My Tire Guide

295/40R18 tire size

A 295/40R18 tire stands 27.3 inches tall and 11.6 inches wide, with a 4.6-inch sidewall on an 18-inch rim.

27.3″OVERALL 27.3 IN · RIM 18 IN11.6″4.6″WIDTH · SIDEWALL
Overall height
27.3 in693 mm
Section width
11.6 in295 mm
Sidewall height
4.6 in118 mm
Rim diameter
18 in457 mm
Circumference
85.7 in2178 mm
Revolutions per mile
739459 per km
Inch size
27.3x11.6R18

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

Sizes you can swap to

These 18-inch sizes are within two width steps and 3% of a 295/40R18's overall height, the usual limit before the speedometer, ABS and transmission notice. The closest is 305/40R18, 1.2% taller (0.31 in). Wider sizes also need room in the wheel well and a rim width that suits them.

SizeHeightWidthAt 60 mph
305/40R18+1.2%+0.31 in+10 mm60.7 mph
285/40R18−1.2%−0.31 in−10 mm59.3 mph
275/45R18+1.7%+0.45 in−20 mm61.0 mph
315/35R18−2.2%−0.61 in+20 mm58.7 mph
275/40R18−2.3%−0.63 in−20 mm58.6 mph
315/40R18+2.3%+0.63 in+20 mm61.4 mph
285/45R18+3.0%+0.81 in−10 mm61.8 mph

Plus and minus sizes

Changing rim size means changing the sidewall to keep the same overall height. On 16-inch or 17-inch or 19-inch or 20-inch rims, these are the closest matches to a 295/40R18.

SizeHeightWidthAt 60 mph
285/50R16−0.3%−0.07 in−10 mm59.8 mph
265/50R17+0.5%+0.14 in−30 mm60.3 mph
265/40R19+0.2%+0.06 in−30 mm60.1 mph
265/35R20+0.0%+0.01 in−30 mm60.0 mph

Other 18-inch sizes near 295/40R18

295 mm wide, other sidewalls

40 series, other widths

See the other sizes for this rim on 18-inch tire sizes.

Shop 295/40R18 tires

These open each store's own list of 295/40R18 tires, where you can filter by type, load and speed rating.

295/40R18 questions

How tall is a 295/40R18 tire?

About 27.3 inches (693 mm) from the ground to the top of the tread, unloaded. On the vehicle, carrying weight, it sits a little lower.

What does 295/40R18 mean?

295 is the section width in millimetres (11.6 in). 40 means the sidewall is 40% of that width: 118 mm, or 4.6 in. R means radial construction, and 18 is the rim diameter in inches.

Can I use 305/40R18 instead of 295/40R18?

305/40R18 is 1.2% taller (0.31 in) and 10 mm wider, which is inside the usual 3% rule. With it fitted, the speedometer shows 60 mph when you are doing 60.7 mph. Make sure the extra width clears the suspension and fender liner at full lock.

What is 295/40R18 in inches?

In inch terms it is 27.3x11.6R18: 27.3 inches tall, 11.6 inches wide, for an 18-inch rim.

How many revolutions per mile does a 295/40R18 make?

About 739 turns per mile, worked out from its unloaded circumference of 85.7 inches. Makers list slightly higher numbers for their own tires, because a loaded tire rolls on a smaller radius.