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265/45R19 in inches

A 265/45R19 tire is 28.4″ tall and 10.4″ wide, and fits a 19″ wheel. In inches it is written 28.4×10.4R19.

Diameter28.39″
Width10.43″
Sidewall4.69″
265/45R19 drawn to scale: 28.39 inch diameter, 4.69 inch sidewall, 19 inch wheel, 10.43 inch tread width19″ wheel4.69″28.39″ overall10.43″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 265/45R19 tires really are

Heights published by Michelin for all 2 tires in this size. Their published revolutions per mile work out to 27.5″ under load (below).

Real 265/45R19 tires measure 28.39–28.40″, against 28.39″ from the size code. They run both taller and shorter than the size code.

Height under load27.5″

Published revs per mile (733) mean the tire rolls like a 27.5″ tire on the vehicle. Use this for speedometer calibration.

Weight spread29.6–30.0 lb

The lightest (Michelin Pilot Sport 4, XL) is 0.4 lb lighter per corner than the heaviest (Michelin Pilot Alpin PA4, XL).

2 tires in 265/45R19

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Sport 4PerformanceXL · 105(Y)28.4029.69.52,039733Spec page
Michelin Pilot Alpin PA4WinterXL · 105V28.3930.010.52,039733Spec page

Is 265/45R19 a 28-inch tire?

≈28″

Close. The size code works out to 28.39″, and the 2 tires here publish 28.39–28.40″, so people call it a 28.

All 28-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 265/45R19Difference
245/45R1927.68-0.71″-2.5%
285/40R1927.98-0.41″-1.5%
255/45R1928.04-0.35″-1.2%
235/50R1928.25-0.14″-0.5%
295/40R1928.29-0.10″-0.3%
245/50R1928.65+0.26″+0.9%
225/55R1928.74+0.35″+1.2%
275/45R1928.74+0.35″+1.2%
255/50R1929.04+0.65″+2.3%
285/45R1929.10+0.71″+2.5%

How to read 265/45R19

How to read any tire size

265/45R19 105V as printed on the tire sidewall, with each part numbered265/45R19 105V123456
How 265/45R19 105V 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.
1265Section width

265 mm across the widest point, or 10.43 inches. Every 265 size

245Aspect ratio

A percentage, not a measurement: the sidewall is 45% as tall as the tire is wide, which is 119.3 mm or 4.69 inches.

3RConstruction

Radial construction.

419Wheel diameter

Mounts on a 19-inch wheel. Approved wheel widths run 8.5″ to 10.0″.

5105Load index

Each tire carries up to 2,039 lb (925 kg) at its maximum pressure.

6VSpeed rating

Rated for up to 149 mph sustained.

XLExtra load

Printed after the size.

SpecificationInchesMetric
Overall diameter28.39721 mm
Section width10.43265 mm
Sidewall height4.69119.3 mm
Circumference89.22,265 mm
Revolutions per mile (calculated, unloaded)710.4441 per km
Revolutions per mile (published by manufacturers)733455 per km
Approved wheel width8.5–10.0216–254 mm

Speedometer error after switching to 265/45R19

Your actual speed– mph

Questions about 265/45R19

What is 265/45R19 in inches?

28.39 inches tall, 10.43 inches wide, on a 19-inch wheel. Written in inches, that is roughly 28.4×10.4R19.

How much does a 265/45R19 tire weigh?

Between 29.6 lb and 30.0 lb for the 2 tires listed here. The lightest is the Michelin Pilot Sport 4 (XL); the heaviest is the Michelin Pilot Alpin PA4 (XL).

What wheel width do I need for 265/45R19?

Manufacturers approve 8.5–10.0″ wide wheels for this size.

How many revolutions per mile does a 265/45R19 make?

Published figures run 733 revolutions per mile. The calculated figure is 710.4, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/45R19 than 295/40R19?

0.10 inches taller on paper (28.39″ vs 28.29″), which raises the axle about 0.05″. Your speedometer will read about 0.3% slow.