255/35R20 tire size in inches
A 255/35R20 tire measures
27.0" tall × 10.0" wide
3.51" sidewall on a 20" wheel. 746 revolutions per mile.
255/35R20 means a tire 255 mm wide, with sidewalls 35% as tall as the tire is wide (89 mm), radial construction (R), for a 20 inch wheel.
255/35R20 specs
| Overall diameter (height) | 27.03 inches (687 mm) |
|---|---|
| Section width | 10.04 inches (255 mm) |
| Sidewall height | 3.51 inches (89 mm) |
| Wheel (rim) diameter | 20 inches |
| Circumference | 84.9 inches (2,157 mm) |
| Revolutions per mile | 746 |
| Revolutions per kilometer | 464 |
| Approximate rim width | 8.5" to 10.0" |
| In inches (flotation style) | 27.0x10.0R20 |
| Aspect ratio | 35% |
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 255/35R20 on a 20" wheel
These 20" sizes are within 3% of 255/35R20's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 355/25R20 | 26.99" | 13.98" | −0.1% | 59.9 mph | Compare |
| 225/40R20 | 27.09" | 8.86" | +0.2% | 60.1 mph | Compare |
| 295/30R20 | 26.97" | 11.61" | −0.2% | 59.9 mph | Compare |
| 305/30R20 | 27.20" | 12.01" | +0.7% | 60.4 mph | Compare |
| 345/25R20 | 26.79" | 13.58" | −0.9% | 59.5 mph | Compare |
| 215/40R20 | 26.77" | 8.46" | −0.9% | 59.4 mph | Compare |
| 245/35R20 | 26.75" | 9.65" | −1.0% | 59.4 mph | Compare |
| 265/35R20 | 27.30" | 10.43" | +1.0% | 60.6 mph | Compare |
| 285/30R20 | 26.73" | 11.22" | −1.1% | 59.3 mph | Compare |
| 235/40R20 | 27.40" | 9.25" | +1.4% | 60.8 mph | Compare |
| 315/30R20 | 27.44" | 12.40" | +1.5% | 60.9 mph | Compare |
| 335/25R20 | 26.59" | 13.19" | −1.6% | 59.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 235/65R15 | 15" | 27.03" | 0.0% | Compare |
| 175/80R16 | 16" | 27.02" | 0.0% | Compare |
| 255/40R19 | 19" | 27.03" | 0.0% | Compare |
| 255/30R21 | 21" | 27.02" | 0.0% | Compare |
| 255/45R18 | 18" | 27.04" | 0.0% | Compare |
| 255/25R22 | 22" | 27.02" | 0.0% | Compare |
| 255/50R17 | 17" | 27.04" | 0.0% | Compare |
| 255/55R16 | 16" | 27.04" | +0.1% | Compare |
| 255/60R15 | 15" | 27.05" | +0.1% | Compare |
| 195/85R14 | 14" | 27.05" | +0.1% | Compare |
| 215/65R16 | 16" | 27.00" | −0.1% | Compare |
| 255/65R14 | 14" | 27.05" | +0.1% | Compare |
One size up or down
- 245/35R20narrower: 26.8" × 9.6"
- 265/35R20wider: 27.3" × 10.4"
- 255/30R20lower profile: 26.0" × 10.0"
- 255/40R20taller sidewall: 28.0" × 10.0"
Compare 255/35R20 with another size
Questions
- How tall is a 255/35R20 tire?
- A 255/35R20 tire is 27.0 inches tall (687 mm), calculated from the size. It is 10.0 inches wide with 3.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 255/35R20 mean?
- 255/35R20 means a tire 255 mm wide, with sidewalls 35% as tall as the tire is wide (89 mm), radial construction (R), for a 20 inch wheel.
- How many revolutions per mile does a 255/35R20 tire make?
- About 746 revolutions per mile, based on a circumference of 84.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 255/35R20 tire?
- Roughly 8.5" to 10.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 355/25R20 instead of 255/35R20?
- 355/25R20 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.