My Tire Guide

245/45R19 tire size

A 245/45R19 tire stands 27.7 inches tall and 9.6 inches wide, with a 4.3-inch sidewall on a 19-inch rim.

27.7″OVERALL 27.7 IN · RIM 19 IN9.6″4.3″WIDTH · SIDEWALL
Overall height
27.7 in703 mm
Section width
9.6 in245 mm
Sidewall height
4.3 in110 mm
Rim diameter
19 in483 mm
Circumference
87.0 in2209 mm
Revolutions per mile
729453 per km
Inch size
27.7x9.6R19

Compare it with any other size in the tire size calculator.

Sizes you can swap to

These 19-inch sizes are within two width steps and 3% of a 245/45R19's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 225/50R19, 0.6% taller (0.18 in). Wider sizes also need room in the wheel well and a rim width that suits them.

SizeHeightWidthAt 60 mph
225/50R19+0.6%+0.18 in−20 mm60.4 mph
265/40R19−1.2%−0.33 in+20 mm59.3 mph
255/45R19+1.3%+0.35 in+10 mm60.8 mph
235/45R19−1.3%−0.35 in−10 mm59.2 mph
235/50R19+2.1%+0.57 in−10 mm61.2 mph
255/40R19−2.3%−0.65 in+10 mm58.6 mph
225/45R19−2.6%−0.71 in−20 mm58.5 mph
265/45R19+2.6%+0.71 in+20 mm61.5 mph

Plus and minus sizes

Changing rim size means changing the sidewall to keep the same overall height. On 17-inch or 18-inch or 20-inch or 21-inch rims, these are the closest matches to a 245/45R19.

SizeHeightWidthAt 60 mph
225/60R17−0.2%−0.05 in−20 mm59.9 mph
245/50R18−0.1%−0.04 in±0 mm59.9 mph
245/40R20+0.1%+0.04 in±0 mm60.1 mph
245/35R21+0.3%+0.07 in±0 mm60.2 mph

Other 19-inch sizes near 245/45R19

245 mm wide, other sidewalls

45 series, other widths

See the other sizes for this rim on 19-inch tire sizes.

Shop 245/45R19 tires

These open each store's own list of 245/45R19 tires, where you can filter by type, load and speed rating.

245/45R19 questions

How tall is a 245/45R19 tire?

About 27.7 inches (703 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.

What does 245/45R19 mean?

245 is the section width in millimetres (9.6 in). 45 means the sidewall is 45% of that width: 110 mm, or 4.3 in. R means radial construction, and 19 is the rim diameter in inches.

Can I use 265/40R19 instead of 245/45R19?

265/40R19 is 1.2% shorter (0.33 in) and 20 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 59.3 mph. Make sure the extra width clears the suspension and fender liner at full lock.

What is 245/45R19 in inches?

In inch terms it is 27.7x9.6R19: 27.7 inches tall, 9.6 inches wide, for a 19-inch rim.

How many revolutions per mile does a 245/45R19 make?

About 729 turns per mile, worked out from its unloaded circumference of 87.0 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.