225/55R17
A 225/55R17 tire is 26.74 inches tall and 8.9 inches wide, with a 4.87-inch sidewall, mounted on a 17-inch wheel.
Common fitments: Outback, Forester, Escape
Overall diameter
26.74″
679 mm
Sidewall height
4.87″
123.8 mm
Tread width
225 mm
8.9″
Circumference
84.02″
7.0 ft
Revs per mile
754
469 per km
Wheel diameter
17″
aspect ratio 55%
Cross-section
- Overall diameter
- 26.74″
- Sidewall (each side)
- 4.87″
- Wheel
- 17″
225/55R17 in inches and millimeters
Every dimension of a 225/55R17, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 26.74″ | 679 mm |
| Tread width | 8.9″ | 225 mm |
| Sidewall height | 4.87″ | 123.8 mm |
| Wheel diameter | 17″ | 432 mm |
| Circumference | 84.02″ | 2134 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.
225/55R17 compared with other sizes
All 32 practical swaps involving 225/55R17 — diameter change, speedometer impact and a fit verdict for each.
225/55R17 → 215/65R16
215/65R16
Diameter −1.0% · This fits
225/55R17 → 225/60R16
225/60R16
Diameter +0.4% · This fits
225/55R17 → 235/60R16
235/60R16
Diameter −1.3% · This fits
225/55R17 → 215/50R17
215/50R17
Diameter +5.0% · Too big a jump
225/55R17 → 215/55R17
215/55R17
Diameter +1.6% · This fits
225/55R17 → 225/50R17
225/50R17
Diameter +3.4% · Borderline. Check clearance first
215/60R17 → 225/55R17
215/60R17
Diameter +1.5% · This fits
215/55R17 → 225/55R17
215/55R17
Diameter −1.6% · This fits
235/55R17 → 225/55R17
235/55R17
Diameter +1.6% · This fits
225/60R17 → 225/55R17
225/60R17
Diameter +3.3% · Borderline. Check clearance first
225/50R17 → 225/55R17
225/50R17
Diameter −3.3% · Borderline. Check clearance first
245/45R17 → 225/55R17
245/45R17
Diameter −4.0% · Borderline. Check clearance first
225/60R16 → 225/55R17
225/60R16
Diameter −0.4% · This fits
215/65R17 → 225/55R17
215/65R17
Diameter +4.7% · Borderline. Check clearance first
215/50R17 → 225/55R17
215/50R17
Diameter −4.8% · Borderline. Check clearance first
235/60R17 → 225/55R17
235/60R17
Diameter +5.1% · Too big a jump
245/40R19 → 225/55R17
245/40R19
Diameter −0.1% · This fits
245/45R18 → 225/55R17
245/45R18
Diameter −0.2% · This fits
235/45R17 → 225/55R17
235/45R17
Diameter −5.3% · Too big a jump
205/65R16 → 225/55R17
205/65R16
Diameter −0.9% · This fits
225/55R17 → 235/55R17
235/55R17
Diameter −1.6% · This fits
225/55R17 → 245/45R17
245/45R17
Diameter +4.1% · Borderline. Check clearance first
225/55R17 → 245/45R18
245/45R18
Diameter +0.2% · This fits
225/55R17 → 235/40R19
235/40R19
Diameter +1.3% · This fits
225/55R17 → 245/40R19
245/40R19
Diameter +0.1% · This fits
225/55R17 → 205/65R16
205/65R16
Diameter +1.0% · This fits
225/55R17 → 225/65R16
225/65R16
Diameter −2.8% · This fits
225/55R17 → 215/60R17
215/60R17
Diameter −1.5% · This fits
225/55R17 → 215/65R17
215/65R17
Diameter −4.5% · Borderline. Check clearance first
225/55R17 → 225/60R17
225/60R17
Diameter −3.2% · Borderline. Check clearance first
225/55R17 → 235/60R17
235/60R17
Diameter −4.8% · Borderline. Check clearance first
225/55R17 → 225/45R17
225/45R17
Diameter +7.1% · Too big a jump
Common questions
- What is 225/55R17 in inches?
- A 225/55R17 tire is 26.74 inches tall and 8.9 inches wide, with a 4.87-inch sidewall, mounted on a 17-inch wheel. In metric that is 679 mm tall and 225 mm wide. The circumference is 84.02 inches.
- How tall is a 225/55R17 tire?
- 26.74 inches, or 679 mm. That is the overall diameter, wheel included. It turns about 754 times per mile, which is what your speedometer counts.
- What do the numbers in 225/55R17 mean?
- 225 is the tread width in millimeters, 55 is the aspect ratio — the sidewall height as a percentage of the tread width — and 17 is the wheel diameter in inches. So the sidewall is 225 × 55% = 123.8 mm tall.