TireSizeCheck

265/70R15

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%

Cross-section

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

265/70R15 compared with other sizes

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

Common questions

What is the overall diameter of a 265/70R15 tire?
A 265/70R15 tire is about 29.61″ (752 mm) in overall diameter, with a sidewall height of 185.5 mm and a circumference of 93.01″.
How many revolutions per mile does a 265/70R15 tire turn?
A 265/70R15 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 265/70R15 mean?
265 is the tread width in millimetres, 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.