195/35R18 tire size in inches
A 195/35R18 tire measures
23.4" tall × 7.7" wide
2.69" sidewall on a 18" wheel. 863 revolutions per mile.
195/35R18 means a tire 195 mm wide, with sidewalls 35% as tall as the tire is wide (68 mm), radial construction (R), for a 18 inch wheel.
195/35R18 specs
| Overall diameter (height) | 23.37 inches (594 mm) |
|---|---|
| Section width | 7.68 inches (195 mm) |
| Sidewall height | 2.69 inches (68 mm) |
| Wheel (rim) diameter | 18 inches |
| Circumference | 73.4 inches (1,865 mm) |
| Revolutions per mile | 863 |
| Revolutions per kilometer | 536 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 23.4x7.7R18 |
| 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 195/35R18 on a 18" wheel
These 18" sizes are within 3% of 195/35R18's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 205/35R18 | 23.65" | 8.07" | +1.2% | 60.7 mph | Compare |
| 215/35R18 | 23.93" | 8.46" | +2.4% | 61.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 155/85R13 | 13" | 23.37" | 0.0% | Compare |
| 165/80R13 | 13" | 23.39" | +0.1% | Compare |
| 235/40R16 | 16" | 23.40" | +0.1% | Compare |
| 175/75R13 | 13" | 23.33" | −0.2% | Compare |
| 235/45R15 | 15" | 23.33" | −0.2% | Compare |
| 225/25R19 | 19" | 23.43" | +0.2% | Compare |
| 215/55R14 | 14" | 23.31" | −0.3% | Compare |
| 165/65R15 | 15" | 23.44" | +0.3% | Compare |
| 195/55R15 | 15" | 23.44" | +0.3% | Compare |
| 205/40R17 | 17" | 23.46" | +0.4% | Compare |
| 185/50R16 | 16" | 23.28" | −0.4% | Compare |
| 215/50R15 | 15" | 23.46" | +0.4% | Compare |
One size up or down
Compare 195/35R18 with another size
Questions
- How tall is a 195/35R18 tire?
- A 195/35R18 tire is 23.4 inches tall (594 mm), calculated from the size. It is 7.7 inches wide with 2.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 195/35R18 mean?
- 195/35R18 means a tire 195 mm wide, with sidewalls 35% as tall as the tire is wide (68 mm), radial construction (R), for a 18 inch wheel.
- How many revolutions per mile does a 195/35R18 tire make?
- About 863 revolutions per mile, based on a circumference of 73.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 195/35R18 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 205/35R18 instead of 195/35R18?
- 205/35R18 is +0.28 inches (+1.2%) in overall diameter, so at an indicated 60 mph you would be doing 60.7 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.