What is 265/70R15 in inches?

A 265/70R15 tire is 29.61 inches tall and 10.4 inches wide, with a 7.30-inch sidewall, mounted on a 15-inch wheel. In metric that is 752 mm tall and 265 mm wide. The circumference is 93.01 inches.

How tall is a 265/70R15 tire?

29.61 inches, or 752 mm. That is the overall diameter, wheel included. It turns about 681 times per mile, which is what your speedometer counts.

What do the numbers in 265/70R15 mean?

265 is the tread width in millimeters, 70 is the aspect ratio — the sidewall height as a percentage of the tread width — and 15 is the wheel diameter in inches. So the sidewall is 265 × 70% = 185.5 mm tall.

265/70R15

A 265/70R15 tire is 29.61 inches tall and 10.4 inches wide, with a 7.30-inch sidewall, mounted on a 15-inch wheel.

Overall diameter

29.61″

752 mm

Sidewall height

7.30″

185.5 mm

Tread width

265 mm

10.4″

Circumference

93.01″

7.8 ft

Revs per mile

681

423 per km

Wheel diameter

15″

aspect ratio 70%

Compare vs 195/65R15 Compare with a custom size

Cross-section

Overall diameter: 29.61″
Sidewall (each side): 7.30″
Wheel: 15″

265/70R15 in inches and millimeters

Every dimension of a 265/70R15, converted both ways. Calculated from the size code, accurate to about 1%.

Measurement	Inches	Millimeters
Overall diameter (height)	29.61″	752 mm
Tread width	10.4″	265 mm
Sidewall height	7.30″	185.5 mm
Wheel diameter	15″	381 mm
Circumference	93.01″	2362 mm

Nominal dimensions from the size code. A real tire varies by a few millimeters between manufacturers, and a loaded tire sits slightly shorter than its free diameter.

265/70R15 compared with other sizes

All 21 practical swaps involving 265/70R15 — diameter change, speedometer impact and a fit verdict for each.

265/70R15 → 235/75R15

235/75R15

Diameter +2.5% · Fitment not determined

265/75R15 → 265/70R15

265/75R15

Diameter +3.5% · Fitment not determined

235/75R15 → 265/70R15

235/75R15

Diameter −2.5% · Fitment not determined

245/65R17 → 265/70R15

245/65R17

Diameter −0.2% · Fitment not determined

245/70R16 → 265/70R15

245/70R16

Diameter −0.3% · Fitment not determined

225/75R16 → 265/70R15

225/75R16

Diameter −1.1% · Fitment not determined

255/65R17 → 265/70R15

255/65R17

Diameter +1.5% · Fitment not determined

255/70R16 → 265/70R15

255/70R16

Diameter +1.5% · Fitment not determined

235/65R17 → 265/70R15

235/65R17

Diameter −2.0% · Fitment not determined

265/65R17 → 265/70R15

265/65R17

Diameter +3.2% · Fitment not determined

265/70R16 → 265/70R15

265/70R16

Diameter +3.4% · Fitment not determined

235/70R16 → 265/70R15

235/70R16

Diameter −2.2% · Fitment not determined

245/75R16 → 265/70R15

245/75R16

Diameter +2.9% · Fitment not determined

245/70R17 → 265/70R15

245/70R17

Diameter +3.0% · Fitment not determined

225/65R17 → 265/70R15

225/65R17

Diameter −3.7% · Fitment not determined

265/70R15 → 265/75R15

265/75R15

Diameter −3.4% · Fitment not determined

265/70R15 → 225/75R16

225/75R16

Diameter +1.1% · Fitment not determined

265/70R15 → 245/70R16

245/70R16

Diameter +0.3% · Fitment not determined

265/70R15 → 255/70R16

255/70R16

Diameter −1.5% · Fitment not determined

265/70R15 → 245/65R17

245/65R17

Diameter +0.2% · Fitment not determined

265/70R15 → 195/65R15

195/65R15

Diameter +18.5% · Fitment not determined

Common questions

What is 265/70R15 in inches?: A 265/70R15 tire is 29.61 inches tall and 10.4 inches wide, with a 7.30-inch sidewall, mounted on a 15-inch wheel. In metric that is 752 mm tall and 265 mm wide. The circumference is 93.01 inches.
How tall is a 265/70R15 tire?: 29.61 inches, or 752 mm. That is the overall diameter, wheel included. It turns about 681 times per mile, which is what your speedometer counts.
What do the numbers in 265/70R15 mean?: 265 is the tread width in millimeters, 70 is the aspect ratio — the sidewall height as a percentage of the tread width — and 15 is the wheel diameter in inches. So the sidewall is 265 × 70% = 185.5 mm tall.