215/70R15 tire size

A 215/70R15 tire is 26.9 inches (682 mm) tall and 8.5 inches (215 mm) wide, and fits a 15-inch wheel. In inch sizing it is about a 26.9x8.5R15.

Overall diameter26.85in682 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
245/35R20	26.8″	−0.4%	9.6″	3.4″	20″
225/55R17	26.7″	−0.4%	8.9″	4.9″	17″
225/45R19	27.0″	+0.5%	8.9″	4.0″	19″
245/40R19	26.7″	−0.5%	9.6″	3.9″	19″
215/65R16	27.0″	+0.6%	8.5″	5.5″	16″
215/75R14	26.7″	−0.6%	8.5″	6.3″	14″
245/45R18	26.7″	−0.6%	9.6″	4.3″	18″
255/35R20	27.0″	+0.7%	10.0″	3.5″	20″
255/40R19	27.0″	+0.7%	10.0″	4.0″	19″
255/45R18	27.0″	+0.7%	10.0″	4.5″	18″
275/40R18	26.7″	−0.7%	10.8″	4.3″	18″
225/60R16	26.6″	−0.8%	8.9″	5.3″	16″

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

215: Section width: 215 mm (8.5 in) from sidewall to sidewall.
70: Aspect ratio: the sidewall is 70% as tall as the tire is wide, 151 mm (5.9 in).
R: Radial construction, used by almost every modern tire.
15: Fits a 15-inch wheel.

215/70R15 is about 26.9 inches tall and 8.5 inches wide, on a 15-inch wheel, roughly a 26.9x8.5R15 in inch sizing.

Yes. At 26.9 inches it is sold and fitted as a 27-inch tire.

245/35R20, 225/55R17, 225/45R19 are the closest common sizes, all within 0.5% of its diameter, so the speedometer stays close to accurate.

215/75R15 is 3.2% taller, so at an indicated 60 mph you would really be doing 61.9 mph. Compare 215/70R15 and 215/75R15.

About 751 per mile (467 per km), from a 84.4-inch circumference.