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38×13.50R24 in inches

A 38×13.50R24 tire is 38.0″ tall and 13.5″ wide, and fits a 24″ wheel.

Diameter38.00″
Width13.50″
Sidewall7.00″
38×13.50R24 drawn to scale: 38.00 inch diameter, 7.00 inch sidewall, 24 inch wheel, 13.50 inch tread width24″ wheel7.00″38.00″ overall13.50″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 38×13.50R24 tires really are

Heights published by Toyo for the one tire in this size. Their published revolutions per mile work out to 36.4″ under load (below).

The one tire listed, the Toyo Open Country R/T Trail, measures 37.52″: 0.48″ shorter than the size code's 38.00″.

Height under load36.4″

Published revs per mile (554) mean the tire rolls like a 36.4″ tire on the vehicle. Use this for speedometer calibration.

1 tire in 38×13.50R24

Sort by the spec you care about.

LoadRevs/miSource
Toyo Open Country R/T TrailRugged-terrainLT F · 127Q37.5286.216.93,860554Spec page

Is a 38×13.50R24 really 38 inches tall?

37.5″

Shorter. The name says 38″, and the 1 tire here publishes 37.52″.

All 38-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 38×13.50R24Difference
375/40R2435.81-2.19″-5.8%
315/50R2436.40-1.60″-4.2%
37×13.50R2437.00-1.00″-2.6%
37×14.50R2437.00-1.00″-2.6%
38×15.50R2438.000.00″0.0%
40×15.50R2440.00+2.00″+5.3%

How to read 38×13.50R24

How to read any tire size

38X13.50R24LT 127Q as printed on the tire sidewall, with each part numbered38X13.50R24LT 127Q1234567
How 38X13.50R24LT 127Q is printed on the sidewall. It's the most common code among the 1 tire here; tires in this size come in other load and speed ratings too.
138Overall diameter

38 inches tall, measured on the approved wheel. Flotation sizes give every number in inches.

213.50Section width

13.50 inches across the widest point, or 343 mm.

3RConstruction

Radial construction.

424Wheel diameter

Mounts on a 24-inch wheel. Approved wheel widths run 9.5″ to 12.0″.

5LTLight truck

Marks a light truck (LT) tire.

6127Load index

Each tire carries up to 3,860 lb (1,750 kg) at its maximum pressure.

7QSpeed rating

Rated for up to 99 mph sustained.

FLoad range

Printed separately as "LOAD RANGE F": a 12-ply rating, inflated up to 95 psi (standard load-range table). The load range F tires here carry up to 3,860 lb each, as published.

SpecificationInchesMetric
Overall diameter38.00965 mm
Section width13.50343 mm
Sidewall height7.00177.8 mm
Circumference119.43,032 mm
Revolutions per mile (calculated, unloaded)530.7330 per km
Revolutions per mile (published by manufacturers)554344 per km
Approved wheel width9.5–12.0241–305 mm

Speedometer error after switching to 38×13.50R24

Your actual speed– mph

Questions about 38×13.50R24

What is 38×13.50R24 in inches?

38.00 inches tall, 13.50 inches wide, on a 24-inch wheel. Manufacturers publish 37.52 inches for the 1 tires listed here.

What wheel width do I need for 38×13.50R24?

Manufacturers approve 9.5–12.0″ wide wheels for this size.

How many revolutions per mile does a 38×13.50R24 make?

Published figures run 554 revolutions per mile. The calculated figure is 530.7, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 38×13.50R24 than 37×14.50R24?

1.00 inches taller on paper (38.00″ vs 37.00″), which raises the axle about 0.50″. Your speedometer will read about 2.7% slow.