245/45R19 tire size in inches
A 245/45R19 tire measures
27.7" tall × 9.6" wide
4.34" sidewall on a 19" wheel. 729 revolutions per mile.
245/45R19 means a tire 245 mm wide, with sidewalls 45% as tall as the tire is wide (110 mm), radial construction (R), for a 19 inch wheel.
245/45R19 specs
| Overall diameter (height) | 27.68 inches (703 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 4.34 inches (110 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 87.0 inches (2,209 mm) |
| Revolutions per mile | 729 |
| Revolutions per kilometer | 453 |
| Approximate rim width | 8.0" to 9.5" |
| In inches (flotation style) | 27.7x9.6R19 |
| 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 245/45R19 on a 19" wheel
These 19" sizes are within 3% of 245/45R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 315/35R19 | 27.68" | 12.40" | 0.0% | 60.0 mph | Compare |
| 275/40R19 | 27.66" | 10.83" | −0.1% | 60.0 mph | Compare |
| 225/50R19 | 27.86" | 8.86" | +0.6% | 60.4 mph | Compare |
| 205/55R19 | 27.88" | 8.07" | +0.7% | 60.4 mph | Compare |
| 215/50R19 | 27.46" | 8.46" | −0.8% | 59.5 mph | Compare |
| 305/35R19 | 27.41" | 12.01" | −1.0% | 59.4 mph | Compare |
| 325/35R19 | 27.96" | 12.80" | +1.0% | 60.6 mph | Compare |
| 285/40R19 | 27.98" | 11.22" | +1.1% | 60.6 mph | Compare |
| 355/30R19 | 27.39" | 13.98" | −1.1% | 59.4 mph | Compare |
| 265/40R19 | 27.35" | 10.43" | −1.2% | 59.3 mph | Compare |
| 255/45R19 | 28.04" | 10.04" | +1.3% | 60.8 mph | Compare |
| 235/45R19 | 27.33" | 9.25" | −1.3% | 59.2 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 205/60R18 | 18" | 27.69" | 0.0% | Compare |
| 325/30R20 | 20" | 27.68" | 0.0% | Compare |
| 215/75R15 | 15" | 27.70" | +0.1% | Compare |
| 185/80R16 | 16" | 27.65" | −0.1% | Compare |
| 175/85R16 | 16" | 27.71" | +0.1% | Compare |
| 245/50R18 | 18" | 27.65" | −0.1% | Compare |
| 245/40R20 | 20" | 27.72" | +0.1% | Compare |
| 205/85R14 | 14" | 27.72" | +0.1% | Compare |
| 285/30R21 | 21" | 27.73" | +0.2% | Compare |
| 225/60R17 | 17" | 27.63" | −0.2% | Compare |
| 215/45R20 | 20" | 27.62" | −0.2% | Compare |
| 225/55R18 | 18" | 27.74" | +0.2% | Compare |
One size up or down
- 235/45R19narrower: 27.3" × 9.3"
- 255/45R19wider: 28.0" × 10.0"
- 245/40R19lower profile: 26.7" × 9.6"
- 245/50R19taller sidewall: 28.6" × 9.6"
Compare 245/45R19 with another size
Questions
- How tall is a 245/45R19 tire?
- A 245/45R19 tire is 27.7 inches tall (703 mm), calculated from the size. It is 9.6 inches wide with 4.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/45R19 mean?
- 245/45R19 means a tire 245 mm wide, with sidewalls 45% as tall as the tire is wide (110 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 245/45R19 tire make?
- About 729 revolutions per mile, based on a circumference of 87.0 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/45R19 tire?
- Roughly 8.0" to 9.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 315/35R19 instead of 245/45R19?
- 315/35R19 is 0.00 inches (0.0%) 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.