tireheight.com

185/60R15 in inches

A 185/60R15 tire is 23.7″ tall and 7.3″ wide, and fits a 15″ wheel. In inches it is written 23.7×7.3R15.

Diameter23.74″
Width7.28″
Sidewall4.37″
185/60R15 drawn to scale: 23.74 inch diameter, 4.37 inch sidewall, 15 inch wheel, 7.28 inch tread width15″ wheel4.37″23.74″ overall7.28″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 185/60R15 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 12 tires in this size. Their published revolutions per mile work out to 23.0″ under load (below).

Real 185/60R15 tires measure 23.70–23.74″, against 23.74″ from the size code. They run both taller and shorter than the size code.

Height under load23.0″

Published revs per mile (875–876) mean the tire rolls like a 23.0″ tire on the vehicle. Use this for speedometer calibration.

Weight spread15.6–22.6 lb

The lightest (General ReliaTrek, SL) is 7.0 lb lighter per corner than the heaviest (Toyo Celsius Cargo, LT C).

12 tires in 185/60R15

Sort by the spec you care about.

LoadRevs/miSource
General ReliaTrekTouringSL · 84T23.7015.611.01,102875Spec page
General AltiMAX RT45TouringSL · 84T23.7016.611.01,102875Spec page
General AltiMAX RT45TouringSL · 84H23.7016.611.01,102875Spec page
General AltiMAX365 AWTouringSL · 84H23.7016.611.01,102875Spec page
Michelin X-Ice SnowWinterXL · 88H23.7416.610.51,235876Spec page
General AltiMAX Arctic XWinterXL · 88T23.7016.712.01,235875Spec page
Toyo Extensa A/S IIAll-seasonSL · 84H23.7417.711.01,102875Spec page
BFGoodrich Advantage ControlAll-seasonSL · 84H23.7418.611.51,102876Spec page
Toyo Observe G3-IceWinterSL · 84T23.7418.711.31,102875Spec page
Toyo Celsius IITouringSL · 84T23.7418.811.01,102875Spec page
General Grabber HD VanCommercialLT C · 94T23.7021.014.01,475875Spec page
Toyo Celsius CargoLT C · 94/92T23.7422.612.11,475875Spec page

Is 185/60R15 a 24-inch tire?

≈24″

Yes. The size code works out to 23.74″, and the 12 tires here publish 23.70–23.74″, so people call it a 24.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 185/60R15Difference
225/45R1522.97-0.77″-3.2%
185/55R1523.01-0.73″-3.1%
205/50R1523.07-0.67″-2.8%
195/55R1523.44-0.30″-1.2%
195/50R1623.68-0.06″-0.3%
225/50R1523.86+0.12″+0.5%
175/65R1523.96+0.22″+0.9%
195/60R1524.21+0.47″+2.0%
235/50R1524.25+0.51″+2.2%
185/65R1524.47+0.73″+3.1%

How to read 185/60R15

How to read any tire size

185/60R15 84T as printed on the tire sidewall, with each part numbered185/60R15 84T123456
How 185/60R15 84T is printed on the sidewall. It's the most common code among the 12 tires here (4 of them); tires in this size come in other load and speed ratings too.
1185Section width

185 mm across the widest point, or 7.28 inches. Every 185 size

260Aspect ratio

A percentage, not a measurement: the sidewall is 60% as tall as the tire is wide, which is 111.0 mm or 4.37 inches.

3RConstruction

Radial construction.

415Wheel diameter

Mounts on a 15-inch wheel. Approved wheel widths run 5.0″ to 6.5″.

584Load index

Each tire carries up to 1,102 lb (500 kg) at its maximum pressure.

6TSpeed rating

Rated for up to 118 mph sustained.

SpecificationInchesMetric
Overall diameter23.74603 mm
Section width7.28185 mm
Sidewall height4.37111.0 mm
Circumference74.61,894 mm
Revolutions per mile (calculated, unloaded)849.5528 per km
Revolutions per mile (published by manufacturers)875–876544 per km
Approved wheel width5.0–6.5127–165 mm

Speedometer error after switching to 185/60R15

Your actual speed– mph

Questions about 185/60R15

What is 185/60R15 in inches?

23.74 inches tall, 7.28 inches wide, on a 15-inch wheel. Written in inches, that is roughly 23.7×7.3R15.

How much does a 185/60R15 tire weigh?

Between 15.6 lb and 22.6 lb for the 12 tires listed here. The lightest is the General ReliaTrek (SL); the heaviest is the Toyo Celsius Cargo (LT C).

What wheel width do I need for 185/60R15?

Manufacturers approve 5.0–6.5″ wide wheels for this size.

How many revolutions per mile does a 185/60R15 make?

Published figures run 875–876 revolutions per mile. The calculated figure is 849.5, but manufacturers measure the tire under load, where it rolls on a smaller radius.

What is the difference between P185/60R15 and LT185/60R15?

Passenger tires (10 here) are built for passenger loads, with max loads of 1102–1235 lb. Light-truck tires (2 here) come in heavier load ranges with max loads of 1475 lb, and are usually heavier with deeper tread.

How much taller is 185/60R15 than 195/55R15?

0.30 inches taller on paper (23.74″ vs 23.44″), which raises the axle about 0.15″. Your speedometer will read about 1.3% slow.