325/40R19 tire size in inches
A 325/40R19 tire measures
29.2" tall × 12.8" wide
5.12" sidewall on a 19" wheel. 690 revolutions per mile.
325/40R19 means a tire 325 mm wide, with sidewalls 40% as tall as the tire is wide (130 mm), radial construction (R), for a 19 inch wheel.
325/40R19 specs
| Overall diameter (height) | 29.24 inches (743 mm) |
|---|---|
| Section width | 12.80 inches (325 mm) |
| Sidewall height | 5.12 inches (130 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 91.8 inches (2,333 mm) |
| Revolutions per mile | 690 |
| Revolutions per kilometer | 429 |
| Approximate rim width | 10.5" to 12.0" |
| In inches (flotation style) | 29.2x12.8R19 |
| 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 325/40R19 on a 19" wheel
These 19" sizes are within 3% of 325/40R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 235/55R19 | 29.18" | 9.25" | −0.2% | 59.9 mph | Compare |
| 215/60R19 | 29.16" | 8.46" | −0.3% | 59.8 mph | Compare |
| 285/45R19 | 29.10" | 11.22" | −0.5% | 59.7 mph | Compare |
| 265/50R19 | 29.43" | 10.43" | +0.7% | 60.4 mph | Compare |
| 255/50R19 | 29.04" | 10.04" | −0.7% | 59.6 mph | Compare |
| 295/45R19 | 29.45" | 11.61" | +0.7% | 60.4 mph | Compare |
| 205/65R19 | 29.49" | 8.07" | +0.9% | 60.5 mph | Compare |
| 335/40R19 | 29.55" | 13.19" | +1.1% | 60.6 mph | Compare |
| 315/40R19 | 28.92" | 12.40" | −1.1% | 59.4 mph | Compare |
| 245/55R19 | 29.61" | 9.65" | +1.3% | 60.8 mph | Compare |
| 225/60R19 | 29.63" | 8.86" | +1.3% | 60.8 mph | Compare |
| 355/35R19 | 28.78" | 13.98" | −1.5% | 59.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 335/35R20 | 20" | 29.23" | 0.0% | Compare |
| 235/50R20 | 20" | 29.25" | +0.1% | Compare |
| 285/50R18 | 18" | 29.22" | −0.1% | Compare |
| 265/25R24 | 24" | 29.22" | −0.1% | Compare |
| 305/30R22 | 22" | 29.20" | −0.1% | Compare |
| 225/75R16 | 16" | 29.29" | +0.2% | Compare |
| 295/40R20 | 20" | 29.29" | +0.2% | Compare |
| 205/70R18 | 18" | 29.30" | +0.2% | Compare |
| 225/80R15 | 15" | 29.17" | −0.2% | Compare |
| 265/35R22 | 22" | 29.30" | +0.2% | Compare |
| 215/55R20 | 20" | 29.31" | +0.3% | Compare |
| 315/45R18 | 18" | 29.16" | −0.3% | Compare |
One size up or down
- 315/40R19narrower: 28.9" × 12.4"
- 335/40R19wider: 29.6" × 13.2"
- 325/35R19lower profile: 28.0" × 12.8"
- 325/45R19taller sidewall: 30.5" × 12.8"
Compare 325/40R19 with another size
Questions
- How tall is a 325/40R19 tire?
- A 325/40R19 tire is 29.2 inches tall (743 mm), calculated from the size. It is 12.8 inches wide with 5.1 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 325/40R19 mean?
- 325/40R19 means a tire 325 mm wide, with sidewalls 40% as tall as the tire is wide (130 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 325/40R19 tire make?
- About 690 revolutions per mile, based on a circumference of 91.8 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 325/40R19 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 235/55R19 instead of 325/40R19?
- 235/55R19 is −0.06 inches (−0.2%) 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.