225/35R20 tire size

A 225/35R20 tire is 26.2 inches (666 mm) tall and 8.9 inches (225 mm) wide, and fits a 20-inch wheel. In inch sizing it is about a 26.2x8.9R20.

Overall diameter26.20in666 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
215/60R16	26.2″	−0.2%	8.5″	5.1″	16″
205/75R14	26.1″	−0.4%	8.1″	6.1″	14″
205/70R15	26.3″	+0.4%	8.1″	5.6″	15″
215/55R17	26.3″	+0.4%	8.5″	4.7″	17″
225/40R19	26.1″	−0.4%	8.9″	3.5″	19″
235/45R18	26.3″	+0.5%	9.3″	4.2″	18″
255/40R18	26.0″	−0.6%	10.0″	4.0″	18″
255/35R19	26.0″	−0.7%	10.0″	3.5″	19″
215/65R15	26.0″	−0.8%	8.5″	5.5″	15″
235/40R19	26.4″	+0.8%	9.3″	3.7″	19″
225/45R18	26.0″	−0.9%	8.9″	4.0″	18″
235/35R20	26.5″	+1.1%	9.3″	3.2″	20″

Within 3% of the original diameter is the range most tire shops treat as a direct swap. Check load index and clearance too.

225: Section width: 225 mm (8.9 in) from sidewall to sidewall.
35: Aspect ratio: the sidewall is 35% as tall as the tire is wide, 79 mm (3.1 in).
R: Radial construction, used by almost every modern tire.
20: Fits a 20-inch wheel.

225/35R20 is about 26.2 inches tall and 8.9 inches wide, on a 20-inch wheel, roughly a 26.2x8.9R20 in inch sizing.

Yes. At 26.2 inches it is sold and fitted as a 26-inch tire.

215/60R16, 205/75R14, 205/70R15 are the closest common sizes, all within 0.4% of its diameter, so the speedometer stays close to accurate.

255/35R20 is 3.2% taller, so at an indicated 60 mph you would really be doing 61.9 mph. Compare 225/35R20 and 255/35R20.

About 770 per mile (478 per km), from a 82.3-inch circumference.