275/60R20
A 275/60R20 tire is 32.99 inches tall and 10.8 inches wide, with a 6.50-inch sidewall, mounted on a 20-inch wheel.
Common fitments: F-150, Ram 1500, Tundra
Overall diameter
32.99″
838 mm
Sidewall height
6.50″
165.0 mm
Tread width
275 mm
10.8″
Circumference
103.65″
8.6 ft
Revs per mile
611
380 per km
Wheel diameter
20″
aspect ratio 60%
Cross-section
- Overall diameter
- 32.99″
- Sidewall (each side)
- 6.50″
- Wheel
- 20″
275/60R20 in inches and millimeters
Every dimension of a 275/60R20, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 32.99″ | 838 mm |
| Tread width | 10.8″ | 275 mm |
| Sidewall height | 6.50″ | 165.0 mm |
| Wheel diameter | 20″ | 508 mm |
| Circumference | 103.65″ | 2633 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.
275/60R20 compared with other sizes
All 31 practical swaps involving 275/60R20 — diameter change, speedometer impact and a fit verdict for each.
275/60R20 → 275/55R20
275/55R20
Diameter +3.4% · Borderline. Check clearance first
275/60R20 → 275/70R18
275/70R18
Diameter −0.5% · This fits
275/60R20 → 295/70R18
295/70R18
Diameter −3.7% · Borderline. Check clearance first
275/60R20 → 265/55R20
265/55R20
Diameter +4.8% · Borderline. Check clearance first
275/60R20 → 265/60R20
265/60R20
Diameter +1.5% · This fits
305/55R20 → 275/60R20
305/55R20
Diameter +0.7% · This fits
265/60R20 → 275/60R20
265/60R20
Diameter −1.4% · This fits
285/60R20 → 275/60R20
285/60R20
Diameter +1.4% · This fits
285/55R20 → 275/60R20
285/55R20
Diameter −2.0% · This fits
275/65R20 → 275/60R20
275/65R20
Diameter +3.3% · Borderline. Check clearance first
275/55R20 → 275/60R20
275/55R20
Diameter −3.3% · Borderline. Check clearance first
295/60R20 → 275/60R20
295/60R20
Diameter +2.9% · This fits
305/50R20 → 275/60R20
305/50R20
Diameter −3.0% · This fits
275/70R18 → 275/60R20
275/70R18
Diameter +0.5% · This fits
275/50R22 → 275/60R20
275/50R22
Diameter −0.5% · This fits
265/55R20 → 275/60R20
265/55R20
Diameter −4.6% · Borderline. Check clearance first
285/65R20 → 275/60R20
285/65R20
Diameter +4.8% · Borderline. Check clearance first
285/50R20 → 275/60R20
285/50R20
Diameter −5.4% · Too big a jump
305/45R22 → 275/60R20
305/45R22
Diameter −0.6% · This fits
275/60R20 → 275/65R20
275/65R20
Diameter −3.2% · Borderline. Check clearance first
275/60R20 → 285/55R20
285/55R20
Diameter +2.0% · This fits
275/60R20 → 285/60R20
285/60R20
Diameter −1.4% · This fits
275/60R20 → 285/65R20
285/65R20
Diameter −4.6% · Borderline. Check clearance first
275/60R20 → 295/60R20
295/60R20
Diameter −2.8% · This fits
275/60R20 → 305/50R20
305/50R20
Diameter +3.1% · Borderline. Check clearance first
275/60R20 → 305/55R20
305/55R20
Diameter −0.7% · This fits
275/60R20 → 275/50R21
275/50R21
Diameter +3.7% · Borderline. Check clearance first
275/60R20 → 275/50R22
275/50R22
Diameter +0.5% · This fits
275/60R20 → 285/45R22
285/45R22
Diameter +2.8% · This fits
275/60R20 → 285/50R22
285/50R22
Diameter −0.7% · This fits
275/60R20 → 305/45R22
305/45R22
Diameter +0.6% · This fits
Common questions
- What is 275/60R20 in inches?
- A 275/60R20 tire is 32.99 inches tall and 10.8 inches wide, with a 6.50-inch sidewall, mounted on a 20-inch wheel. In metric that is 838 mm tall and 275 mm wide. The circumference is 103.65 inches.
- How tall is a 275/60R20 tire?
- 32.99 inches, or 838 mm. That is the overall diameter, wheel included. It turns about 611 times per mile, which is what your speedometer counts.
- What do the numbers in 275/60R20 mean?
- 275 is the tread width in millimeters, 60 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 275 × 60% = 165.0 mm tall.