35x12.50R18 tire size in inches
A 35x12.50R18 tire measures
35.0" tall × 12.5" wide
8.50" sidewall on a 18" wheel. 576 revolutions per mile.
35x12.50R18 is a flotation (inch) size: 35 inches tall, 12.50 inches wide, for a 18 inch wheel. The R means radial construction.
35x12.50R18 specs
| Overall diameter (height) | 35.00 inches (889 mm) |
|---|---|
| Section width | 12.50 inches (318 mm) |
| Sidewall height | 8.50 inches (216 mm) |
| Wheel (rim) diameter | 18 inches |
| Circumference | 110.0 inches (2,793 mm) |
| Revolutions per mile | 576 |
| Revolutions per kilometer | 358 |
| Approximate rim width | 8.5" to 11.0" |
| Aspect ratio (equivalent) | 68% |
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 35x12.50R18 on a 18" wheel
These 18" sizes are within 3% of 35x12.50R18's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 335/65R18 | 35.15" | 13.19" | +0.4% | 60.2 mph | Compare |
| 285/75R18 | 34.83" | 11.22" | −0.5% | 59.7 mph | Compare |
| 305/70R18 | 34.81" | 12.01" | −0.5% | 59.7 mph | Compare |
| 315/70R18 | 35.36" | 12.40" | +1.0% | 60.6 mph | Compare |
| 325/65R18 | 34.63" | 12.80" | −1.0% | 59.4 mph | Compare |
| 295/75R18 | 35.42" | 11.61" | +1.2% | 60.7 mph | Compare |
| 295/70R18 | 34.26" | 11.61" | −2.1% | 58.7 mph | Compare |
| 275/75R18 | 34.24" | 10.83" | −2.2% | 58.7 mph | Compare |
| 315/65R18 | 34.12" | 12.40" | −2.5% | 58.5 mph | Compare |
| 325/70R18 | 35.91" | 12.80" | +2.6% | 61.6 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 35x12.50R15 | 15" | 35.00" | 0.0% | Compare |
| 35x12.50R17 | 17" | 35.00" | 0.0% | Compare |
| 35x12.50R20 | 20" | 35.00" | 0.0% | Compare |
| 35x12.50R22 | 22" | 35.00" | 0.0% | Compare |
| 35x12.50R24 | 24" | 35.00" | 0.0% | Compare |
| 305/75R17 | 17" | 35.01" | 0.0% | Compare |
| 355/50R21 | 21" | 34.98" | −0.1% | Compare |
| 345/55R20 | 20" | 34.94" | −0.2% | Compare |
| 285/85R16 | 16" | 35.07" | +0.2% | Compare |
| 325/55R21 | 21" | 35.07" | +0.2% | Compare |
| 295/65R20 | 20" | 35.10" | +0.3% | Compare |
| 315/60R20 | 20" | 34.88" | −0.3% | Compare |
Compare 35x12.50R18 with another size
Questions
- How tall is a 35x12.50R18 tire?
- A 35x12.50R18 tire is 35.0 inches tall (889 mm), calculated from the size. It is 12.5 inches wide with 8.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 35x12.50R18 mean?
- 35x12.50R18 is a flotation (inch) size: 35 inches tall, 12.50 inches wide, for a 18 inch wheel. The R means radial construction.
- How many revolutions per mile does a 35x12.50R18 tire make?
- About 576 revolutions per mile, based on a circumference of 110.0 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 35x12.50R18 tire?
- Roughly 8.5" to 11.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 335/65R18 instead of 35x12.50R18?
- 335/65R18 is +0.15 inches (+0.4%) in overall diameter, so at an indicated 60 mph you would be doing 60.2 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.