tireheight.com

255/60R17 in inches

A 255/60R17 tire is 29.0″ tall and 10.0″ wide, and fits a 17″ wheel. In inches it is written 29.0×10.0R17.

Diameter29.05″
Width10.04″
Sidewall6.02″
255/60R17 drawn to scale: 29.05 inch diameter, 6.02 inch sidewall, 17 inch wheel, 10.04 inch tread width17″ wheel6.02″29.05″ overall10.04″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 255/60R17 tires really are

Heights published by Toyo for all 2 tires in this size. Their published revolutions per mile work out to 28.2″ under load (below).

Real 255/60R17 tires measure 29.05″, against 29.05″ from the size code. They run both taller and shorter than the size code.

Height under load28.2″

Published revs per mile (715) mean the tire rolls like a 28.2″ tire on the vehicle. Use this for speedometer calibration.

Weight spread35.3–36.0 lb

The lightest (Toyo Proxes ST III, XL) is 0.7 lb lighter per corner than the heaviest (Toyo OPEN COUNTRY Q/T, SL).

2 tires in 255/60R17

Sort by the spec you care about.

LoadRevs/miSource
Toyo Proxes ST IIIPerformanceXL · 110V29.0535.310.12,337715Spec page
Toyo OPEN COUNTRY Q/TAll-seasonSL · 106V29.0536.012.22,094715Spec page

Is 255/60R17 a 29-inch tire?

≈29″

Yes. The size code works out to 29.05″, and the 2 tires here publish 29.05″, so people call it a 29.

All 29-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 255/60R17Difference
225/65R1728.52-0.53″-1.8%
245/60R1728.57-0.47″-1.6%
275/55R1728.91-0.14″-0.5%
235/70R1628.95-0.09″-0.3%
235/65R1729.03-0.02″-0.1%
255/55R1829.04-0.00″-0.0%
255/65R1629.05+0.00″+0.0%
235/60R1829.10+0.06″+0.2%
265/60R1729.52+0.47″+1.6%
245/65R1729.54+0.49″+1.7%

How to read 255/60R17

How to read any tire size

255/60R17 106V as printed on the tire sidewall, with each part numbered255/60R17 106V123456
How 255/60R17 106V 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.
1255Section width

255 mm across the widest point, or 10.04 inches. Every 255 size

260Aspect ratio

A percentage, not a measurement: the sidewall is 60% as tall as the tire is wide, which is 153.0 mm or 6.02 inches.

3RConstruction

Radial construction.

417Wheel diameter

Mounts on a 17-inch wheel. Approved wheel widths run 7.0″ to 9.0″.

5106Load index

Each tire carries up to 2,094 lb (950 kg) at its maximum pressure.

6VSpeed rating

Rated for up to 149 mph sustained.

SpecificationInchesMetric
Overall diameter29.05738 mm
Section width10.04255 mm
Sidewall height6.02153.0 mm
Circumference91.32,318 mm
Revolutions per mile (calculated, unloaded)694.3431 per km
Revolutions per mile (published by manufacturers)715444 per km
Approved wheel width7.0–9.0178–229 mm

Speedometer error after switching to 255/60R17

Your actual speed– mph

Questions about 255/60R17

What is 255/60R17 in inches?

29.05 inches tall, 10.04 inches wide, on a 17-inch wheel. Written in inches, that is roughly 29.0×10.0R17.

How much does a 255/60R17 tire weigh?

Between 35.3 lb and 36.0 lb for the 2 tires listed here. The lightest is the Toyo Proxes ST III (XL); the heaviest is the Toyo OPEN COUNTRY Q/T (SL).

What wheel width do I need for 255/60R17?

Manufacturers approve 7.0–9.0″ wide wheels for this size.

How many revolutions per mile does a 255/60R17 make?

Published figures run 715 revolutions per mile. The calculated figure is 694.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 255/60R17 than 235/65R17?

0.02 inches taller on paper (29.05″ vs 29.03″), which raises the axle about 0.01″. Your speedometer will read about 0.1% slow.