315/30R24 tire size in inches
A 315/30R24 tire measures
31.4" tall × 12.4" wide
3.72" sidewall on a 24" wheel. 641 revolutions per mile.
315/30R24 means a tire 315 mm wide, with sidewalls 30% as tall as the tire is wide (95 mm), radial construction (R), for a 24 inch wheel.
315/30R24 specs
| Overall diameter (height) | 31.44 inches (799 mm) |
|---|---|
| Section width | 12.40 inches (315 mm) |
| Sidewall height | 3.72 inches (95 mm) |
| Wheel (rim) diameter | 24 inches |
| Circumference | 98.8 inches (2,509 mm) |
| Revolutions per mile | 641 |
| Revolutions per kilometer | 399 |
| Approximate rim width | 10.5" to 12.0" |
| In inches (flotation style) | 31.4x12.4R24 |
| Aspect ratio | 30% |
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 315/30R24 on a 24" wheel
These 24" sizes are within 3% of 315/30R24's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 265/35R24 | 31.30" | 10.43" | −0.4% | 59.7 mph | Compare |
| 275/35R24 | 31.58" | 10.83" | +0.4% | 60.3 mph | Compare |
| 305/30R24 | 31.20" | 12.01" | −0.8% | 59.5 mph | Compare |
| 325/30R24 | 31.68" | 12.80" | +0.8% | 60.5 mph | Compare |
| 255/35R24 | 31.03" | 10.04" | −1.3% | 59.2 mph | Compare |
| 285/35R24 | 31.85" | 11.22" | +1.3% | 60.8 mph | Compare |
| 355/25R24 | 30.99" | 13.98" | −1.4% | 59.1 mph | Compare |
| 295/30R24 | 30.97" | 11.61" | −1.5% | 59.1 mph | Compare |
| 335/30R24 | 31.91" | 13.19" | +1.5% | 60.9 mph | Compare |
| 255/40R24 | 32.03" | 10.04" | +1.9% | 61.1 mph | Compare |
| 345/25R24 | 30.79" | 13.58" | −2.1% | 58.8 mph | Compare |
| 295/35R24 | 32.13" | 11.61" | +2.2% | 61.3 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 245/80R16 | 16" | 31.43" | 0.0% | Compare |
| 265/50R21 | 21" | 31.43" | 0.0% | Compare |
| 295/45R21 | 21" | 31.45" | 0.0% | Compare |
| 285/60R18 | 18" | 31.46" | +0.1% | Compare |
| 245/75R17 | 17" | 31.47" | +0.1% | Compare |
| 305/60R17 | 17" | 31.41" | −0.1% | Compare |
| 265/55R20 | 20" | 31.48" | +0.1% | Compare |
| 315/50R19 | 19" | 31.40" | −0.1% | Compare |
| 245/85R15 | 15" | 31.40" | −0.1% | Compare |
| 265/45R22 | 22" | 31.39" | −0.2% | Compare |
| 245/70R18 | 18" | 31.50" | +0.2% | Compare |
| 345/35R22 | 22" | 31.51" | +0.2% | Compare |
One size up or down
- 305/30R24narrower: 31.2" × 12.0"
- 325/30R24wider: 31.7" × 12.8"
- 315/25R24lower profile: 30.2" × 12.4"
- 315/35R24taller sidewall: 32.7" × 12.4"
Compare 315/30R24 with another size
Questions
- How tall is a 315/30R24 tire?
- A 315/30R24 tire is 31.4 inches tall (799 mm), calculated from the size. It is 12.4 inches wide with 3.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 315/30R24 mean?
- 315/30R24 means a tire 315 mm wide, with sidewalls 30% as tall as the tire is wide (95 mm), radial construction (R), for a 24 inch wheel.
- How many revolutions per mile does a 315/30R24 tire make?
- About 641 revolutions per mile, based on a circumference of 98.8 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 315/30R24 tire?
- Roughly 10.5" to 12.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 265/35R24 instead of 315/30R24?
- 265/35R24 is −0.14 inches (−0.4%) in overall diameter, so at an indicated 60 mph you would be doing 59.7 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.