275/40R19
A 275/40R19 tire is 27.66 inches tall and 10.8 inches wide, with a 4.33-inch sidewall, mounted on a 19-inch wheel.
Common fitments: Challenger, Corvette (rear)
Overall diameter
27.66″
703 mm
Sidewall height
4.33″
110.0 mm
Tread width
275 mm
10.8″
Circumference
86.90″
7.2 ft
Revs per mile
729
453 per km
Wheel diameter
19″
aspect ratio 40%
Cross-section
- Overall diameter
- 27.66″
- Sidewall (each side)
- 4.33″
- Wheel
- 19″
275/40R19 in inches and millimeters
Every dimension of a 275/40R19, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 27.66″ | 703 mm |
| Tread width | 10.8″ | 275 mm |
| Sidewall height | 4.33″ | 110.0 mm |
| Wheel diameter | 19″ | 483 mm |
| Circumference | 86.90″ | 2207 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.
275/40R19 compared with other sizes
All 28 practical swaps involving 275/40R19 — diameter change, speedometer impact and a fit verdict for each.
275/40R19 → 235/40R19
235/40R19
Diameter +4.8% · Borderline. Check clearance first
275/40R19 → 245/40R19
245/40R19
Diameter +3.5% · Borderline. Check clearance first
275/40R19 → 245/45R19
245/45R19
Diameter −0.1% · This fits
275/40R19 → 255/40R19
255/40R19
Diameter +2.3% · This fits
245/45R19 → 275/40R19
245/45R19
Diameter +0.1% · This fits
235/45R19 → 275/40R19
235/45R19
Diameter −1.2% · This fits
255/45R19 → 275/40R19
255/45R19
Diameter +1.4% · This fits
235/50R19 → 275/40R19
235/50R19
Diameter +2.1% · This fits
255/40R19 → 275/40R19
255/40R19
Diameter −2.3% · This fits
245/40R19 → 275/40R19
245/40R19
Diameter −3.4% · Borderline. Check clearance first
275/35R20 → 275/40R19
275/35R20
Diameter −0.3% · This fits
235/40R19 → 275/40R19
235/40R19
Diameter −4.6% · Borderline. Check clearance first
255/50R19 → 275/40R19
255/50R19
Diameter +5.0% · Borderline. Check clearance first
245/40R20 → 275/40R19
245/40R20
Diameter +0.2% · This fits
235/55R19 → 275/40R19
235/55R19
Diameter +5.5% · Too big a jump
265/35R20 → 275/40R19
265/35R20
Diameter −1.3% · This fits
235/50R18 → 275/40R19
235/50R18
Diameter −1.5% · This fits
235/60R17 → 275/40R19
235/60R17
Diameter +1.6% · This fits
275/40R19 → 255/35R20
255/35R20
Diameter +2.3% · This fits
275/40R19 → 295/35R20
295/35R20
Diameter −1.7% · This fits
275/40R19 → 235/45R19
235/45R19
Diameter +1.2% · This fits
275/40R19 → 235/50R19
235/50R19
Diameter −2.1% · This fits
275/40R19 → 235/55R19
235/55R19
Diameter −5.2% · Too big a jump
275/40R19 → 255/45R19
255/45R19
Diameter −1.3% · This fits
275/40R19 → 255/50R19
255/50R19
Diameter −4.7% · Borderline. Check clearance first
275/40R19 → 245/40R20
245/40R20
Diameter −0.2% · This fits
275/40R19 → 265/35R20
265/35R20
Diameter +1.3% · This fits
275/40R19 → 275/35R20
275/35R20
Diameter +0.3% · This fits
Common questions
- What is 275/40R19 in inches?
- A 275/40R19 tire is 27.66 inches tall and 10.8 inches wide, with a 4.33-inch sidewall, mounted on a 19-inch wheel. In metric that is 703 mm tall and 275 mm wide. The circumference is 86.90 inches.
- How tall is a 275/40R19 tire?
- 27.66 inches, or 703 mm. That is the overall diameter, wheel included. It turns about 729 times per mile, which is what your speedometer counts.
- What do the numbers in 275/40R19 mean?
- 275 is the tread width in millimeters, 40 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 275 × 40% = 110.0 mm tall.