245/70R17 tire size
A 245/70R17 tire stands 30.5 inches tall and 9.6 inches wide, with a 6.8-inch sidewall on a 17-inch rim.
- Overall height
- 30.5 in775 mm
- Section width
- 9.6 in245 mm
- Sidewall height
- 6.8 in172 mm
- Rim diameter
- 17 in432 mm
- Circumference
- 95.8 in2434 mm
- Revolutions per mile
- 661411 per km
- Inch size
- 30.5x9.6R17
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 245/70R17's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 265/65R17, 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 245/70R17.
245/70R17 compared
LT245/70R17
LT245/70R17 is the light-truck version of this size, with the same nominal height and width: 30.5 by 9.6 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 245/70R17
245 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 245/70R17 tires
These open each store's own list of 245/70R17 tires, where you can filter by type, load and speed rating.
245/70R17 questions
How tall is a 245/70R17 tire?
About 30.5 inches (775 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.
What does 245/70R17 mean?
245 is the section width in millimetres (9.6 in). 70 means the sidewall is 70% of that width: 172 mm, or 6.8 in. R means radial construction, and 17 is the rim diameter in inches.
Is LT245/70R17 the same size as 245/70R17?
Yes, they share the same nominal size: 30.5 inches tall and 9.6 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 265/65R17 instead of 245/70R17?
265/65R17 is 0.2% taller (0.06 in) and 20 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.1 mph. Make sure the extra width clears the suspension and fender liner at full lock.
What is 245/70R17 in inches?
In inch terms it is 30.5x9.6R17: 30.5 inches tall, 9.6 inches wide, for a 17-inch rim.
How many revolutions per mile does a 245/70R17 make?
About 661 turns per mile, worked out from its unloaded circumference of 95.8 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.