225/70R16
Overall diameter
28.40″
721 mm
Sidewall height
6.20″
157.5 mm
Tread width
225 mm
8.9″
Circumference
89.23″
7.4 ft
Revs per mile
710
441 per km
Wheel diameter
16″
aspect ratio 70%
Cross-section
- Overall diameter
- 28.40″
- Sidewall (each side)
- 6.20″
- Wheel
- 16″
225/70R16 compared with other sizes
All 28 practical swaps involving 225/70R16 — diameter change, speedometer impact and a fit verdict for each.
225/70R16 → 215/65R16
215/65R16
Diameter +5.2% · Not recommended
225/70R16 → 235/60R16
235/60R16
Diameter +4.8% · Marginal fit — proceed with care
225/70R16 → 235/75R15
235/75R15
Diameter −1.6% · Good fit
225/70R16 → 215/70R16
215/70R16
Diameter +2.0% · Good fit
225/70R16 → 225/65R16
225/65R16
Diameter +3.2% · Marginal fit — proceed with care
225/75R16 → 225/70R16
225/75R16
Diameter +3.1% · Marginal fit — proceed with care
225/65R16 → 225/70R16
225/65R16
Diameter −3.1% · Marginal fit — proceed with care
235/70R16 → 225/70R16
235/70R16
Diameter +1.9% · Good fit
215/70R16 → 225/70R16
215/70R16
Diameter −1.9% · Good fit
245/70R16 → 225/70R16
245/70R16
Diameter +3.9% · Marginal fit — proceed with care
225/65R17 → 225/70R16
225/65R17
Diameter +0.4% · Good fit
225/60R18 → 225/70R16
225/60R18
Diameter +0.8% · Good fit
235/60R16 → 225/70R16
235/60R16
Diameter −4.6% · Marginal fit — proceed with care
215/65R16 → 225/70R16
215/65R16
Diameter −4.9% · Marginal fit — proceed with care
235/55R18 → 225/70R16
235/55R18
Diameter −0.8% · Good fit
235/60R17 → 225/70R16
235/60R17
Diameter −1.1% · Good fit
215/65R17 → 225/70R16
215/65R17
Diameter −1.4% · Good fit
225/60R17 → 225/70R16
225/60R17
Diameter −2.7% · Good fit
235/75R15 → 225/70R16
235/75R15
Diameter +1.7% · Good fit
225/70R16 → 225/75R16
225/75R16
Diameter −3.0% · Marginal fit — proceed with care
225/70R16 → 235/70R16
235/70R16
Diameter −1.9% · Good fit
225/70R16 → 245/70R16
245/70R16
Diameter −3.7% · Marginal fit — proceed with care
225/70R16 → 215/65R17
215/65R17
Diameter +1.4% · Good fit
225/70R16 → 225/65R17
225/65R17
Diameter −0.4% · Good fit
225/70R16 → 235/60R17
235/60R17
Diameter +1.1% · Good fit
225/70R16 → 225/60R18
225/60R18
Diameter −0.8% · Good fit
225/70R16 → 235/55R18
235/55R18
Diameter +0.8% · Good fit
225/70R16 → 205/55R16
205/55R16
Diameter +14.2% · Not recommended
Common questions
- What is the overall diameter of a 225/70R16 tire?
- A 225/70R16 tire is about 28.40″ (721 mm) in overall diameter, with a sidewall height of 157.5 mm and a circumference of 89.23″.
- How many revolutions per mile does a 225/70R16 tire turn?
- A 225/70R16 turns roughly 710 revolutions per mile (441 per kilometre). This is the number that determines speedometer and odometer accuracy when you change tire size.
- What do the numbers in 225/70R16 mean?
- 225 is the tread width in millimetres, 70 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 × 70% = 157.5 mm tall.