245/40R19 tire size in inches
A 245/40R19 tire measures
26.7" tall × 9.6" wide
3.86" sidewall on a 19" wheel. 755 revolutions per mile.
245/40R19 means a tire 245 mm wide, with sidewalls 40% as tall as the tire is wide (98 mm), radial construction (R), for a 19 inch wheel.
245/40R19 specs
| Overall diameter (height) | 26.72 inches (679 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 3.86 inches (98 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 83.9 inches (2,132 mm) |
| Revolutions per mile | 755 |
| Revolutions per kilometer | 469 |
| Approximate rim width | 8.0" to 9.5" |
| In inches (flotation style) | 26.7x9.6R19 |
| 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 245/40R19 on a 19" wheel
These 19" sizes are within 3% of 245/40R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 325/30R19 | 26.68" | 12.80" | −0.1% | 59.9 mph | Compare |
| 215/45R19 | 26.62" | 8.46" | −0.4% | 59.8 mph | Compare |
| 275/35R19 | 26.58" | 10.83" | −0.5% | 59.7 mph | Compare |
| 285/35R19 | 26.85" | 11.22" | +0.5% | 60.3 mph | Compare |
| 335/30R19 | 26.91" | 13.19" | +0.7% | 60.4 mph | Compare |
| 225/45R19 | 26.97" | 8.86" | +1.0% | 60.6 mph | Compare |
| 315/30R19 | 26.44" | 12.40" | −1.0% | 59.4 mph | Compare |
| 235/40R19 | 26.40" | 9.25" | −1.2% | 59.3 mph | Compare |
| 255/40R19 | 27.03" | 10.04" | +1.2% | 60.7 mph | Compare |
| 205/50R19 | 27.07" | 8.07" | +1.3% | 60.8 mph | Compare |
| 265/35R19 | 26.30" | 10.43" | −1.5% | 59.1 mph | Compare |
| 295/35R19 | 27.13" | 11.61" | +1.5% | 60.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 175/85R15 | 15" | 26.71" | 0.0% | Compare |
| 205/85R13 | 13" | 26.72" | 0.0% | Compare |
| 285/30R20 | 20" | 26.73" | +0.1% | Compare |
| 215/75R14 | 14" | 26.70" | −0.1% | Compare |
| 225/55R17 | 17" | 26.74" | +0.1% | Compare |
| 275/45R17 | 17" | 26.74" | +0.1% | Compare |
| 195/70R16 | 16" | 26.75" | +0.1% | Compare |
| 205/60R17 | 17" | 26.69" | −0.1% | Compare |
| 245/45R18 | 18" | 26.68" | −0.1% | Compare |
| 245/35R20 | 20" | 26.75" | +0.1% | Compare |
| 315/35R18 | 18" | 26.68" | −0.1% | Compare |
| 215/40R20 | 20" | 26.77" | +0.2% | Compare |
One size up or down
- 235/40R19narrower: 26.4" × 9.3"
- 255/40R19wider: 27.0" × 10.0"
- 245/35R19lower profile: 25.8" × 9.6"
- 245/45R19taller sidewall: 27.7" × 9.6"
Compare 245/40R19 with another size
Questions
- How tall is a 245/40R19 tire?
- A 245/40R19 tire is 26.7 inches tall (679 mm), calculated from the size. It is 9.6 inches wide with 3.9 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/40R19 mean?
- 245/40R19 means a tire 245 mm wide, with sidewalls 40% as tall as the tire is wide (98 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 245/40R19 tire make?
- About 755 revolutions per mile, based on a circumference of 83.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/40R19 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 325/30R19 instead of 245/40R19?
- 325/30R19 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.