345/45R19 tire size in inches
A 345/45R19 tire measures
31.2" tall × 13.6" wide
6.11" sidewall on a 19" wheel. 646 revolutions per mile.
345/45R19 means a tire 345 mm wide, with sidewalls 45% as tall as the tire is wide (155 mm), radial construction (R), for a 19 inch wheel.
345/45R19 specs
| Overall diameter (height) | 31.22 inches (793 mm) |
|---|---|
| Section width | 13.58 inches (345 mm) |
| Sidewall height | 6.11 inches (155 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 98.1 inches (2,492 mm) |
| Revolutions per mile | 646 |
| Revolutions per kilometer | 401 |
| Approximate rim width | 11.5" to 13.0" |
| In inches (flotation style) | 31.2x13.6R19 |
| Aspect ratio | 45% |
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 345/45R19 on a 19" wheel
These 19" sizes are within 3% of 345/45R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 285/55R19 | 31.34" | 11.22" | +0.4% | 60.2 mph | Compare |
| 255/60R19 | 31.05" | 10.04" | −0.6% | 59.7 mph | Compare |
| 315/50R19 | 31.40" | 12.40" | +0.6% | 60.3 mph | Compare |
| 235/65R19 | 31.03" | 9.25" | −0.6% | 59.6 mph | Compare |
| 305/50R19 | 31.01" | 12.01" | −0.7% | 59.6 mph | Compare |
| 265/60R19 | 31.52" | 10.43" | +0.9% | 60.6 mph | Compare |
| 245/65R19 | 31.54" | 9.65" | +1.0% | 60.6 mph | Compare |
| 275/55R19 | 30.91" | 10.83" | −1.0% | 59.4 mph | Compare |
| 335/45R19 | 30.87" | 13.19" | −1.1% | 59.3 mph | Compare |
| 355/45R19 | 31.58" | 13.98" | +1.1% | 60.7 mph | Compare |
| 295/55R19 | 31.78" | 11.61" | +1.8% | 61.1 mph | Compare |
| 325/50R19 | 31.80" | 12.80" | +1.8% | 61.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 285/50R20 | 20" | 31.22" | 0.0% | Compare |
| 335/35R22 | 22" | 31.23" | 0.0% | Compare |
| 325/40R21 | 21" | 31.24" | 0.0% | Compare |
| 305/55R18 | 18" | 31.21" | −0.1% | Compare |
| 275/75R15 | 15" | 31.24" | +0.1% | Compare |
| 305/30R24 | 24" | 31.20" | −0.1% | Compare |
| 235/50R22 | 22" | 31.25" | +0.1% | Compare |
| 335/50R18 | 18" | 31.19" | −0.1% | Compare |
| 355/40R20 | 20" | 31.18" | −0.1% | Compare |
| 235/55R21 | 21" | 31.18" | −0.2% | Compare |
| 225/75R18 | 18" | 31.29" | +0.2% | Compare |
| 315/45R20 | 20" | 31.16" | −0.2% | Compare |
One size up or down
- 335/45R19narrower: 30.9" × 13.2"
- 355/45R19wider: 31.6" × 14.0"
- 345/40R19lower profile: 29.9" × 13.6"
- 345/50R19taller sidewall: 32.6" × 13.6"
Compare 345/45R19 with another size
Questions
- How tall is a 345/45R19 tire?
- A 345/45R19 tire is 31.2 inches tall (793 mm), calculated from the size. It is 13.6 inches wide with 6.1 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 345/45R19 mean?
- 345/45R19 means a tire 345 mm wide, with sidewalls 45% as tall as the tire is wide (155 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 345/45R19 tire make?
- About 646 revolutions per mile, based on a circumference of 98.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 345/45R19 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 285/55R19 instead of 345/45R19?
- 285/55R19 is +0.12 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.