tireheight.com

37×14.50R20 in inches

A 37×14.50R20 tire is 37.0″ tall and 14.5″ wide, and fits a 20″ wheel.

Diameter37.00″
Width14.50″
Sidewall8.50″
37×14.50R20 drawn to scale: 37.00 inch diameter, 8.50 inch sidewall, 20 inch wheel, 14.50 inch tread width20″ wheel8.50″37.00″ overall14.50″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 37×14.50R20 tires really are

Heights published by Mickey Thompson for the one tire in this size.

The one tire listed, the Mickey Thompson Baja Boss M/T, measures 36.90″: 0.10″ shorter than the size code's 37.00″.

1 tire in 37×14.50R20

Sort by the spec you care about.

LoadRevs/miSource
Mickey Thompson Baja Boss M/TMud-terrainLT E · 128Q36.9089.021.03,970–Spec page

Is a 37×14.50R20 really 37 inches tall?

36.9″

Yes. The name says 37″, and the 1 tire here publishes 36.90″.

All 37-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 37×14.50R20Difference
35×11.50R2035.00-2.00″-5.4%
35×12.50R2035.00-2.00″-5.4%
295/65R2035.10-1.90″-5.1%
325/60R2035.35-1.65″-4.4%
285/70R2035.71-1.29″-3.5%
36×15.50R2036.00-1.00″-2.7%
37×12.50R2037.000.00″0.0%
37×13.50R2037.000.00″0.0%
38×13.50R2038.00+1.00″+2.7%
38×15.50R2038.00+1.00″+2.7%

How to read 37×14.50R20

How to read any tire size

37X14.50R20LT 128Q as printed on the tire sidewall, with each part numbered37X14.50R20LT 128Q1234567
How 37X14.50R20LT 128Q 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.
137Overall diameter

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

214.50Section width

14.50 inches across the widest point, or 368 mm.

3RConstruction

Radial construction.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 10.0″ to 13.0″.

5LTLight truck

Marks a light truck (LT) tire.

6128Load index

Each tire carries up to 3,970 lb (1,800 kg) at its maximum pressure.

7QSpeed rating

Rated for up to 99 mph sustained.

ELoad range

Printed separately as "LOAD RANGE E": a 10-ply rating, inflated up to 80 psi (standard load-range table). The load range E tires here carry up to 3,970 lb each, as published.

SpecificationInchesMetric
Overall diameter37.00940 mm
Section width14.50368 mm
Sidewall height8.50215.9 mm
Circumference116.22,952 mm
Revolutions per mile (calculated, unloaded)545.1339 per km
Approved wheel width10.0–13.0254–330 mm

Speedometer error after switching to 37×14.50R20

Your actual speed– mph

Questions about 37×14.50R20

What is 37×14.50R20 in inches?

37.00 inches tall, 14.50 inches wide, on a 20-inch wheel. Manufacturers publish 36.90 inches for the 1 tires listed here.

What wheel width do I need for 37×14.50R20?

Manufacturers approve 10.0–13.0″ wide wheels for this size.

How much taller is 37×14.50R20 than 36×15.50R20?

1.00 inches taller on paper (37.00″ vs 36.00″), which raises the axle about 0.50″. Your speedometer will read about 2.8% slow.