245/55R19
Overall diameter
29.61″
752 mm
Sidewall height
5.31″
134.8 mm
Tread width
245 mm
9.6″
Circumference
93.02″
7.8 ft
Revs per mile
681
423 per km
Wheel diameter
19″
aspect ratio 55%
Cross-section
- Overall diameter
- 29.61″
- Sidewall (each side)
- 5.31″
- Wheel
- 19″
245/55R19 compared with other sizes
All 29 practical swaps involving 245/55R19 — diameter change, speedometer impact and a fit verdict for each.
245/55R19 → 265/50R19
265/50R19
Diameter +0.6% · Good fit
245/55R19 → 275/45R20
275/45R20
Diameter −0.5% · Good fit
245/55R19 → 245/65R17
245/65R17
Diameter +0.2% · Good fit
245/55R19 → 245/60R18
245/60R18
Diameter +0.1% · Good fit
245/55R19 → 235/50R19
235/50R19
Diameter +4.8% · Marginal fit — proceed with care
245/55R19 → 235/55R19
235/55R19
Diameter +1.5% · Good fit
265/50R19 → 245/55R19
265/50R19
Diameter −0.6% · Good fit
235/55R19 → 245/55R19
235/55R19
Diameter −1.5% · Good fit
255/50R19 → 245/55R19
255/50R19
Diameter −1.9% · Good fit
265/55R19 → 245/55R19
265/55R19
Diameter +2.9% · Good fit
245/60R18 → 245/55R19
245/60R18
Diameter −0.1% · Good fit
245/50R20 → 245/55R19
245/50R20
Diameter +0.1% · Good fit
245/65R17 → 245/55R19
245/65R17
Diameter −0.2% · Good fit
275/55R19 → 245/55R19
275/55R19
Diameter +4.4% · Marginal fit — proceed with care
235/50R19 → 245/55R19
235/50R19
Diameter −4.6% · Marginal fit — proceed with care
255/60R19 → 245/55R19
255/60R19
Diameter +4.9% · Marginal fit — proceed with care
255/45R19 → 245/55R19
255/45R19
Diameter −5.3% · Not recommended
275/45R20 → 245/55R19
275/45R20
Diameter +0.5% · Good fit
265/45R20 → 245/55R19
265/45R20
Diameter −0.7% · Good fit
265/40R21 → 245/55R19
265/40R21
Diameter −0.9% · Good fit
245/55R19 → 255/50R19
255/50R19
Diameter +2.0% · Good fit
245/55R19 → 255/60R19
255/60R19
Diameter −4.6% · Marginal fit — proceed with care
245/55R19 → 265/55R19
265/55R19
Diameter −2.8% · Good fit
245/55R19 → 275/55R19
275/55R19
Diameter −4.2% · Marginal fit — proceed with care
245/55R19 → 245/50R20
245/50R20
Diameter −0.1% · Good fit
245/55R19 → 265/45R20
265/45R20
Diameter +0.8% · Good fit
245/55R19 → 265/40R21
265/40R21
Diameter +0.9% · Good fit
245/55R19 → 285/40R21
285/40R21
Diameter −1.2% · Good fit
245/55R19 → 245/40R19
245/40R19
Diameter +10.8% · Not recommended
Common questions
- What is the overall diameter of a 245/55R19 tire?
- A 245/55R19 tire is about 29.61″ (752 mm) in overall diameter, with a sidewall height of 134.8 mm and a circumference of 93.02″.
- How many revolutions per mile does a 245/55R19 tire turn?
- A 245/55R19 turns roughly 681 revolutions per mile (423 per kilometre). This is the number that determines speedometer and odometer accuracy when you change tire size.
- What do the numbers in 245/55R19 mean?
- 245 is the tread width in millimetres, 55 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 245 × 55% = 134.8 mm tall.