275/40R22
A 275/40R22 tire is 30.66 inches tall and 10.8 inches wide, with a 4.33-inch sidewall, mounted on a 22-inch wheel.
Overall diameter
30.66″
779 mm
Sidewall height
4.33″
110.0 mm
Tread width
275 mm
10.8″
Circumference
96.33″
8.0 ft
Revs per mile
658
409 per km
Wheel diameter
22″
aspect ratio 40%
Cross-section
- Overall diameter
- 30.66″
- Sidewall (each side)
- 4.33″
- Wheel
- 22″
275/40R22 in inches and millimeters
Every dimension of a 275/40R22, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 30.66″ | 779 mm |
| Tread width | 10.8″ | 275 mm |
| Sidewall height | 4.33″ | 110.0 mm |
| Wheel diameter | 22″ | 559 mm |
| Circumference | 96.33″ | 2447 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.
275/40R22 compared with other sizes
All 21 practical swaps involving 275/40R22 — diameter change, speedometer impact and a fit verdict for each.
275/40R22 → 265/45R21
265/45R21
Diameter +0.9% · This fits
275/40R22 → 275/45R21
275/45R21
Diameter −0.3% · This fits
275/40R22 → 275/50R21
275/50R21
Diameter −3.7% · Borderline. Check clearance first
275/40R22 → 285/40R21
285/40R21
Diameter +2.3% · This fits
275/40R22 → 285/45R21
285/45R21
Diameter −1.4% · This fits
285/40R22 → 275/40R22
285/40R22
Diameter +1.0% · This fits
275/45R21 → 275/40R22
275/45R21
Diameter +0.3% · This fits
285/45R22 → 275/40R22
285/45R22
Diameter +4.7% · Borderline. Check clearance first
265/50R20 → 275/40R22
265/50R20
Diameter −0.7% · This fits
265/45R21 → 275/40R22
265/45R21
Diameter −0.9% · This fits
255/55R20 → 275/40R22
255/55R20
Diameter +1.2% · This fits
285/45R21 → 275/40R22
285/45R21
Diameter +1.4% · This fits
275/45R20 → 275/40R22
275/45R20
Diameter −3.0% · This fits
285/50R20 → 275/40R22
285/50R20
Diameter +1.8% · This fits
255/50R20 → 275/40R22
255/50R20
Diameter −2.0% · This fits
285/40R21 → 275/40R22
285/40R21
Diameter −2.2% · This fits
275/50R21 → 275/40R22
275/50R21
Diameter +3.8% · Borderline. Check clearance first
265/55R20 → 275/40R22
265/55R20
Diameter +2.7% · This fits
275/55R20 → 275/40R22
275/55R20
Diameter +4.1% · Borderline. Check clearance first
275/40R22 → 285/40R22
285/40R22
Diameter −1.0% · This fits
275/40R22 → 285/45R22
285/45R22
Diameter −4.5% · Borderline. Check clearance first
Common questions
- What is 275/40R22 in inches?
- A 275/40R22 tire is 30.66 inches tall and 10.8 inches wide, with a 4.33-inch sidewall, mounted on a 22-inch wheel. In metric that is 779 mm tall and 275 mm wide. The circumference is 96.33 inches.
- How tall is a 275/40R22 tire?
- 30.66 inches, or 779 mm. That is the overall diameter, wheel included. It turns about 658 times per mile, which is what your speedometer counts.
- What do the numbers in 275/40R22 mean?
- 275 is the tread width in millimeters, 40 is the aspect ratio — the sidewall height as a percentage of the tread width — and 22 is the wheel diameter in inches. So the sidewall is 275 × 40% = 110.0 mm tall.