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265/40R19 in inches

A 265/40R19 tire is 27.3″ tall and 10.4″ wide, and fits a 19″ wheel. In inches it is written 27.3×10.4R19.

Diameter27.35″
Width10.43″
Sidewall4.17″
265/40R19 drawn to scale: 27.35 inch diameter, 4.17 inch sidewall, 19 inch wheel, 10.43 inch tread width19″ wheel4.17″27.35″ overall10.43″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 265/40R19 tires really are

Heights published by BFGoodrich, Michelin and Toyo for all 11 tires in this size. Their published revolutions per mile work out to 26.5–26.6″ under load (below).

Real 265/40R19 tires measure 27.30–27.60″, against 27.35″ from the size code. They run both taller and shorter than the size code.

  1. Michelin Pilot Sport All-Season 427.60″ +0.25″
  2. Michelin Pilot Sport Cup 2 Connect27.40″ +0.05″
  3. Michelin Pilot Super Sport27.40″ +0.05″
  4. Toyo Proxes Sport 227.40″ +0.05″
  5. Michelin Pilot Alpin PA4 · 227.36–27.40″ +0.05″
  6. Michelin Pilot Sport 4 S · 227.30–27.40″ +0.05″
  7. Toyo Proxes R888R27.36″ +0.02″
  8. BFGoodrich g-Force Phenom T/A27.36″ +0.01″
  9. Michelin Pilot Alpin 527.36″ +0.01″
Each bar runs from the size code's 27.35″ (the orange line) to the model's published height. The track spans 1.0″. Where a model comes in several load ranges, the darker part shows its range of heights; the number after the name is how many versions it comes in.
Height under load26.5–26.6″

Published revs per mile (759–760) mean the tire rolls like a 26.5–26.6″ tire on the vehicle. Use this for speedometer calibration.

Weight spread25.0–30.2 lb

The lightest (Michelin Pilot Super Sport, XL) is 5.2 lb lighter per corner than the heaviest (Toyo Proxes R888R, SL).

11 tires in 265/40R19

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Super SportPerformanceXL · 102(Y)27.4025.09.01,874760Spec page
Michelin Pilot Sport Cup 2 ConnectPerformanceXL · 102(Y)27.4026.67.21,874760Spec page
Michelin Pilot Sport 4 SPerformanceXL · 102(Y)27.3027.09.51,874760Spec page
Michelin Pilot Alpin PA4WinterSL · 98V27.4027.110.51,653760Spec page
Toyo Proxes Sport 2PerformanceXL · 102(Y)27.4027.19.21,874759Spec page
Michelin Pilot Alpin PA4WinterXL · 102V27.3627.310.51,874760Spec page
Michelin Pilot Sport 4 SPerformanceXL · 102(Y)27.4027.49.01,874760Spec page
Michelin Pilot Alpin 5WinterXL · 102V27.3627.99.51,874760Spec page
BFGoodrich g-Force Phenom T/APerformanceXL · 102Y27.3629.08.01,874760Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 102Y27.6030.010.01,874760Spec page
Toyo Proxes R888RPerformanceSL · 98(Y)27.3630.26.31,653759Spec page

Is 265/40R19 a 27-inch tire?

≈27″

Close. The size code works out to 27.35″, and the 11 tires here publish 27.30–27.60″, 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 265/40R19Difference
285/35R1926.85-0.49″-1.8%
225/45R1926.97-0.37″-1.4%
255/40R1927.03-0.31″-1.2%
295/35R1927.13-0.22″-0.8%
345/30R1927.15-0.20″-0.7%
235/45R1927.33-0.02″-0.1%
355/30R1927.39+0.04″+0.1%
305/35R1927.41+0.06″+0.2%
275/40R1927.66+0.31″+1.2%
245/45R1927.68+0.33″+1.2%

How to read 265/40R19

How to read any tire size

265/40R19 102Y as printed on the tire sidewall, with each part numbered265/40R19 102Y123456
How 265/40R19 102Y is printed on the sidewall. It's the most common code among the 11 tires here (5 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

240Aspect ratio

A percentage, not a measurement: the sidewall is 40% as tall as the tire is wide, which is 106.0 mm or 4.17 inches.

3RConstruction

Radial construction.

419Wheel diameter

Mounts on a 19-inch wheel. Approved wheel widths run 9.0″ to 10.5″.

5102Load index

Each tire carries up to 1,874 lb (850 kg) at its maximum pressure.

6YSpeed rating

Rated for up to 186 mph sustained.

XLExtra load

Printed after the size. In this size the XL tires carry up to 1,874 lb each and the standard-load tires up to 1,653 lb, as published.

SpecificationInchesMetric
Overall diameter27.35695 mm
Section width10.43265 mm
Sidewall height4.17106.0 mm
Circumference85.92,182 mm
Revolutions per mile (calculated, unloaded)737.5458 per km
Revolutions per mile (published by manufacturers)759–760472 per km
Approved wheel width9.0–10.5229–267 mm

Speedometer error after switching to 265/40R19

Your actual speed– mph

Questions about 265/40R19

What is 265/40R19 in inches?

27.35 inches tall, 10.43 inches wide, on a 19-inch wheel. Written in inches, that is roughly 27.3×10.4R19.

How much does a 265/40R19 tire weigh?

Between 25.0 lb and 30.2 lb for the 11 tires listed here. The lightest is the Michelin Pilot Super Sport (XL); the heaviest is the Toyo Proxes R888R (SL).

What wheel width do I need for 265/40R19?

Manufacturers approve 9.0–10.5″ wide wheels for this size.

How many revolutions per mile does a 265/40R19 make?

Published figures run 759–760 revolutions per mile. The calculated figure is 737.5, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/40R19 than 235/45R19?

0.02 inches taller on paper (27.35″ vs 27.33″), which raises the axle about 0.01″. Your speedometer will read about 0.1% slow.