tireheight.com

245/50R17 in inches

A 245/50R17 tire is 26.6″ tall and 9.6″ wide, and fits a 17″ wheel. In inches it is written 26.6×9.6R17.

Diameter26.65″
Width9.65″
Sidewall4.82″
245/50R17 drawn to scale: 26.65 inch diameter, 4.82 inch sidewall, 17 inch wheel, 9.65 inch tread width17″ wheel4.82″26.65″ overall9.65″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 245/50R17 tires really are

Heights published by General, Michelin and Toyo for all 4 tires in this size. Their published revolutions per mile work out to 25.8–25.9″ under load (below).

Real 245/50R17 tires measure 26.60–26.69″, against 26.65″ from the size code. They run both taller and shorter than the size code.

Height under load25.8–25.9″

Published revs per mile (778–782) mean the tire rolls like a 25.8–25.9″ tire on the vehicle. Use this for speedometer calibration.

Weight spread25.7–28.6 lb

The lightest (General G-MAX AS07, SL) is 2.9 lb lighter per corner than the heaviest (Toyo Extensa A/S II, SL).

4 tires in 245/50R17

Sort by the spec you care about.

LoadRevs/miSource
General G-MAX AS07PerformanceSL · 99W26.6025.710.01,709780Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 103Y26.6027.410.01,929782Spec page
Toyo Extensa A/S IIAll-seasonSL · 99V26.6928.610.81,709778Spec page
Toyo Proxes Sport A/SPerformanceSL · 99V26.6928.610.51,709778Spec page

Is 245/50R17 a 27-inch tire?

≈27″

Close. The size code works out to 26.65″, and the 4 tires here publish 26.60–26.69″, so people call it a 27.

All 27-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 245/50R17Difference
255/45R1726.04-0.61″-2.3%
195/60R1726.21-0.43″-1.6%
335/35R1726.23-0.41″-1.6%
235/50R1726.25-0.39″-1.5%
215/55R1726.31-0.33″-1.3%
225/60R1626.63-0.02″-0.1%
275/40R1826.66+0.02″+0.1%
225/55R1726.74+0.10″+0.4%
215/60R1727.16+0.51″+1.9%
235/55R1727.18+0.53″+2.0%

How to read 245/50R17

How to read any tire size

245/50R17 99V as printed on the tire sidewall, with each part numbered245/50R17 99V123456
How 245/50R17 99V is printed on the sidewall. It's the most common code among the 4 tires here (2 of them); tires in this size come in other load and speed ratings too.
1245Section width

245 mm across the widest point, or 9.65 inches. Every 245 size

250Aspect ratio

A percentage, not a measurement: the sidewall is 50% as tall as the tire is wide, which is 122.5 mm or 4.82 inches.

3RConstruction

Radial construction.

417Wheel diameter

Mounts on a 17-inch wheel. Approved wheel widths run 7.0″ to 8.5″.

599Load index

Each tire carries up to 1,709 lb (775 kg) at its maximum pressure.

6VSpeed rating

Rated for up to 149 mph sustained.

SpecificationInchesMetric
Overall diameter26.65677 mm
Section width9.65245 mm
Sidewall height4.82122.5 mm
Circumference83.72,126 mm
Revolutions per mile (calculated, unloaded)756.9470 per km
Revolutions per mile (published by manufacturers)778–782484–486 per km
Approved wheel width7.0–8.5178–216 mm

Speedometer error after switching to 245/50R17

Your actual speed– mph

Questions about 245/50R17

What is 245/50R17 in inches?

26.65 inches tall, 9.65 inches wide, on a 17-inch wheel. Written in inches, that is roughly 26.6×9.6R17.

How much does a 245/50R17 tire weigh?

Between 25.7 lb and 28.6 lb for the 4 tires listed here. The lightest is the General G-MAX AS07 (SL); the heaviest is the Toyo Extensa A/S II (SL).

What wheel width do I need for 245/50R17?

Manufacturers approve 7.0–8.5″ wide wheels for this size.

How many revolutions per mile does a 245/50R17 make?

Published figures run 778–782 revolutions per mile. The calculated figure is 756.9, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 245/50R17 than 215/55R17?

0.33 inches taller on paper (26.65″ vs 26.31″), which raises the axle about 0.17″. Your speedometer will read about 1.3% slow.