245/50R20
A 245/50R20 tire is 29.65 inches tall and 9.6 inches wide, with a 4.82-inch sidewall, mounted on a 20-inch wheel.
Common fitments: Charger AWD, 5 Series
Overall diameter
29.65″
753 mm
Sidewall height
4.82″
122.5 mm
Tread width
245 mm
9.6″
Circumference
93.13″
7.8 ft
Revs per mile
680
423 per km
Wheel diameter
20″
aspect ratio 50%
Cross-section
- Overall diameter
- 29.65″
- Sidewall (each side)
- 4.82″
- Wheel
- 20″
245/50R20 in inches and millimeters
Every dimension of a 245/50R20, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 29.65″ | 753 mm |
| Tread width | 9.6″ | 245 mm |
| Sidewall height | 4.82″ | 122.5 mm |
| Wheel diameter | 20″ | 508 mm |
| Circumference | 93.13″ | 2366 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.
245/50R20 compared with other sizes
All 29 practical swaps involving 245/50R20 — diameter change, speedometer impact and a fit verdict for each.
245/50R20 → 265/50R19
265/50R19
Diameter +0.7% · Fitment not determined
245/50R20 → 255/45R20
255/45R20
Diameter +2.1% · Fitment not determined
245/50R20 → 275/45R20
275/45R20
Diameter −0.3% · Fitment not determined
245/50R20 → 245/60R18
245/60R18
Diameter +0.2% · Fitment not determined
245/50R20 → 245/55R19
245/55R19
Diameter +0.1% · Fitment not determined
245/50R20 → 245/45R20
245/45R20
Diameter +3.4% · Fitment not determined
275/45R20 → 245/50R20
275/45R20
Diameter +0.3% · Fitment not determined
265/45R20 → 245/50R20
265/45R20
Diameter −0.9% · Fitment not determined
255/50R20 → 245/50R20
255/50R20
Diameter +1.3% · Fitment not determined
245/45R20 → 245/50R20
245/45R20
Diameter −3.3% · Fitment not determined
255/45R20 → 245/50R20
255/45R20
Diameter −2.1% · Fitment not determined
265/50R20 → 245/50R20
265/50R20
Diameter +2.7% · Fitment not determined
275/40R20 → 245/50R20
275/40R20
Diameter −3.3% · Fitment not determined
245/55R19 → 245/50R20
245/55R19
Diameter −0.1% · Fitment not determined
245/60R18 → 245/50R20
245/60R18
Diameter −0.2% · Fitment not determined
255/55R20 → 245/50R20
255/55R20
Diameter +4.7% · Fitment not determined
285/50R20 → 245/50R20
285/50R20
Diameter +5.3% · Fitment not determined
265/50R19 → 245/50R20
265/50R19
Diameter −0.7% · Fitment not determined
265/40R21 → 245/50R20
265/40R21
Diameter −1.0% · Fitment not determined
285/40R21 → 245/50R20
285/40R21
Diameter +1.1% · Fitment not determined
245/50R20 → 255/50R20
255/50R20
Diameter −1.3% · Fitment not determined
245/50R20 → 255/55R20
255/55R20
Diameter −4.5% · Fitment not determined
245/50R20 → 265/45R20
265/45R20
Diameter +0.9% · Fitment not determined
245/50R20 → 265/50R20
265/50R20
Diameter −2.6% · Fitment not determined
245/50R20 → 275/40R20
275/40R20
Diameter +3.4% · Fitment not determined
245/50R20 → 285/50R20
285/50R20
Diameter −5.0% · Fitment not determined
245/50R20 → 265/40R21
265/40R21
Diameter +1.0% · Fitment not determined
245/50R20 → 285/40R21
285/40R21
Diameter −1.1% · Fitment not determined
245/50R20 → 275/55R20
275/55R20
Diameter −7.1% · Fitment not determined
Common questions
- What is 245/50R20 in inches?
- A 245/50R20 tire is 29.65 inches tall and 9.6 inches wide, with a 4.82-inch sidewall, mounted on a 20-inch wheel. In metric that is 753 mm tall and 245 mm wide. The circumference is 93.13 inches.
- How tall is a 245/50R20 tire?
- 29.65 inches, or 753 mm. That is the overall diameter, wheel included. It turns about 680 times per mile, which is what your speedometer counts.
- What do the numbers in 245/50R20 mean?
- 245 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 245 × 50% = 122.5 mm tall.