305/30R19 tire size in inches
A 305/30R19 tire measures
26.2" tall × 12.0" wide
3.60" sidewall on a 19" wheel. 770 revolutions per mile.
305/30R19 means a tire 305 mm wide, with sidewalls 30% as tall as the tire is wide (92 mm), radial construction (R), for a 19 inch wheel.
305/30R19 specs
| Overall diameter (height) | 26.20 inches (666 mm) |
|---|---|
| Section width | 12.01 inches (305 mm) |
| Sidewall height | 3.60 inches (92 mm) |
| Wheel (rim) diameter | 19 inches |
| Circumference | 82.3 inches (2,091 mm) |
| Revolutions per mile | 770 |
| Revolutions per kilometer | 478 |
| Approximate rim width | 10.0" to 11.5" |
| In inches (flotation style) | 26.2x12.0R19 |
| 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 305/30R19 on a 19" wheel
These 19" sizes are within 3% of 305/30R19's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 205/45R19 | 26.26" | 8.07" | +0.2% | 60.1 mph | Compare |
| 265/35R19 | 26.30" | 10.43" | +0.4% | 60.2 mph | Compare |
| 225/40R19 | 26.09" | 8.86" | −0.5% | 59.7 mph | Compare |
| 255/35R19 | 26.03" | 10.04" | −0.7% | 59.6 mph | Compare |
| 235/40R19 | 26.40" | 9.25" | +0.8% | 60.5 mph | Compare |
| 355/25R19 | 25.99" | 13.98" | −0.8% | 59.5 mph | Compare |
| 295/30R19 | 25.97" | 11.61" | −0.9% | 59.5 mph | Compare |
| 315/30R19 | 26.44" | 12.40" | +0.9% | 60.5 mph | Compare |
| 275/35R19 | 26.58" | 10.83" | +1.4% | 60.9 mph | Compare |
| 345/25R19 | 25.79" | 13.58" | −1.6% | 59.1 mph | Compare |
| 215/45R19 | 26.62" | 8.46" | +1.6% | 60.9 mph | Compare |
| 215/40R19 | 25.77" | 8.46" | −1.7% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/35R20 | 20" | 26.20" | 0.0% | Compare |
| 315/25R20 | 20" | 26.20" | 0.0% | Compare |
| 185/70R16 | 16" | 26.20" | 0.0% | Compare |
| 195/60R17 | 17" | 26.21" | 0.0% | Compare |
| 265/25R21 | 21" | 26.22" | 0.0% | Compare |
| 285/50R15 | 15" | 26.22" | +0.1% | Compare |
| 235/55R16 | 16" | 26.18" | −0.1% | Compare |
| 215/60R16 | 16" | 26.16" | −0.2% | Compare |
| 235/50R17 | 17" | 26.25" | +0.2% | Compare |
| 265/30R20 | 20" | 26.26" | +0.2% | Compare |
| 295/35R18 | 18" | 26.13" | −0.3% | Compare |
| 195/80R14 | 14" | 26.28" | +0.3% | Compare |
One size up or down
- 295/30R19narrower: 26.0" × 11.6"
- 315/30R19wider: 26.4" × 12.4"
- 305/25R19lower profile: 25.0" × 12.0"
- 305/35R19taller sidewall: 27.4" × 12.0"
Compare 305/30R19 with another size
Questions
- How tall is a 305/30R19 tire?
- A 305/30R19 tire is 26.2 inches tall (666 mm), calculated from the size. It is 12.0 inches wide with 3.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 305/30R19 mean?
- 305/30R19 means a tire 305 mm wide, with sidewalls 30% as tall as the tire is wide (92 mm), radial construction (R), for a 19 inch wheel.
- How many revolutions per mile does a 305/30R19 tire make?
- About 770 revolutions per mile, based on a circumference of 82.3 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 305/30R19 tire?
- Roughly 10.0" to 11.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 205/45R19 instead of 305/30R19?
- 205/45R19 is +0.06 inches (+0.2%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.