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295/35R18 in inches

A 295/35R18 tire is 26.1″ tall and 11.6″ wide, and fits a 18″ wheel. In inches it is written 26.1×11.6R18.

Diameter26.13″
Width11.61″
Sidewall4.06″
295/35R18 drawn to scale: 26.13 inch diameter, 4.06 inch sidewall, 18 inch wheel, 11.61 inch tread width18″ wheel4.06″26.13″ overall11.61″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 295/35R18 tires really are

Heights published by BFGoodrich and Michelin for all 4 tires in this size. Their published revolutions per mile work out to 25.3″ under load (below).

Real 295/35R18 tires measure 26.10″, against 26.13″ from the size code. Every one runs shorter than the size code.

Height under load25.3″

Published revs per mile (797) mean the tire rolls like a 25.3″ tire on the vehicle. Use this for speedometer calibration.

Weight spread28.5–29.6 lb

The lightest (Michelin Pilot Sport PS2, SL) is 1.1 lb lighter per corner than the heaviest (BFGoodrich g-Force Rival S, SL).

4 tires in 295/35R18

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Sport PS2PerformanceSL · 99(Y)26.1028.58.51,709797Spec page
Michelin Pilot Super SportPerformanceXL · 103(Y)26.1029.110.01,929797Spec page
BFGoodrich g-Force Rival SPerformanceSL · 99W26.1029.67.21,709797Spec page
BFGoodrich g-Force Rival+PerformanceSL · 99W26.1029.67.21,709797Spec page

Is 295/35R18 a 26-inch tire?

≈26″

Yes. The size code works out to 26.13″, and the 4 tires here publish 26.10″, so people call it a 26.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 295/35R18Difference
215/45R1825.62-0.51″-2.0%
245/40R1825.72-0.41″-1.6%
285/35R1825.85-0.28″-1.1%
335/30R1825.91-0.22″-0.8%
225/45R1825.97-0.16″-0.6%
255/40R1826.03-0.10″-0.4%
235/45R1826.33+0.20″+0.8%
265/40R1826.35+0.22″+0.8%
305/35R1826.41+0.28″+1.1%
215/50R1826.46+0.33″+1.3%

How to read 295/35R18

How to read any tire size

295/35R18 99W as printed on the tire sidewall, with each part numbered295/35R18 99W123456
How 295/35R18 99W is printed on the sidewall. It's the most common code among the 4 tires here (2 of them); tires in this size come in other load and speed ratings too.
1295Section width

295 mm across the widest point, or 11.61 inches. Every 295 size

235Aspect ratio

A percentage, not a measurement: the sidewall is 35% as tall as the tire is wide, which is 103.3 mm or 4.06 inches.

3RConstruction

Radial construction.

418Wheel diameter

Mounts on a 18-inch wheel. Approved wheel widths run 10.0″ to 11.5″.

599Load index

Each tire carries up to 1,709 lb (775 kg) at its maximum pressure.

6WSpeed rating

Rated for up to 168 mph sustained.

SpecificationInchesMetric
Overall diameter26.13664 mm
Section width11.61295 mm
Sidewall height4.06103.3 mm
Circumference82.12,085 mm
Revolutions per mile (calculated, unloaded)771.8480 per km
Revolutions per mile (published by manufacturers)797495 per km
Approved wheel width10.0–11.5254–292 mm

Speedometer error after switching to 295/35R18

Your actual speed– mph

Questions about 295/35R18

What is 295/35R18 in inches?

26.13 inches tall, 11.61 inches wide, on a 18-inch wheel. Written in inches, that is roughly 26.1×11.6R18.

How much does a 295/35R18 tire weigh?

Between 28.5 lb and 29.6 lb for the 4 tires listed here. The lightest is the Michelin Pilot Sport PS2 (SL); the heaviest is the BFGoodrich g-Force Rival S (SL).

What wheel width do I need for 295/35R18?

Manufacturers approve 10.0–11.5″ wide wheels for this size.

How many revolutions per mile does a 295/35R18 make?

Published figures run 797 revolutions per mile. The calculated figure is 771.8, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 295/35R18 than 255/40R18?

0.10 inches taller on paper (26.13″ vs 26.03″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.