235/45R19
Overall diameter
27.33″
694 mm
Sidewall height
4.16″
105.8 mm
Tread width
235 mm
9.3″
Circumference
85.85″
7.2 ft
Revs per mile
738
459 per km
Wheel diameter
19″
aspect ratio 45%
Cross-section
- Overall diameter
- 27.33″
- Sidewall (each side)
- 4.16″
- Wheel
- 19″
235/45R19 compared with other sizes
All 30 practical swaps involving 235/45R19 — diameter change, speedometer impact and a fit verdict for each.
235/45R19 → 235/55R17
235/55R17
Diameter +0.6% · Good fit
235/45R19 → 235/50R18
235/50R18
Diameter +0.3% · Good fit
235/45R19 → 235/40R19
235/40R19
Diameter +3.5% · Marginal fit — proceed with care
235/45R19 → 245/40R19
245/40R19
Diameter +2.3% · Good fit
235/45R19 → 245/45R19
245/45R19
Diameter −1.3% · Good fit
235/45R19 → 255/35R19
255/35R19
Diameter +5.0% · Marginal fit — proceed with care
235/45R19 → 255/40R19
255/40R19
Diameter +1.1% · Good fit
235/45R19 → 275/40R19
275/40R19
Diameter −1.2% · Good fit
235/45R19 → 245/35R20
245/35R20
Diameter +2.1% · Good fit
235/45R19 → 255/35R20
255/35R20
Diameter +1.1% · Good fit
235/45R19 → 225/60R17
225/60R17
Diameter −1.1% · Good fit
255/40R19 → 235/45R19
255/40R19
Diameter −1.1% · Good fit
275/40R19 → 235/45R19
275/40R19
Diameter +1.2% · Good fit
245/45R19 → 235/45R19
245/45R19
Diameter +1.3% · Good fit
235/40R19 → 235/45R19
235/40R19
Diameter −3.4% · Marginal fit — proceed with care
235/50R19 → 235/45R19
235/50R19
Diameter +3.4% · Marginal fit — proceed with care
245/40R19 → 235/45R19
245/40R19
Diameter −2.2% · Good fit
255/45R19 → 235/45R19
255/45R19
Diameter +2.6% · Good fit
235/50R18 → 235/45R19
235/50R18
Diameter −0.3% · Good fit
235/55R17 → 235/45R19
235/55R17
Diameter −0.5% · Good fit
255/35R19 → 235/45R19
255/35R19
Diameter −4.8% · Marginal fit — proceed with care
265/35R20 → 235/45R19
265/35R20
Diameter −0.1% · Good fit
215/60R17 → 235/45R19
215/60R17
Diameter −0.6% · Good fit
275/35R20 → 235/45R19
275/35R20
Diameter +0.9% · Good fit
255/45R18 → 235/45R19
255/45R18
Diameter −1.1% · Good fit
235/45R19 → 235/50R19
235/50R19
Diameter −3.3% · Marginal fit — proceed with care
235/45R19 → 255/45R19
255/45R19
Diameter −2.5% · Good fit
235/45R19 → 245/40R20
245/40R20
Diameter −1.4% · Good fit
235/45R19 → 265/35R20
265/35R20
Diameter +0.1% · Good fit
235/45R19 → 275/35R20
275/35R20
Diameter −0.9% · Good fit
Common questions
- What is the overall diameter of a 235/45R19 tire?
- A 235/45R19 tire is about 27.33″ (694 mm) in overall diameter, with a sidewall height of 105.8 mm and a circumference of 85.85″.
- How many revolutions per mile does a 235/45R19 tire turn?
- A 235/45R19 turns roughly 738 revolutions per mile (459 per kilometre). This is the number that determines speedometer and odometer accuracy when you change tire size.
- What do the numbers in 235/45R19 mean?
- 235 is the tread width in millimetres, 45 is the aspect ratio — the sidewall height as a percentage of the tread width — and 19 is the wheel diameter in inches. So the sidewall is 235 × 45% = 105.8 mm tall.