What is 285/75R16 in inches?

A 285/75R16 tire is 32.83 inches tall and 11.2 inches wide, with a 8.42-inch sidewall, mounted on a 16-inch wheel. In metric that is 834 mm tall and 285 mm wide. The circumference is 103.14 inches.

How tall is a 285/75R16 tire?

32.83 inches, or 834 mm. That is the overall diameter, wheel included. It turns about 614 times per mile, which is what your speedometer counts.

What do the numbers in 285/75R16 mean?

285 is the tread width in millimeters, 75 is the aspect ratio — the sidewall height as a percentage of the tread width — and 16 is the wheel diameter in inches. So the sidewall is 285 × 75% = 213.8 mm tall.

285/75R16

A 285/75R16 tire is 32.83 inches tall and 11.2 inches wide, with a 8.42-inch sidewall, mounted on a 16-inch wheel.

Overall diameter

32.83″

834 mm

Sidewall height

8.42″

213.8 mm

Tread width

285 mm

11.2″

Circumference

103.14″

8.6 ft

Revs per mile

614

382 per km

Wheel diameter

16″

aspect ratio 75%

Compare vs 205/55R16 Compare with a custom size

Cross-section

Overall diameter: 32.83″
Sidewall (each side): 8.42″
Wheel: 16″

285/75R16 in inches and millimeters

Every dimension of a 285/75R16, converted both ways. Calculated from the size code, accurate to about 1%.

Measurement	Inches	Millimeters
Overall diameter (height)	32.83″	834 mm
Tread width	11.2″	285 mm
Sidewall height	8.42″	213.8 mm
Wheel diameter	16″	406 mm
Circumference	103.14″	2620 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.

285/75R16 compared with other sizes

All 23 practical swaps involving 285/75R16 — diameter change, speedometer impact and a fit verdict for each.

285/75R16 → 265/75R16

265/75R16

Diameter +3.7% · Borderline. Check clearance first

265/75R16 → 285/75R16

265/75R16

Diameter −3.6% · Borderline. Check clearance first

285/70R17 → 285/75R16

285/70R17

Diameter −0.4% · This fits

285/65R18 → 285/75R16

285/65R18

Diameter −0.7% · This fits

305/65R17 → 285/75R16

305/65R17

Diameter −0.7% · This fits

265/70R18 → 285/75R16

265/70R18

Diameter −0.7% · This fits

275/70R18 → 285/75R16

275/70R18

Diameter +1.0% · This fits

305/60R18 → 285/75R16

305/60R18

Diameter −1.3% · This fits

285/70R18 → 285/75R16

285/70R18

Diameter +2.7% · This fits

275/70R17 → 285/75R16

275/70R17

Diameter −2.1% · This fits

275/65R18 → 285/75R16

275/65R18

Diameter −2.3% · This fits

255/75R17 → 285/75R16

255/75R17

Diameter −2.4% · This fits

255/70R18 → 285/75R16

255/70R18

Diameter −2.4% · This fits

285/60R18 → 285/75R16

285/60R18

Diameter −4.2% · Borderline. Check clearance first

305/70R17 → 285/75R16

305/70R17

Diameter +3.0% · This fits

285/75R16 → 285/70R17

285/70R17

Diameter +0.4% · This fits

285/75R16 → 305/65R17

305/65R17

Diameter +0.7% · This fits

285/75R16 → 305/70R17

305/70R17

Diameter −2.9% · This fits

285/75R16 → 315/70R17

315/70R17

Diameter −4.5% · Borderline. Check clearance first

285/75R16 → 275/70R18

275/70R18

Diameter −1.0% · This fits

285/75R16 → 285/65R18

285/65R18

Diameter +0.7% · This fits

285/75R16 → 285/70R18

285/70R18

Diameter −2.6% · This fits

285/75R16 → 205/55R16

205/55R16

Diameter +32.0% · Too big a jump

Common questions

What is 285/75R16 in inches?: A 285/75R16 tire is 32.83 inches tall and 11.2 inches wide, with a 8.42-inch sidewall, mounted on a 16-inch wheel. In metric that is 834 mm tall and 285 mm wide. The circumference is 103.14 inches.
How tall is a 285/75R16 tire?: 32.83 inches, or 834 mm. That is the overall diameter, wheel included. It turns about 614 times per mile, which is what your speedometer counts.
What do the numbers in 285/75R16 mean?: 285 is the tread width in millimeters, 75 is the aspect ratio — the sidewall height as a percentage of the tread width — and 16 is the wheel diameter in inches. So the sidewall is 285 × 75% = 213.8 mm tall.