235/60R18
A 235/60R18 tire is 29.10 inches tall and 9.3 inches wide, with a 5.55-inch sidewall, mounted on a 18-inch wheel.
Common fitments: RAV4, CR-V, Highlander
Overall diameter
29.10″
739 mm
Sidewall height
5.55″
141.0 mm
Tread width
235 mm
9.3″
Circumference
91.43″
7.6 ft
Revs per mile
693
431 per km
Wheel diameter
18″
aspect ratio 60%
Cross-section
- Overall diameter
- 29.10″
- Sidewall (each side)
- 5.55″
- Wheel
- 18″
235/60R18 in inches and millimeters
Every dimension of a 235/60R18, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 29.10″ | 739 mm |
| Tread width | 9.3″ | 235 mm |
| Sidewall height | 5.55″ | 141.0 mm |
| Wheel diameter | 18″ | 457 mm |
| Circumference | 91.43″ | 2322 mm |
Nominal dimensions from the size code. A real tire varies by a few millimeters between manufacturers, and a loaded tire sits slightly shorter than its free diameter.
235/60R18 compared with other sizes
All 33 practical swaps involving 235/60R18 — diameter change, speedometer impact and a fit verdict for each.
255/55R18 → 235/60R18
255/55R18
Diameter −0.2% · This fits
225/60R18 → 235/60R18
225/60R18
Diameter −1.6% · This fits
245/60R18 → 235/60R18
245/60R18
Diameter +1.6% · This fits
235/55R18 → 235/60R18
235/55R18
Diameter −3.2% · Borderline. Check clearance first
235/65R18 → 235/60R18
235/65R18
Diameter +3.2% · Borderline. Check clearance first
255/60R18 → 235/60R18
255/60R18
Diameter +3.2% · Borderline. Check clearance first
235/65R17 → 235/60R18
235/65R17
Diameter −0.3% · This fits
235/55R19 → 235/60R18
235/55R19
Diameter +0.3% · This fits
235/70R16 → 235/60R18
235/70R16
Diameter −0.5% · This fits
265/60R18 → 235/60R18
265/60R18
Diameter +4.9% · Borderline. Check clearance first
245/65R18 → 235/60R18
245/65R18
Diameter +4.9% · Borderline. Check clearance first
255/50R19 → 235/60R18
255/50R19
Diameter −0.2% · This fits
255/45R20 → 235/60R18
255/45R20
Diameter −0.2% · This fits
225/75R16 → 235/60R18
225/75R16
Diameter +0.6% · This fits
235/60R18 → 255/55R18
255/55R18
Diameter +0.2% · This fits
235/60R18 → 265/60R18
265/60R18
Diameter −4.6% · Borderline. Check clearance first
235/60R18 → 255/45R20
255/45R20
Diameter +0.2% · This fits
235/60R18 → 225/75R16
225/75R16
Diameter −0.6% · This fits
235/60R18 → 235/70R16
235/70R16
Diameter +0.5% · This fits
235/60R18 → 245/70R16
245/70R16
Diameter −1.4% · This fits
235/60R18 → 235/65R17
235/65R17
Diameter +0.3% · This fits
235/60R18 → 225/60R18
225/60R18
Diameter +1.7% · This fits
235/60R18 → 235/55R18
235/55R18
Diameter +3.3% · Borderline. Check clearance first
235/60R18 → 235/65R18
235/65R18
Diameter −3.1% · Borderline. Check clearance first
235/60R18 → 245/60R18
245/60R18
Diameter −1.6% · This fits
235/60R18 → 245/65R18
245/65R18
Diameter −4.7% · Borderline. Check clearance first
235/60R18 → 255/60R18
255/60R18
Diameter −3.1% · Borderline. Check clearance first
235/60R18 → 235/55R19
235/55R19
Diameter −0.3% · This fits
235/60R18 → 255/50R19
255/50R19
Diameter +0.2% · This fits
235/60R18 → 245/45R20
245/45R20
Diameter +1.5% · This fits
235/60R18 → 265/45R20
265/45R20
Diameter −1.0% · This fits
235/60R18 → 275/40R20
275/40R20
Diameter +1.5% · This fits
235/60R18 → 235/45R18
235/45R18
Diameter +10.5% · Too big a jump
Common questions
- What is 235/60R18 in inches?
- A 235/60R18 tire is 29.10 inches tall and 9.3 inches wide, with a 5.55-inch sidewall, mounted on a 18-inch wheel. In metric that is 739 mm tall and 235 mm wide. The circumference is 91.43 inches.
- How tall is a 235/60R18 tire?
- 29.10 inches, or 739 mm. That is the overall diameter, wheel included. It turns about 693 times per mile, which is what your speedometer counts.
- What do the numbers in 235/60R18 mean?
- 235 is the tread width in millimeters, 60 is the aspect ratio — the sidewall height as a percentage of the tread width — and 18 is the wheel diameter in inches. So the sidewall is 235 × 60% = 141.0 mm tall.