tireheight.com

275/60R17 in inches

A 275/60R17 tire is 30.0″ tall and 10.8″ wide, and fits a 17″ wheel. In inches it is written 30.0×10.8R17.

Diameter29.99″
Width10.83″
Sidewall6.50″
275/60R17 drawn to scale: 29.99 inch diameter, 6.50 inch sidewall, 17 inch wheel, 10.83 inch tread width17″ wheel6.50″29.99″ overall10.83″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 275/60R17 tires really are

Heights published by General and Toyo for all 2 tires in this size. Their published revolutions per mile work out to 29.1″ under load (below).

Real 275/60R17 tires measure 30.00″, against 29.99″ from the size code. They run both taller and shorter than the size code.

Height under load29.1″

Published revs per mile (692–693) mean the tire rolls like a 29.1″ tire on the vehicle. Use this for speedometer calibration.

Weight spread36.5–36.7 lb

The lightest (Toyo Proxes ST III, SL) is 0.2 lb lighter per corner than the heaviest (General Grabber HTS60, SL).

2 tires in 275/60R17

Sort by the spec you care about.

LoadRevs/miSource
Toyo Proxes ST IIIPerformanceSL · 110V30.0036.510.12,337692Spec page
General Grabber HTS60TouringSL · 110T30.0036.712.02,337693Spec page

Is 275/60R17 a 30-inch tire?

≈30″

Yes. The size code works out to 29.99″, and the 2 tires here publish 30.00″, so people call it a 30.

All 30-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 275/60R17Difference
265/60R1729.52-0.47″-1.6%
245/65R1729.54-0.45″-1.5%
235/70R1729.95-0.04″-0.1%
235/65R1830.03+0.04″+0.1%
255/60R1830.05+0.06″+0.2%
255/65R1730.05+0.06″+0.2%
255/70R1630.06+0.06″+0.2%
225/75R1730.29+0.30″+1.0%
245/70R1730.50+0.51″+1.7%
265/65R1730.56+0.57″+1.9%

How to read 275/60R17

How to read any tire size

275/60R17 110T as printed on the tire sidewall, with each part numbered275/60R17 110T123456
How 275/60R17 110T is printed on the sidewall. It's the most common code among the 2 tires here (1 of them); tires in this size come in other load and speed ratings too.
1275Section width

275 mm across the widest point, or 10.83 inches. Every 275 size

260Aspect ratio

A percentage, not a measurement: the sidewall is 60% as tall as the tire is wide, which is 165.0 mm or 6.50 inches.

3RConstruction

Radial construction.

417Wheel diameter

Mounts on a 17-inch wheel. Approved wheel widths run 7.5″ to 9.5″.

5110Load index

Each tire carries up to 2,337 lb (1,060 kg) at its maximum pressure.

6TSpeed rating

Rated for up to 118 mph sustained.

SpecificationInchesMetric
Overall diameter29.99762 mm
Section width10.83275 mm
Sidewall height6.50165.0 mm
Circumference94.22,393 mm
Revolutions per mile (calculated, unloaded)672.4418 per km
Revolutions per mile (published by manufacturers)692–693430–431 per km
Approved wheel width7.5–9.5191–241 mm

Speedometer error after switching to 275/60R17

Your actual speed– mph

Questions about 275/60R17

What is 275/60R17 in inches?

29.99 inches tall, 10.83 inches wide, on a 17-inch wheel. Written in inches, that is roughly 30.0×10.8R17.

How much does a 275/60R17 tire weigh?

Between 36.5 lb and 36.7 lb for the 2 tires listed here. The lightest is the Toyo Proxes ST III (SL); the heaviest is the General Grabber HTS60 (SL).

What wheel width do I need for 275/60R17?

Manufacturers approve 7.5–9.5″ wide wheels for this size.

How many revolutions per mile does a 275/60R17 make?

Published figures run 692–693 revolutions per mile. The calculated figure is 672.4, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 275/60R17 than 235/70R17?

0.04 inches taller on paper (29.99″ vs 29.95″), which raises the axle about 0.02″. Your speedometer will read about 0.1% slow.