265/50R20
A 265/50R20 tire is 30.43 inches tall and 10.4 inches wide, with a 5.22-inch sidewall, mounted on a 20-inch wheel.
Common fitments: Ram 1500, Durango SRT
Overall diameter
30.43″
773 mm
Sidewall height
5.22″
132.5 mm
Tread width
265 mm
10.4″
Circumference
95.61″
8.0 ft
Revs per mile
663
412 per km
Wheel diameter
20″
aspect ratio 50%
Cross-section
- Overall diameter
- 30.43″
- Sidewall (each side)
- 5.22″
- Wheel
- 20″
265/50R20 in inches and millimeters
Every dimension of a 265/50R20, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 30.43″ | 773 mm |
| Tread width | 10.4″ | 265 mm |
| Sidewall height | 5.22″ | 132.5 mm |
| Wheel diameter | 20″ | 508 mm |
| Circumference | 95.61″ | 2428 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.
265/50R20 compared with other sizes
All 32 practical swaps involving 265/50R20 — diameter change, speedometer impact and a fit verdict for each.
265/50R20 → 265/60R18
265/60R18
Diameter −0.3% · This fits
265/50R20 → 255/45R20
255/45R20
Diameter +4.8% · Borderline. Check clearance first
265/50R20 → 275/45R20
275/45R20
Diameter +2.3% · This fits
265/50R20 → 275/55R20
275/55R20
Diameter −4.6% · Borderline. Check clearance first
265/50R20 → 265/55R19
265/55R19
Diameter −0.1% · This fits
265/50R20 → 245/50R20
245/50R20
Diameter +2.7% · This fits
265/50R20 → 255/50R20
255/50R20
Diameter +1.3% · This fits
265/50R20 → 255/55R20
255/55R20
Diameter −2.0% · This fits
265/50R20 → 265/45R20
265/45R20
Diameter +3.5% · Borderline. Check clearance first
255/50R20 → 265/50R20
255/50R20
Diameter −1.3% · This fits
255/55R20 → 265/50R20
255/55R20
Diameter +2.0% · This fits
265/55R20 → 265/50R20
265/55R20
Diameter +3.4% · Borderline. Check clearance first
265/45R20 → 265/50R20
265/45R20
Diameter −3.4% · Borderline. Check clearance first
275/45R20 → 265/50R20
275/45R20
Diameter −2.3% · This fits
245/50R20 → 265/50R20
245/50R20
Diameter −2.6% · This fits
285/50R20 → 265/50R20
285/50R20
Diameter +2.6% · This fits
265/55R19 → 265/50R20
265/55R19
Diameter +0.1% · This fits
265/45R21 → 265/50R20
265/45R21
Diameter −0.1% · This fits
265/60R18 → 265/50R20
265/60R18
Diameter +0.3% · This fits
255/45R20 → 265/50R20
255/45R20
Diameter −4.6% · Borderline. Check clearance first
275/55R20 → 265/50R20
275/55R20
Diameter +4.9% · Borderline. Check clearance first
305/50R20 → 265/50R20
305/50R20
Diameter +5.2% · Too big a jump
245/65R18 → 265/50R20
245/65R18
Diameter +0.3% · This fits
265/50R20 → 265/55R20
265/55R20
Diameter −3.3% · Borderline. Check clearance first
265/50R20 → 285/50R20
285/50R20
Diameter −2.5% · This fits
265/50R20 → 305/50R20
305/50R20
Diameter −4.9% · Borderline. Check clearance first
265/50R20 → 265/45R21
265/45R21
Diameter +0.1% · This fits
265/50R20 → 275/45R21
275/45R21
Diameter −1.0% · This fits
265/50R20 → 285/40R21
285/40R21
Diameter +1.5% · This fits
265/50R20 → 285/45R21
285/45R21
Diameter −2.1% · This fits
265/50R20 → 275/40R22
275/40R22
Diameter −0.7% · This fits
265/50R20 → 285/40R22
285/40R22
Diameter −1.8% · This fits
Common questions
- What is 265/50R20 in inches?
- A 265/50R20 tire is 30.43 inches tall and 10.4 inches wide, with a 5.22-inch sidewall, mounted on a 20-inch wheel. In metric that is 773 mm tall and 265 mm wide. The circumference is 95.61 inches.
- How tall is a 265/50R20 tire?
- 30.43 inches, or 773 mm. That is the overall diameter, wheel included. It turns about 663 times per mile, which is what your speedometer counts.
- What do the numbers in 265/50R20 mean?
- 265 is the tread width in millimeters, 50 is the aspect ratio — the sidewall height as a percentage of the tread width — and 20 is the wheel diameter in inches. So the sidewall is 265 × 50% = 132.5 mm tall.