245/60R20 tire size in inches
A 245/60R20 tire measures
31.6" tall × 9.6" wide
5.79" sidewall on a 20" wheel. 639 revolutions per mile.
245/60R20 means a tire 245 mm wide, with sidewalls 60% as tall as the tire is wide (147 mm), radial construction (R), for a 20 inch wheel.
245/60R20 specs
| Overall diameter (height) | 31.57 inches (802 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 5.79 inches (147 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 99.2 inches (2,520 mm) |
| Revolutions per mile | 639 |
| Revolutions per kilometer | 397 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 31.6x9.6R20 |
| Aspect ratio | 60% |
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 245/60R20 on a 20" wheel
These 20" sizes are within 3% of 245/60R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 295/50R20 | 31.61" | 11.61" | +0.1% | 60.1 mph | Compare |
| 225/65R20 | 31.52" | 8.86" | −0.2% | 59.9 mph | Compare |
| 325/45R20 | 31.52" | 12.80" | −0.2% | 59.9 mph | Compare |
| 265/55R20 | 31.48" | 10.43" | −0.3% | 59.8 mph | Compare |
| 335/45R20 | 31.87" | 13.19" | +0.9% | 60.6 mph | Compare |
| 275/55R20 | 31.91" | 10.83" | +1.1% | 60.6 mph | Compare |
| 285/50R20 | 31.22" | 11.22" | −1.1% | 59.3 mph | Compare |
| 355/40R20 | 31.18" | 13.98" | −1.2% | 59.3 mph | Compare |
| 315/45R20 | 31.16" | 12.40" | −1.3% | 59.2 mph | Compare |
| 305/50R20 | 32.01" | 12.01" | +1.4% | 60.8 mph | Compare |
| 235/65R20 | 32.03" | 9.25" | +1.4% | 60.9 mph | Compare |
| 235/60R20 | 31.10" | 9.25" | −1.5% | 59.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 275/35R24 | 24" | 31.58" | 0.0% | Compare |
| 355/45R19 | 19" | 31.58" | 0.0% | Compare |
| 265/65R18 | 18" | 31.56" | 0.0% | Compare |
| 285/65R17 | 17" | 31.59" | 0.0% | Compare |
| 335/40R21 | 21" | 31.55" | −0.1% | Compare |
| 265/70R17 | 17" | 31.61" | +0.1% | Compare |
| 305/40R22 | 22" | 31.61" | +0.1% | Compare |
| 245/55R21 | 21" | 31.61" | +0.1% | Compare |
| 245/65R19 | 19" | 31.54" | −0.1% | Compare |
| 265/60R19 | 19" | 31.52" | −0.2% | Compare |
| 315/55R18 | 18" | 31.64" | +0.2% | Compare |
| 345/35R22 | 22" | 31.51" | −0.2% | Compare |
One size up or down
- 235/60R20narrower: 31.1" × 9.3"
- 255/60R20wider: 32.0" × 10.0"
- 245/55R20lower profile: 30.6" × 9.6"
- 245/65R20taller sidewall: 32.5" × 9.6"
Compare 245/60R20 with another size
Questions
- How tall is a 245/60R20 tire?
- A 245/60R20 tire is 31.6 inches tall (802 mm), calculated from the size. It is 9.6 inches wide with 5.8 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/60R20 mean?
- 245/60R20 means a tire 245 mm wide, with sidewalls 60% as tall as the tire is wide (147 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 245/60R20 tire make?
- About 639 revolutions per mile, based on a circumference of 99.2 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/60R20 tire?
- Roughly 6.5" to 8.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 295/50R20 instead of 245/60R20?
- 295/50R20 is +0.04 inches (+0.1%) 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.