225/75R16
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 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% · Marginal fit — proceed with care
225/75R16 → 265/70R16
265/70R16
Diameter −4.3% · Marginal fit — proceed with care
225/75R16 → 235/60R18
235/60R18
Diameter +0.6% · Good fit
225/75R16 → 255/55R18
255/55R18
Diameter +0.8% · Good fit
225/75R16 → 235/75R15
235/75R15
Diameter +1.4% · Good fit
225/75R16 → 265/70R15
265/70R15
Diameter −1.1% · Good fit
225/75R16 → 215/70R16
215/70R16
Diameter +5.2% · Not recommended
225/75R16 → 225/70R16
225/70R16
Diameter +3.1% · Marginal fit — proceed with care
245/70R16 → 225/75R16
245/70R16
Diameter +0.7% · Good fit
235/70R16 → 225/75R16
235/70R16
Diameter −1.1% · Good fit
225/70R16 → 225/75R16
225/70R16
Diameter −3.0% · Marginal fit — proceed with care
255/70R16 → 225/75R16
255/70R16
Diameter +2.6% · Good fit
245/75R16 → 225/75R16
245/75R16
Diameter +4.0% · Marginal fit — proceed with care
265/70R16 → 225/75R16
265/70R16
Diameter +4.5% · Marginal fit — proceed with care
215/70R16 → 225/75R16
215/70R16
Diameter −4.9% · Marginal fit — proceed with care
235/60R18 → 225/75R16
235/60R18
Diameter −0.6% · Good fit
255/55R18 → 225/75R16
255/55R18
Diameter −0.8% · Good fit
245/65R17 → 225/75R16
245/65R17
Diameter +0.9% · Good fit
235/65R17 → 225/75R16
235/65R17
Diameter −0.9% · Good fit
245/60R18 → 225/75R16
245/60R18
Diameter +1.0% · Good fit
225/60R18 → 225/75R16
225/60R18
Diameter −2.2% · Good fit
265/70R15 → 225/75R16
265/70R15
Diameter +1.1% · Good fit
225/75R16 → 235/70R16
235/70R16
Diameter +1.2% · Good fit
225/75R16 → 245/70R16
245/70R16
Diameter −0.7% · Good fit
225/75R16 → 255/70R16
255/70R16
Diameter −2.6% · Good fit
225/75R16 → 225/65R17
225/65R17
Diameter +2.7% · Good fit
225/75R16 → 225/60R18
225/60R18
Diameter +2.3% · Good fit
225/75R16 → 205/55R16
205/55R16
Diameter +17.7% · Not recommended
Common questions
- What is the overall diameter of a 225/75R16 tire?
- A 225/75R16 tire is about 29.29″ (744 mm) in overall diameter, with a sidewall height of 168.8 mm and a circumference of 92.01″.
- How many revolutions per mile does a 225/75R16 tire turn?
- A 225/75R16 turns roughly 689 revolutions per mile (428 per kilometre). This is the number that determines speedometer and odometer accuracy when you change tire size.
- What do the numbers in 225/75R16 mean?
- 225 is the tread width in millimetres, 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.