225/75R16
A 225/75R16 tire is 29.29 inches tall and 8.9 inches wide, with a 6.64-inch sidewall, mounted on a 16-inch wheel.
Overall diameter
29.29″
744 mm
Sidewall height
6.64″
168.8 mm
Tread width
225 mm
8.9″
Circumference
92.01″
7.7 ft
Revs per mile
689
428 per km
Wheel diameter
16″
aspect ratio 75%
Cross-section
- Overall diameter
- 29.29″
- Sidewall (each side)
- 6.64″
- Wheel
- 16″
225/75R16 in inches and millimeters
Every dimension of a 225/75R16, converted both ways. Calculated from the size code, accurate to about 1%.
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter (height) | 29.29″ | 744 mm |
| Tread width | 8.9″ | 225 mm |
| Sidewall height | 6.64″ | 168.8 mm |
| Wheel diameter | 16″ | 406 mm |
| Circumference | 92.01″ | 2337 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.
225/75R16 compared with other sizes
All 28 practical swaps involving 225/75R16 — diameter change, speedometer impact and a fit verdict for each.
225/75R16 → 245/75R16
245/75R16
Diameter −3.9% · Borderline. Check clearance first
225/75R16 → 265/70R16
265/70R16
Diameter −4.3% · Borderline. Check clearance first
225/75R16 → 235/60R18
235/60R18
Diameter +0.6% · This fits
225/75R16 → 255/55R18
255/55R18
Diameter +0.8% · This fits
225/75R16 → 235/75R15
235/75R15
Diameter +1.4% · This fits
225/75R16 → 265/70R15
265/70R15
Diameter −1.1% · This fits
225/75R16 → 215/70R16
215/70R16
Diameter +5.2% · Too big a jump
225/75R16 → 225/70R16
225/70R16
Diameter +3.1% · Borderline. Check clearance first
245/70R16 → 225/75R16
245/70R16
Diameter +0.7% · This fits
235/70R16 → 225/75R16
235/70R16
Diameter −1.1% · This fits
225/70R16 → 225/75R16
225/70R16
Diameter −3.0% · Borderline. Check clearance first
255/70R16 → 225/75R16
255/70R16
Diameter +2.6% · This fits
245/75R16 → 225/75R16
245/75R16
Diameter +4.0% · Borderline. Check clearance first
265/70R16 → 225/75R16
265/70R16
Diameter +4.5% · Borderline. Check clearance first
215/70R16 → 225/75R16
215/70R16
Diameter −4.9% · Borderline. Check clearance first
235/60R18 → 225/75R16
235/60R18
Diameter −0.6% · This fits
255/55R18 → 225/75R16
255/55R18
Diameter −0.8% · This fits
245/65R17 → 225/75R16
245/65R17
Diameter +0.9% · This fits
235/65R17 → 225/75R16
235/65R17
Diameter −0.9% · This fits
245/60R18 → 225/75R16
245/60R18
Diameter +1.0% · This fits
225/60R18 → 225/75R16
225/60R18
Diameter −2.2% · This fits
265/70R15 → 225/75R16
265/70R15
Diameter +1.1% · This fits
225/75R16 → 235/70R16
235/70R16
Diameter +1.2% · This fits
225/75R16 → 245/70R16
245/70R16
Diameter −0.7% · This fits
225/75R16 → 255/70R16
255/70R16
Diameter −2.6% · This fits
225/75R16 → 225/65R17
225/65R17
Diameter +2.7% · This fits
225/75R16 → 225/60R18
225/60R18
Diameter +2.3% · This fits
225/75R16 → 205/55R16
205/55R16
Diameter +17.7% · Too big a jump
Common questions
- What is 225/75R16 in inches?
- A 225/75R16 tire is 29.29 inches tall and 8.9 inches wide, with a 6.64-inch sidewall, mounted on a 16-inch wheel. In metric that is 744 mm tall and 225 mm wide. The circumference is 92.01 inches.
- How tall is a 225/75R16 tire?
- 29.29 inches, or 744 mm. That is the overall diameter, wheel included. It turns about 689 times per mile, which is what your speedometer counts.
- What do the numbers in 225/75R16 mean?
- 225 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 225 × 75% = 168.8 mm tall.