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265/40R22 in inches

A 265/40R22 tire is 30.3″ tall and 10.4″ wide, and fits a 22″ wheel. In inches it is written 30.3×10.4R22.

Diameter30.35″
Width10.43″
Sidewall4.17″
265/40R22 drawn to scale: 30.35 inch diameter, 4.17 inch sidewall, 22 inch wheel, 10.43 inch tread width22″ wheel4.17″30.35″ overall10.43″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 265/40R22 tires really are

Heights published by General, Michelin and Toyo for all 8 tires in this size. Their published revolutions per mile work out to 29.4–29.5″ under load (below).

Real 265/40R22 tires measure 30.30–30.50″, against 30.35″ from the size code. They run both taller and shorter than the size code.

  1. Michelin Pilot Sport All-Season 430.50″ +0.15″
  2. Michelin Pilot Sport 4 S30.40″ +0.05″
  3. Michelin Primacy Tour A/S30.40″ +0.05″
  4. Toyo Celsius Sport30.35″ +0.01″
  5. Toyo Proxes ST III30.35″ +0.01″
  6. Michelin X-Ice Snow30.35″ +0.00″
  7. Michelin X-Ice Snow+30.35″ +0.00″
  8. General G-MAX AS0730.30″ −0.05″
Each bar runs from the size code's 30.35″ (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 load29.4–29.5″

Published revs per mile (684–685) mean the tire rolls like a 29.4–29.5″ tire on the vehicle. Use this for speedometer calibration.

Weight spread31.9–36.8 lb

The lightest (Michelin Pilot Sport 4 S, XL) is 4.9 lb lighter per corner than the heaviest (Toyo Proxes ST III, XL).

8 tires in 265/40R22

Sort by the spec you care about.

LoadRevs/miSource
Michelin Pilot Sport 4 SPerformanceXL · 106(Y)30.4031.99.52,094685Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 106Y30.5032.010.02,094685Spec page
General G-MAX AS07PerformanceXL · 106W30.3032.510.02,094685Spec page
Toyo Celsius SportPerformanceXL · 106Y30.3533.89.72,094684Spec page
Michelin X-Ice Snow+WinterXL · 106H30.3534.210.52,094685Spec page
Michelin X-Ice SnowWinterXL · 106T30.3535.210.52,094685Spec page
Michelin Primacy Tour A/STouringXL · 106W30.4035.78.52,094685Spec page
Toyo Proxes ST IIIPerformanceXL · 106W30.3536.810.12,094684Spec page

Is 265/40R22 a 30-inch tire?

≈30″

Close. The size code works out to 30.35″, and the 8 tires here publish 30.30–30.50″, 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 265/40R22Difference
275/35R2229.58-0.77″-2.5%
285/35R2229.85-0.49″-1.6%
255/40R2230.03-0.31″-1.0%
295/35R2230.13-0.22″-0.7%
305/35R2230.41+0.06″+0.2%
275/40R2230.66+0.31″+1.0%
315/35R2230.68+0.33″+1.1%
325/35R2230.96+0.61″+2.0%
285/40R2230.98+0.63″+2.1%
255/45R2231.04+0.69″+2.3%

How to read 265/40R22

How to read any tire size

265/40R22 106W as printed on the tire sidewall, with each part numbered265/40R22 106W123456
How 265/40R22 106W is printed on the sidewall. It's the most common code among the 8 tires here (3 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.

422Wheel diameter

Mounts on a 22-inch wheel. Approved wheel widths run 9.0″ to 10.5″.

5106Load index

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

6WSpeed rating

Rated for up to 168 mph sustained.

XLExtra load

Printed after the size.

SpecificationInchesMetric
Overall diameter30.35771 mm
Section width10.43265 mm
Sidewall height4.17106.0 mm
Circumference95.32,422 mm
Revolutions per mile (calculated, unloaded)664.6413 per km
Revolutions per mile (published by manufacturers)684–685425–426 per km
Approved wheel width9.0–10.5229–267 mm

Speedometer error after switching to 265/40R22

Your actual speed– mph

Questions about 265/40R22

What is 265/40R22 in inches?

30.35 inches tall, 10.43 inches wide, on a 22-inch wheel. Written in inches, that is roughly 30.3×10.4R22.

How much does a 265/40R22 tire weigh?

Between 31.9 lb and 36.8 lb for the 8 tires listed here. The lightest is the Michelin Pilot Sport 4 S (XL); the heaviest is the Toyo Proxes ST III (XL).

What wheel width do I need for 265/40R22?

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

How many revolutions per mile does a 265/40R22 make?

Published figures run 684–685 revolutions per mile. The calculated figure is 664.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/40R22 than 295/35R22?

0.22 inches taller on paper (30.35″ vs 30.13″), which raises the axle about 0.11″. Your speedometer will read about 0.7% slow.