tireheight.com

235/35R20 in inches

A 235/35R20 tire is 26.5″ tall and 9.3″ wide, and fits a 20″ wheel. In inches it is written 26.5×9.3R20.

Diameter26.48″
Width9.25″
Sidewall3.24″
235/35R20 drawn to scale: 26.48 inch diameter, 3.24 inch sidewall, 20 inch wheel, 9.25 inch tread width20″ wheel3.24″26.48″ overall9.25″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 235/35R20 tires really are

Heights published by BFGoodrich, Michelin and Toyo for all 8 tires in this size. Their published revolutions per mile work out to 25.7″ under load (below).

Real 235/35R20 tires measure 26.46–26.60″, against 26.48″ from the size code. Most run taller than the size code (6 of 8).

  1. Michelin Pilot Sport All-Season 426.60″ +0.12″
  2. Michelin Pilot Sport 4 S · 326.50″ +0.02″
  3. Michelin Pilot Sport Cup 2 Connect26.50″ +0.02″
  4. Toyo Proxes Sport 226.50″ +0.02″
  5. BFGoodrich g-Force Phenom T/A26.46″ −0.02″
  6. Michelin Pilot Alpin PA426.46″ −0.02″
Each bar runs from the size code's 26.48″ (the orange line) to the model's published height. The track spans 1.0″. Where a model comes in several load ranges, the darker part shows its range of heights; the number after the name is how many versions it comes in.
Height under load25.7″

Published revs per mile (785–786) mean the tire rolls like a 25.7″ tire on the vehicle. Use this for speedometer calibration.

Weight spread22.8–25.2 lb

The lightest (Michelin Pilot Sport Cup 2 Connect, XL) is 2.4 lb lighter per corner than the heaviest (BFGoodrich g-Force Phenom T/A, XL).

8 tires in 235/35R20

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Sport Cup 2 ConnectPerformanceXL · 92(Y)26.5022.87.21,389786Spec page
Michelin Pilot Alpin PA4WinterXL · 92V26.4623.010.51,389786Spec page
Michelin Pilot Sport 4 SPerformanceXL · 92(Y)26.5023.19.51,389786Spec page
Toyo Proxes Sport 2PerformanceXL · 92(Y)26.5023.18.91,389785Spec page
Michelin Pilot Sport 4 SPerformanceXL · 92(Y)26.5023.39.51,389786Spec page
Michelin Pilot Sport 4 SPerformanceXL · 92Y26.5024.69.01,389786Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 92Y26.6024.710.01,389786Spec page
BFGoodrich g-Force Phenom T/APerformanceXL · 92Y26.4625.29.01,389786Spec page

Is 235/35R20 a 27-inch tire?

≈27″

Close. The size code works out to 26.48″, and the 8 tires here publish 26.46–26.60″, 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 235/35R20Difference
305/25R2026.00-0.47″-1.8%
255/30R2026.02-0.45″-1.7%
225/35R2026.20-0.28″-1.0%
265/30R2026.26-0.22″-0.8%
325/25R2026.40-0.08″-0.3%
275/30R2026.50+0.02″+0.1%
335/25R2026.59+0.12″+0.4%
285/30R2026.73+0.26″+1.0%
245/35R2026.75+0.28″+1.0%
295/30R2026.97+0.49″+1.9%

How to read 235/35R20

How to read any tire size

235/35R20 92Y as printed on the tire sidewall, with each part numbered235/35R20 92Y123456
How 235/35R20 92Y is printed on the sidewall. It's the most common code among the 8 tires here (4 of them); tires in this size come in other load and speed ratings too.
1235Section width

235 mm across the widest point, or 9.25 inches. Every 235 size

235Aspect ratio

A percentage, not a measurement: the sidewall is 35% as tall as the tire is wide, which is 82.3 mm or 3.24 inches.

3RConstruction

Radial construction.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 8.0″ to 9.5″.

592Load index

Each tire carries up to 1,389 lb (630 kg) at its maximum pressure.

6YSpeed rating

Rated for up to 186 mph sustained.

XLExtra load

Printed after the size.

SpecificationInchesMetric
Overall diameter26.48672 mm
Section width9.25235 mm
Sidewall height3.2482.3 mm
Circumference83.22,113 mm
Revolutions per mile (calculated, unloaded)761.7473 per km
Revolutions per mile (published by manufacturers)785–786488 per km
Approved wheel width8.0–9.5203–241 mm

Speedometer error after switching to 235/35R20

Your actual speed– mph

Questions about 235/35R20

What is 235/35R20 in inches?

26.48 inches tall, 9.25 inches wide, on a 20-inch wheel. Written in inches, that is roughly 26.5×9.3R20.

How much does a 235/35R20 tire weigh?

Between 22.8 lb and 25.2 lb for the 8 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 Connect (XL); the heaviest is the BFGoodrich g-Force Phenom T/A (XL).

What wheel width do I need for 235/35R20?

Manufacturers approve 8.0–9.5″ wide wheels for this size.

How many revolutions per mile does a 235/35R20 make?

Published figures run 785–786 revolutions per mile. The calculated figure is 761.7, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 235/35R20 than 325/25R20?

0.08 inches taller on paper (26.48″ vs 26.40″), which raises the axle about 0.04″. Your speedometer will read about 0.3% slow.