315/70R17 tire size
A 315/70R17 tire stands 34.4 inches tall and 12.4 inches wide, with a 8.7-inch sidewall on a 17-inch rim.
- Overall height
- 34.4 in873 mm
- Section width
- 12.4 in315 mm
- Sidewall height
- 8.7 in221 mm
- Rim diameter
- 17 in432 mm
- Circumference
- 108.0 in2742 mm
- Revolutions per mile
- 587365 per km
- Inch size
- 34.4x12.4R17
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 315/70R17's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 295/75R17, 0.2% taller (0.06 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 315/70R17.
LT315/70R17
LT315/70R17 is the light-truck version of this size, with the same nominal height and width: 34.4 by 12.4 inches. LT tires have stiffer construction for heavier loads and towing, run at higher pressures and carry a load range (C, D, E or F) instead of a passenger load rating. Fit LT tires where the door placard calls for them or the truck works hard; on a light-duty vehicle they ride firmer than the P-metric size.
Other 17-inch sizes near 315/70R17
315 mm wide, other sidewalls
70 series, other widths
See the other sizes for this rim on 17-inch tire sizes.
Shop 315/70R17 tires
These open each store's own list of 315/70R17 tires, where you can filter by type, load and speed rating.
315/70R17 questions
How tall is a 315/70R17 tire?
About 34.4 inches (873 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.
What does 315/70R17 mean?
315 is the section width in millimetres (12.4 in). 70 means the sidewall is 70% of that width: 221 mm, or 8.7 in. R means radial construction, and 17 is the rim diameter in inches.
Is LT315/70R17 the same size as 315/70R17?
Yes, they share the same nominal size: 34.4 inches tall and 12.4 inches wide. The difference is construction. LT tires are built for heavier loads at higher pressures and carry a load range letter (C, D, E or F); they ride firmer than passenger tires.
Can I use 295/75R17 instead of 315/70R17?
295/75R17 is 0.2% taller (0.06 in) and 20 mm narrower, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.1 mph.
What is 315/70R17 in inches?
In inch terms it is 34.4x12.4R17: 34.4 inches tall, 12.4 inches wide, for a 17-inch rim.
How many revolutions per mile does a 315/70R17 make?
About 587 turns per mile, worked out from its unloaded circumference of 108.0 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.