | 33.29" | 11.61" | +1.0% | 60.6 mph | Compare |
| 345/35R24 | 33.51" | 13.58" | +1.6% | 61.0 mph | Compare |
| 305/35R24 | 32.41" | 12.01" | −1.7% | 59.0 mph | Compare |
| 355/30R24 | 32.39" | 13.98" | −1.8% | 58.9 mph | Compare |
| 265/40R24 | 32.35" | 10.43" | −1.9% | 58.9 mph | Compare |
| 305/40R24 | 33.61" | 12.01" | +1.9% | 61.1 mph | Compare |
| 355/35R24 | 33.78" | 13.98" | +2.4% | 61.5 mph | Compare |
| 345/30R24 | 32.15" | 13.58" | −2.5% | 58.5 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 355/50R19 | 19" | 32.98" | 0.0% | Compare |
| 275/60R20 | 20" | 32.99" | 0.0% | Compare |
| 285/80R15 | 15" | 32.95" | −0.1% | Compare |
| 33x12.50R15 | 15" | 33.00" | +0.1% | Compare |
| 33x12.50R16 | 16" | 33.00" | +0.1% | Compare |
| 33x12.50R17 | 17" | 33.00" | +0.1% | Compare |
| 33x12.50R18 | 18" | 33.00" | +0.1% | Compare |
| 33x12.50R20 | 20" | 33.00" | +0.1% | Compare |
| 33x12.50R22 | 22" | 33.00" | +0.1% | Compare |
| 305/50R21 | 21" | 33.01" | +0.1% | Compare |
| 295/60R19 | 19" | 32.94" | −0.1% | Compare |
| 275/55R21 | 21" | 32.91" | −0.2% | Compare |
One size up or down
Compare 285/40R24 with another size
Questions
- How tall is a 285/40R24 tire?
- A 285/40R24 tire is 33.0 inches tall (838 mm), calculated from the size. It is 11.2 inches wide with 4.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 285/40R24 mean?
- 285/40R24 means a tire 285 mm wide, with sidewalls 40% as tall as the tire is wide (114 mm), radial construction (R), for a 24 inch wheel.
- How many revolutions per mile does a 285/40R24 tire make?
- About 612 revolutions per mile, based on a circumference of 103.6 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 285/40R24 tire?
- Roughly 9.5" to 11.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 325/35R24 instead of 285/40R24?
- 325/35R24 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.