tireheight.com

175/70R13 in inches

A 175/70R13 tire is 22.6″ tall and 6.9″ wide, and fits a 13″ wheel. In inches it is written 22.6×6.9R13.

Diameter22.65″
Width6.89″
Sidewall4.82″
175/70R13 drawn to scale: 22.65 inch diameter, 4.82 inch sidewall, 13 inch wheel, 6.89 inch tread width13″ wheel4.82″22.65″ overall6.89″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 175/70R13 tires really are

Heights published by Toyo for the one tire in this size. Their published revolutions per mile work out to 22.0″ under load (below).

The one tire listed, the Toyo Observe G3-Ice, measures 22.68″: 0.03″ taller than the size code's 22.65″.

Height under load22.0″

Published revs per mile (916) mean the tire rolls like a 22.0″ tire on the vehicle. Use this for speedometer calibration.

1 tire in 175/70R13

Sort by the spec you care about.

LoadRevs/miSource
Toyo Observe G3-IceWinterSL · 82T22.6816.811.31,047916Spec page

Is 175/70R13 a 23-inch tire?

≈23″

Yes. The size code works out to 22.65″, and the 1 tire here publishes 22.68″, so people call it a 23.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 175/70R13Difference
225/45R1320.97-1.67″-7.4%
185/60R1321.74-0.91″-4.0%
205/60R1322.69+0.04″+0.2%
185/60R1422.74+0.09″+0.4%
175/65R1422.96+0.31″+1.4%
195/60R1423.21+0.57″+2.5%
185/65R1423.47+0.82″+3.6%
175/70R1423.65+1.00″+4.4%
215/60R1424.16+1.51″+6.7%
185/70R1424.20+1.55″+6.8%

How to read 175/70R13

How to read any tire size

175/70R13 82T as printed on the tire sidewall, with each part numbered175/70R13 82T123456
How 175/70R13 82T 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.
1175Section width

175 mm across the widest point, or 6.89 inches. Every 175 size

270Aspect ratio

A percentage, not a measurement: the sidewall is 70% as tall as the tire is wide, which is 122.5 mm or 4.82 inches.

3RConstruction

Radial construction.

413Wheel diameter

Mounts on a 13-inch wheel. Approved wheel widths run 4.5″ to 6.0″.

582Load index

Each tire carries up to 1,047 lb (475 kg) at its maximum pressure.

6TSpeed rating

Rated for up to 118 mph sustained.

SpecificationInchesMetric
Overall diameter22.65575 mm
Section width6.89175 mm
Sidewall height4.82122.5 mm
Circumference71.11,807 mm
Revolutions per mile (calculated, unloaded)890.6553 per km
Revolutions per mile (published by manufacturers)916569 per km
Approved wheel width4.5–6.0114–152 mm

Speedometer error after switching to 175/70R13

Your actual speed– mph

Questions about 175/70R13

What is 175/70R13 in inches?

22.65 inches tall, 6.89 inches wide, on a 13-inch wheel. Written in inches, that is roughly 22.6×6.9R13.

What wheel width do I need for 175/70R13?

Manufacturers approve 4.5–6.0″ wide wheels for this size.

How many revolutions per mile does a 175/70R13 make?

Published figures run 916 revolutions per mile. The calculated figure is 890.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 175/70R13 than 185/60R13?

0.91 inches taller on paper (22.65″ vs 21.74″), which raises the axle about 0.45″. Your speedometer will read about 4.2% slow.