315/30R19 tire size in inches
A 315/30R19 tire measures
26.4" tall × 12.4" wide
3.72" sidewall on a 19" wheel. 763 revolutions per mile.
315/30R19 means a tire 315 mm wide, with sidewalls 30% as tall as the tire is wide (95 mm), radial construction (R), for a 19 inch wheel.
315/30R19 specs
| Overall diameter (height) | 26.44 inches (672 mm) |
|---|---|
| Section width | 12.40 inches (315 mm) |
| Sidewall height | 3.72 inches (95 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 83.1 inches (2,110 mm) |
| Revolutions per mile | 763 |
| Revolutions per kilometer | 474 |
| Approximate rim width | 10.5" to 12.0" |
| In inches (flotation style) | 26.4x12.4R19 |
| 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 315/30R19 on a 19" wheel
These 19" sizes are within 3% of 315/30R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 235/40R19 | 26.40" | 9.25" | −0.1% | 59.9 mph | Compare |
| 265/35R19 | 26.30" | 10.43" | −0.5% | 59.7 mph | Compare |
| 275/35R19 | 26.58" | 10.83" | +0.5% | 60.3 mph | Compare |
| 205/45R19 | 26.26" | 8.07" | −0.7% | 59.6 mph | Compare |
| 215/45R19 | 26.62" | 8.46" | +0.7% | 60.4 mph | Compare |
| 305/30R19 | 26.20" | 12.01" | −0.9% | 59.5 mph | Compare |
| 325/30R19 | 26.68" | 12.80" | +0.9% | 60.5 mph | Compare |
| 245/40R19 | 26.72" | 9.65" | +1.0% | 60.6 mph | Compare |
| 225/40R19 | 26.09" | 8.86" | −1.3% | 59.2 mph | Compare |
| 255/35R19 | 26.03" | 10.04" | −1.6% | 59.1 mph | Compare |
| 285/35R19 | 26.85" | 11.22" | +1.6% | 60.9 mph | Compare |
| 355/25R19 | 25.99" | 13.98" | −1.7% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 195/55R18 | 18" | 26.44" | 0.0% | Compare |
| 265/50R16 | 16" | 26.43" | 0.0% | Compare |
| 295/45R16 | 16" | 26.45" | 0.0% | Compare |
| 215/50R18 | 18" | 26.46" | +0.1% | Compare |
| 185/65R17 | 17" | 26.47" | +0.1% | Compare |
| 275/25R21 | 21" | 26.41" | −0.1% | Compare |
| 235/35R20 | 20" | 26.48" | +0.1% | Compare |
| 265/55R15 | 15" | 26.48" | +0.1% | Compare |
| 305/35R18 | 18" | 26.41" | −0.1% | Compare |
| 225/70R14 | 14" | 26.40" | −0.1% | Compare |
| 325/25R20 | 20" | 26.40" | −0.2% | Compare |
| 265/45R17 | 17" | 26.39" | −0.2% | Compare |
One size up or down
- 305/30R19narrower: 26.2" × 12.0"
- 325/30R19wider: 26.7" × 12.8"
- 315/25R19lower profile: 25.2" × 12.4"
- 315/35R19taller sidewall: 27.7" × 12.4"
Compare 315/30R19 with another size
Questions
- How tall is a 315/30R19 tire?
- A 315/30R19 tire is 26.4 inches tall (672 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 315/30R19 mean?
- 315/30R19 means a tire 315 mm wide, with sidewalls 30% as tall as the tire is wide (95 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 315/30R19 tire make?
- About 763 revolutions per mile, based on a circumference of 83.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 315/30R19 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 235/40R19 instead of 315/30R19?
- 235/40R19 is −0.04 inches (−0.1%) in overall diameter, so at an indicated 60 mph you would be doing 59.9 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.