255/70R17 tire size
A 255/70R17 tire stands 31.1 inches tall and 10.0 inches wide, with a 7.0-inch sidewall on a 17-inch rim.
- Overall height
- 31.1 in789 mm
- Section width
- 10.0 in255 mm
- Sidewall height
- 7.0 in179 mm
- Rim diameter
- 17 in432 mm
- Circumference
- 97.6 in2478 mm
- Revolutions per mile
- 649404 per km
- Inch size
- 31.1x10.0R17
Compare it with any other size in the tire size calculator.
Sizes you can swap to
These 17-inch sizes are within two width steps and 3% of a 255/70R17's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 275/65R17, 0.1% taller (0.02 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 15-inch or 16-inch or 18-inch or 19-inch rims, these are the closest matches to a 255/70R17.
Other 17-inch sizes near 255/70R17
255 mm wide, other sidewalls
70 series, other widths
See the other sizes for this rim on 17-inch tire sizes, or other tires about this tall on 31-inch tires.
Shop 255/70R17 tires
These open each store's own list of 255/70R17 tires, where you can filter by type, load and speed rating.
255/70R17 questions
How tall is a 255/70R17 tire?
About 31.1 inches (789 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.
What does 255/70R17 mean?
255 is the section width in millimetres (10.0 in). 70 means the sidewall is 70% of that width: 179 mm, or 7.0 in. R means radial construction, and 17 is the rim diameter in inches.
Can I use 275/65R17 instead of 255/70R17?
275/65R17 is 0.1% taller (0.02 in) and 20 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.0 mph. Make sure the extra width clears the suspension and fender liner at full lock.
What is 255/70R17 in inches?
In inch terms it is 31.1x10.0R17: 31.1 inches tall, 10.0 inches wide, for a 17-inch rim.
How many revolutions per mile does a 255/70R17 make?
About 649 turns per mile, worked out from its unloaded circumference of 97.6 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.