205/50R17
A 205/50R17 tire is 25.07 inches tall and 8.1 inches wide, with a 4.04-inch sidewall, mounted on a 17-inch wheel.
Common fitments: Civic Si, Mini Cooper S
Overall diameter
25.07″
637 mm
Sidewall height
4.04″
102.5 mm
Tread width
205 mm
8.1″
Circumference
78.76″
6.6 ft
Revs per mile
804
500 per km
Wheel diameter
17″
aspect ratio 50%
Cross-section
- Overall diameter
- 25.07″
- Sidewall (each side)
- 4.04″
- Wheel
- 17″
205/50R17 in inches and millimeters
Every dimension of a 205/50R17, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 25.07″ | 637 mm |
| Tread width | 8.1″ | 205 mm |
| Sidewall height | 4.04″ | 102.5 mm |
| Wheel diameter | 17″ | 432 mm |
| Circumference | 78.76″ | 2001 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.
205/50R17 compared with other sizes
All 32 practical swaps involving 205/50R17 — diameter change, speedometer impact and a fit verdict for each.
205/50R17 → 175/65R15
175/65R15
Diameter +4.7% · Borderline. Check clearance first
205/50R17 → 185/65R15
185/65R15
Diameter +2.5% · This fits
205/50R17 → 195/60R15
195/60R15
Diameter +3.5% · Borderline. Check clearance first
205/50R17 → 195/65R15
195/65R15
Diameter +0.4% · This fits
205/50R17 → 205/65R15
205/65R15
Diameter −1.7% · This fits
205/50R17 → 185/55R16
185/55R16
Diameter +4.4% · Borderline. Check clearance first
205/50R17 → 195/55R16
195/55R16
Diameter +2.6% · This fits
205/50R17 → 205/55R16
205/55R16
Diameter +0.8% · This fits
205/50R17 → 215/55R16
215/55R16
Diameter −0.9% · This fits
225/45R17 → 205/50R17
225/45R17
Diameter −0.4% · This fits
235/45R17 → 205/50R17
235/45R17
Diameter +1.0% · This fits
215/50R17 → 205/50R17
215/50R17
Diameter +1.6% · This fits
215/45R17 → 205/50R17
215/45R17
Diameter −1.8% · This fits
245/45R17 → 205/50R17
245/45R17
Diameter +2.4% · This fits
225/50R17 → 205/50R17
225/50R17
Diameter +3.1% · Borderline. Check clearance first
205/55R16 → 205/50R17
205/55R16
Diameter −0.8% · This fits
215/55R17 → 205/50R17
215/55R17
Diameter +4.9% · Borderline. Check clearance first
225/40R18 → 205/50R17
225/40R18
Diameter +0.1% · This fits
195/65R15 → 205/50R17
195/65R15
Diameter −0.4% · This fits
205/65R15 → 205/50R17
205/65R15
Diameter +1.7% · This fits
215/55R16 → 205/50R17
215/55R16
Diameter +1.0% · This fits
205/60R16 → 205/50R17
205/60R16
Diameter +2.4% · This fits
235/40R18 → 205/50R17
235/40R18
Diameter +1.3% · This fits
205/50R17 → 215/45R17
215/45R17
Diameter +1.8% · This fits
205/50R17 → 215/50R17
215/50R17
Diameter −1.5% · This fits
205/50R17 → 215/55R17
215/55R17
Diameter −4.7% · Borderline. Check clearance first
205/50R17 → 225/45R17
225/45R17
Diameter +0.4% · This fits
205/50R17 → 225/50R17
225/50R17
Diameter −3.0% · Borderline. Check clearance first
205/50R17 → 235/45R17
235/45R17
Diameter −1.0% · This fits
205/50R17 → 245/45R17
245/45R17
Diameter −2.4% · This fits
205/50R17 → 225/40R18
225/40R18
Diameter −0.1% · This fits
205/50R17 → 235/40R18
235/40R18
Diameter −1.3% · This fits
Common questions
- What is 205/50R17 in inches?
- A 205/50R17 tire is 25.07 inches tall and 8.1 inches wide, with a 4.04-inch sidewall, mounted on a 17-inch wheel. In metric that is 637 mm tall and 205 mm wide. The circumference is 78.76 inches.
- How tall is a 205/50R17 tire?
- 25.07 inches, or 637 mm. That is the overall diameter, wheel included. It turns about 804 times per mile, which is what your speedometer counts.
- What do the numbers in 205/50R17 mean?
- 205 is the tread width in millimeters, 50 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 205 × 50% = 102.5 mm tall.