My Tire Guide

245/75R17 tire size

A 245/75R17 tire stands 31.5 inches tall and 9.6 inches wide, with a 7.2-inch sidewall on a 17-inch rim.

31.5″OVERALL 31.5 IN · RIM 17 IN9.6″7.2″WIDTH · SIDEWALL
Overall height
31.5 in799 mm
Section width
9.6 in245 mm
Sidewall height
7.2 in184 mm
Rim diameter
17 in432 mm
Circumference
98.9 in2511 mm
Revolutions per mile
641398 per km
Inch size
31.5x9.6R17

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 245/75R17's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 265/70R17, 0.4% taller (0.14 in). Wider sizes also need room in the wheel well and a rim width that suits them.

SizeHeightWidthAt 60 mph
265/70R17+0.4%+0.14 in+20 mm60.3 mph
255/70R17−1.3%−0.41 in+10 mm59.2 mph
255/75R17+1.9%+0.59 in+10 mm61.1 mph
235/75R17−1.9%−0.59 in−10 mm58.9 mph
265/65R17−2.9%−0.91 in+20 mm58.3 mph

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 245/75R17.

SizeHeightWidthAt 60 mph
275/75R15−0.7%−0.23 in+30 mm59.6 mph
265/75R16+0.6%+0.18 in+20 mm60.3 mph
245/70R18+0.1%+0.04 in±0 mm60.1 mph
265/60R19+0.2%+0.05 in+20 mm60.1 mph

245/75R17 compared

LT245/75R17

LT245/75R17 is the light-truck version of this size, with the same nominal height and width: 31.5 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 245/75R17

245 mm wide, other sidewalls

75 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 245/75R17 tires

These open each store's own list of 245/75R17 tires, where you can filter by type, load and speed rating.

245/75R17 questions

How tall is a 245/75R17 tire?

About 31.5 inches (799 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.

What does 245/75R17 mean?

245 is the section width in millimetres (9.6 in). 75 means the sidewall is 75% of that width: 184 mm, or 7.2 in. R means radial construction, and 17 is the rim diameter in inches.

Is LT245/75R17 the same size as 245/75R17?

Yes, they share the same nominal size: 31.5 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 265/70R17 instead of 245/75R17?

265/70R17 is 0.4% taller (0.14 in) and 20 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.3 mph. Make sure the extra width clears the suspension and fender liner at full lock.

What is 245/75R17 in inches?

In inch terms it is 31.5x9.6R17: 31.5 inches tall, 9.6 inches wide, for a 17-inch rim.

How many revolutions per mile does a 245/75R17 make?

About 641 turns per mile, worked out from its unloaded circumference of 98.9 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.