225/55R19 tire size

A 225/55R19 tire is 28.74 in (730.1 mm) tall and 8.86 in (225.0 mm) wide, and turns 702 revolutions per mile.

28.74 inOverall diameter
4.87 inSidewall height
702Revolutions per mile
28.7x8.9R19Flotation equivalent

225/55R19 dimensions
Measurement	Inches	Millimeters
Overall diameter	28.74 in	730.1 mm
Section width	8.86 in	225.0 mm
Sidewall height	4.87 in	123.8 mm
Rim diameter	19.00 in	482.6 mm
Circumference	90.30 in	2,294 mm
Revolutions per mile	702
Flotation equivalent	28.7x8.9R19 (approx.)

225/55R19 is a 19-inch tire with a 225 mm (8.86 in) section width and a 55% aspect ratio, giving a 4.87-inch sidewall and a flotation-style size of about 28.7x8.9R19.

Its overall diameter is 28.74 inches, so it rolls 90.3 inches per revolution and turns about 702 times per mile.

77 other sizes in this list are within 3% of that diameter.

Compare 225/55R19 with plausible swaps

Sizes within 3% of 28.74 in diameter

275/45R19 28.74 in (0.00%)
245/35R22 28.75 in (+0.03%)
285/30R22 28.73 in (−0.04%)
245/40R21 28.72 in (−0.10%)
215/75R16 28.70 in (−0.16%)
245/45R20 28.68 in (−0.22%)
315/35R20 28.68 in (−0.22%)
325/30R21 28.68 in (−0.23%)
275/40R20 28.66 in (−0.29%)
245/50R19 28.65 in (−0.34%)
285/35R21 28.85 in (+0.38%)
225/60R18 28.63 in (−0.40%)
245/55R18 28.61 in (−0.47%)
235/75R15 28.88 in (+0.47%)
275/35R21 28.58 in (−0.58%)
245/60R17 28.57 in (−0.59%)
245/65R16 28.54 in (−0.71%)
235/70R16 28.95 in (+0.73%)
295/30R22 28.97 in (+0.78%)
225/65R17 28.52 in (−0.79%)
285/40R20 28.98 in (+0.81%)
275/30R22 28.50 in (−0.86%)
235/65R17 29.03 in (+0.99%)
255/35R22 29.03 in (+0.99%)
255/40R21 29.03 in (+1.00%)
255/45R20 29.04 in (+1.01%)
255/50R19 29.04 in (+1.03%)
255/55R18 29.04 in (+1.04%)
255/60R17 29.05 in (+1.05%)
255/65R16 29.05 in (+1.07%)
265/50R18 28.43 in (−1.08%)
255/70R15 29.06 in (+1.08%)
225/70R16 28.40 in (−1.19%)
265/45R19 28.39 in (−1.23%)
285/45R19 29.10 in (+1.23%)
235/60R18 29.10 in (+1.25%)
295/35R21 29.13 in (+1.34%)
265/40R20 28.35 in (−1.38%)
235/45R20 28.33 in (−1.45%)
235/55R19 29.18 in (+1.51%)
265/35R21 28.30 in (−1.53%)
295/40R19 28.29 in (−1.58%)
225/75R15 28.29 in (−1.59%)
265/30R22 28.26 in (−1.68%)
235/50R19 28.25 in (−1.71%)
305/30R21 28.20 in (−1.88%)
225/75R16 29.29 in (+1.89%)
295/40R20 29.29 in (+1.90%)
265/35R22 29.30 in (+1.94%)
235/55R18 28.18 in (−1.97%)
235/45R21 29.33 in (+2.03%)
265/40R21 29.35 in (+2.10%)
295/35R20 28.13 in (−2.14%)
205/75R16 28.11 in (−2.22%)
235/60R17 28.10 in (−2.23%)
285/45R18 28.10 in (−2.25%)
265/45R20 29.39 in (+2.25%)
275/25R24 29.41 in (+2.33%)
265/50R19 29.43 in (+2.40%)
315/30R22 29.44 in (+2.42%)
255/50R18 28.04 in (−2.45%)
255/45R19 28.04 in (−2.47%)
255/40R20 28.03 in (−2.48%)
235/65R16 28.03 in (−2.49%)
255/35R21 28.03 in (−2.49%)
255/30R22 28.02 in (−2.51%)
245/75R15 29.47 in (+2.52%)
215/65R17 28.00 in (−2.57%)
245/70R16 29.50 in (+2.64%)
285/40R19 27.98 in (−2.67%)
295/30R21 27.97 in (−2.70%)
265/60R17 29.52 in (+2.70%)
235/70R15 27.95 in (−2.75%)
245/65R17 29.54 in (+2.77%)
245/60R18 29.57 in (+2.89%)
265/70R15 29.61 in (+3.00%)
305/40R20 29.61 in (+3.00%)

Open 225/55R19 in the tire size calculator

Source: Calculated from standard tire geometry formulas. Verified 2026-09-27. How these numbers are calculated.