245/55R19
A 245/55R19 tire is 29.61 inches tall and 9.6 inches wide, with a 5.31-inch sidewall, mounted on a 19-inch wheel.
Overall diameter
29.61″
752 mm
Sidewall height
5.31″
134.8 mm
Tread width
245 mm
9.6″
Circumference
93.02″
7.8 ft
Revs per mile
681
423 per km
Wheel diameter
19″
aspect ratio 55%
Cross-section
- Overall diameter
- 29.61″
- Sidewall (each side)
- 5.31″
- Wheel
- 19″
245/55R19 in inches and millimeters
Every dimension of a 245/55R19, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 29.61″ | 752 mm |
| Tread width | 9.6″ | 245 mm |
| Sidewall height | 5.31″ | 134.8 mm |
| Wheel diameter | 19″ | 483 mm |
| Circumference | 93.02″ | 2363 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.
245/55R19 compared with other sizes
All 29 practical swaps involving 245/55R19 — diameter change, speedometer impact and a fit verdict for each.
245/55R19 → 265/50R19
265/50R19
Diameter +0.6% · This fits
245/55R19 → 275/45R20
275/45R20
Diameter −0.5% · This fits
245/55R19 → 245/65R17
245/65R17
Diameter +0.2% · This fits
245/55R19 → 245/60R18
245/60R18
Diameter +0.1% · This fits
245/55R19 → 235/50R19
235/50R19
Diameter +4.8% · Borderline. Check clearance first
245/55R19 → 235/55R19
235/55R19
Diameter +1.5% · This fits
265/50R19 → 245/55R19
265/50R19
Diameter −0.6% · This fits
235/55R19 → 245/55R19
235/55R19
Diameter −1.5% · This fits
255/50R19 → 245/55R19
255/50R19
Diameter −1.9% · This fits
265/55R19 → 245/55R19
265/55R19
Diameter +2.9% · This fits
245/60R18 → 245/55R19
245/60R18
Diameter −0.1% · This fits
245/50R20 → 245/55R19
245/50R20
Diameter +0.1% · This fits
245/65R17 → 245/55R19
245/65R17
Diameter −0.2% · This fits
275/55R19 → 245/55R19
275/55R19
Diameter +4.4% · Borderline. Check clearance first
235/50R19 → 245/55R19
235/50R19
Diameter −4.6% · Borderline. Check clearance first
255/60R19 → 245/55R19
255/60R19
Diameter +4.9% · Borderline. Check clearance first
255/45R19 → 245/55R19
255/45R19
Diameter −5.3% · Too big a jump
275/45R20 → 245/55R19
275/45R20
Diameter +0.5% · This fits
265/45R20 → 245/55R19
265/45R20
Diameter −0.7% · This fits
265/40R21 → 245/55R19
265/40R21
Diameter −0.9% · This fits
245/55R19 → 255/50R19
255/50R19
Diameter +2.0% · This fits
245/55R19 → 255/60R19
255/60R19
Diameter −4.6% · Borderline. Check clearance first
245/55R19 → 265/55R19
265/55R19
Diameter −2.8% · This fits
245/55R19 → 275/55R19
275/55R19
Diameter −4.2% · Borderline. Check clearance first
245/55R19 → 245/50R20
245/50R20
Diameter −0.1% · This fits
245/55R19 → 265/45R20
265/45R20
Diameter +0.8% · This fits
245/55R19 → 265/40R21
265/40R21
Diameter +0.9% · This fits
245/55R19 → 285/40R21
285/40R21
Diameter −1.2% · This fits
245/55R19 → 245/40R19
245/40R19
Diameter +10.8% · Too big a jump
Common questions
- What is 245/55R19 in inches?
- A 245/55R19 tire is 29.61 inches tall and 9.6 inches wide, with a 5.31-inch sidewall, mounted on a 19-inch wheel. In metric that is 752 mm tall and 245 mm wide. The circumference is 93.02 inches.
- How tall is a 245/55R19 tire?
- 29.61 inches, or 752 mm. That is the overall diameter, wheel included. It turns about 681 times per mile, which is what your speedometer counts.
- What do the numbers in 245/55R19 mean?
- 245 is the tread width in millimeters, 55 is the aspect ratio — the sidewall height as a percentage of the tread width — and 19 is the wheel diameter in inches. So the sidewall is 245 × 55% = 134.8 mm tall.