255/75R15 tire size
A 255/75R15 tire stands 30.1 inches tall and 10.0 inches wide, with a 7.5-inch sidewall on a 15-inch rim.
- Overall height
- 30.1 in764 mm
- Section width
- 10.0 in255 mm
- Sidewall height
- 7.5 in191 mm
- Rim diameter
- 15 in381 mm
- Circumference
- 94.4 in2399 mm
- Revolutions per mile
- 671417 per km
- Inch size
- 30.1x10.0R15
Compare it with any other size in the tire size calculator.
Sizes you can swap to
These 15-inch sizes are within two width steps and 3% of a 255/75R15's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 275/70R15, 0.3% taller (0.10 in). Wider sizes also need room in the wheel well and a rim width that suits them.
Plus and minus sizes
Changing rim size means changing the sidewall to keep the same overall height. On 14-inch or 16-inch or 17-inch rims, these are the closest matches to a 255/75R15.
Other 15-inch sizes near 255/75R15
255 mm wide, other sidewalls
75 series, other widths
See the other sizes for this rim on 15-inch tire sizes.
Shop 255/75R15 tires
These open each store's own list of 255/75R15 tires, where you can filter by type, load and speed rating.
255/75R15 questions
How tall is a 255/75R15 tire?
About 30.1 inches (764 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.
What does 255/75R15 mean?
255 is the section width in millimetres (10.0 in). 75 means the sidewall is 75% of that width: 191 mm, or 7.5 in. R means radial construction, and 15 is the rim diameter in inches.
Can I use 275/70R15 instead of 255/75R15?
275/70R15 is 0.3% taller (0.10 in) and 20 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.2 mph. Make sure the extra width clears the suspension and fender liner at full lock.
What is 255/75R15 in inches?
In inch terms it is 30.1x10.0R15: 30.1 inches tall, 10.0 inches wide, for a 15-inch rim.
How many revolutions per mile does a 255/75R15 make?
About 671 turns per mile, worked out from its unloaded circumference of 94.4 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.