TireSizeCheck

225/65R16

A 225/65R16 tire is 27.52 inches tall and 8.9 inches wide, with a 5.76-inch sidewall, mounted on a 16-inch wheel.

Common fitments: CR-V, Forester

Overall diameter

27.52″

699 mm

Sidewall height

5.76″

146.3 mm

Tread width

225 mm

8.9″

Circumference

86.44″

7.2 ft

Revs per mile

733

455 per km

Wheel diameter

16″

aspect ratio 65%

Cross-section

Overall diameter
27.52″
Sidewall (each side)
5.76″
Wheel
16″

225/65R16 in inches and millimeters

Every dimension of a 225/65R16, converted both ways. Calculated from the size code, accurate to about 1%.

Measurement Inches Millimeters
Overall diameter (height) 27.52″ 699 mm
Tread width 8.9″ 225 mm
Sidewall height 5.76″ 146.3 mm
Wheel diameter 16″ 406 mm
Circumference 86.44″ 2196 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.

225/65R16 compared with other sizes

All 24 practical swaps involving 225/65R16 — diameter change, speedometer impact and a fit verdict for each.

225/65R16 → 215/60R16

215/60R16

Diameter +5.2% · Too big a jump

225/65R16 → 215/65R16

215/65R16

Diameter +1.9% · This fits

225/65R16 → 225/60R16

225/60R16

Diameter +3.3% · Borderline. Check clearance first

225/65R16 → 235/60R16

235/60R16

Diameter +1.5% · This fits

225/65R16 → 205/65R16

205/65R16

Diameter +3.9% · Borderline. Check clearance first

225/65R16 → 215/70R16

215/70R16

Diameter −1.2% · This fits

215/70R16 → 225/65R16

215/70R16

Diameter +1.2% · This fits

235/60R16 → 225/65R16

235/60R16

Diameter −1.5% · This fits

215/65R16 → 225/65R16

215/65R16

Diameter −1.9% · This fits

225/60R16 → 225/65R16

225/60R16

Diameter −3.2% · Borderline. Check clearance first

225/70R16 → 225/65R16

225/70R16

Diameter +3.2% · Borderline. Check clearance first

205/65R16 → 225/65R16

205/65R16

Diameter −3.7% · Borderline. Check clearance first

225/60R17 → 225/65R16

225/60R17

Diameter +0.4% · This fits

215/60R16 → 225/65R16

215/60R16

Diameter −4.9% · Borderline. Check clearance first

235/70R16 → 225/65R16

235/70R16

Diameter +5.2% · Too big a jump

235/50R18 → 225/65R16

235/50R18

Diameter −1.0% · This fits

235/55R17 → 225/65R16

235/55R17

Diameter −1.2% · This fits

215/60R17 → 225/65R16

215/60R17

Diameter −1.3% · This fits

225/55R17 → 225/65R16

225/55R17

Diameter −2.8% · This fits

255/45R18 → 225/65R16

255/45R18

Diameter −1.7% · This fits

225/65R16 → 225/70R16

225/70R16

Diameter −3.1% · Borderline. Check clearance first

225/65R16 → 235/70R16

235/70R16

Diameter −5.0% · Borderline. Check clearance first

225/65R16 → 225/60R17

225/60R17

Diameter −0.4% · This fits

225/65R16 → 205/55R16

205/55R16

Diameter +10.6% · Too big a jump

Common questions

What is 225/65R16 in inches?
A 225/65R16 tire is 27.52 inches tall and 8.9 inches wide, with a 5.76-inch sidewall, mounted on a 16-inch wheel. In metric that is 699 mm tall and 225 mm wide. The circumference is 86.44 inches.
How tall is a 225/65R16 tire?
27.52 inches, or 699 mm. That is the overall diameter, wheel included. It turns about 733 times per mile, which is what your speedometer counts.
What do the numbers in 225/65R16 mean?
225 is the tread width in millimeters, 65 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 225 × 65% = 146.3 mm tall.