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335/25R20 in inches

A 335/25R20 tire is 26.6″ tall and 13.2″ wide, and fits a 20″ wheel. In inches it is written 26.6×13.2R20.

Diameter26.59″
Width13.19″
Sidewall3.30″
335/25R20 drawn to scale: 26.59 inch diameter, 3.30 inch sidewall, 20 inch wheel, 13.19 inch tread width20″ wheel3.30″26.59″ overall13.19″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 335/25R20 tires really are

Heights published by Michelin for all 3 tires in this size. Their published revolutions per mile work out to 25.8″ under load (below).

Real 335/25R20 tires measure 26.60″, against 26.59″ from the size code. They run both taller and shorter than the size code.

Height under load25.8″

Published revs per mile (782) mean the tire rolls like a 25.8″ tire on the vehicle. Use this for speedometer calibration.

Weight spread32.1–35.5 lb

The lightest (Michelin Pilot Sport Cup 2, SL) is 3.4 lb lighter per corner than the heaviest (Michelin Pilot Sport All-Season 4, SL).

3 tires in 335/25R20

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Sport Cup 2PerformanceSL · 99(Y)26.6032.15.71,709782Spec page
Michelin Pilot Super SportPerformanceSL · 99(Y)26.6033.77.81,709782Spec page
Michelin Pilot Sport All-Season 4PerformanceSL · 99(Y)26.6035.510.01,709782Spec page

Is 335/25R20 a 27-inch tire?

≈27″

Close. The size code works out to 26.59″, and the 3 tires here publish 26.60″, so people call it a 27.

All 27-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 335/25R20Difference
225/35R2026.20-0.39″-1.5%
265/30R2026.26-0.33″-1.3%
325/25R2026.40-0.20″-0.7%
235/35R2026.48-0.12″-0.4%
275/30R2026.50-0.10″-0.4%
285/30R2026.73+0.14″+0.5%
245/35R2026.75+0.16″+0.6%
295/30R2026.97+0.37″+1.4%
255/35R2027.03+0.43″+1.6%
225/40R2027.09+0.49″+1.9%

How to read 335/25R20

How to read any tire size

P335/25R20 99Y as printed on the tire sidewall, with each part numberedP335/25R20 99Y1234567
How P335/25R20 99Y is printed on the sidewall. It's the most common code among the 3 tires here (2 of them); tires in this size come in other load and speed ratings too.
1PP-metric

Marks a P-metric (passenger) tire. Sizes with no letter are Euro-metric.

2335Section width

335 mm across the widest point, or 13.19 inches. Every 335 size

325Aspect ratio

A percentage, not a measurement: the sidewall is 25% as tall as the tire is wide, which is 83.8 mm or 3.30 inches.

4RConstruction

Radial construction.

520Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 11.5″ to 12.5″.

699Load index

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

7YSpeed rating

Rated for up to 186 mph sustained.

SpecificationInchesMetric
Overall diameter26.59676 mm
Section width13.19335 mm
Sidewall height3.3083.8 mm
Circumference83.52,122 mm
Revolutions per mile (calculated, unloaded)758.4471 per km
Revolutions per mile (published by manufacturers)782486 per km
Approved wheel width11.5–12.5292–318 mm

Speedometer error after switching to 335/25R20

Your actual speed– mph

Questions about 335/25R20

What is 335/25R20 in inches?

26.59 inches tall, 13.19 inches wide, on a 20-inch wheel. Written in inches, that is roughly 26.6×13.2R20.

How much does a 335/25R20 tire weigh?

Between 32.1 lb and 35.5 lb for the 3 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 (SL); the heaviest is the Michelin Pilot Sport All-Season 4 (SL).

What wheel width do I need for 335/25R20?

Manufacturers approve 11.5–12.5″ wide wheels for this size.

How many revolutions per mile does a 335/25R20 make?

Published figures run 782 revolutions per mile. The calculated figure is 758.4, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 335/25R20 than 275/30R20?

0.10 inches taller on paper (26.59″ vs 26.50″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.