tireheight.com

265/35R18 in inches

A 265/35R18 tire is 25.3″ tall and 10.4″ wide, and fits a 18″ wheel. In inches it is written 25.3×10.4R18.

Diameter25.30″
Width10.43″
Sidewall3.65″
265/35R18 drawn to scale: 25.30 inch diameter, 3.65 inch sidewall, 18 inch wheel, 10.43 inch tread width18″ wheel3.65″25.30″ overall10.43″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 265/35R18 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 13 tires in this size. Their published revolutions per mile work out to 24.5–24.7″ under load (below).

Real 265/35R18 tires measure 25.30–25.50″, against 25.30″ from the size code. They run both taller and shorter than the size code.

  1. Michelin Pilot Sport All-Season 425.50″ +0.20″
  2. Toyo Proxes R1R25.43″ +0.13″
  3. Toyo Proxes R888R25.31″ +0.01″
  4. BFGoodrich g-Force COMP-2 A/S PLUS25.31″ +0.01″
  5. BFGoodrich g-Force Phenom T/A25.31″ +0.01″
  6. Michelin Pilot Alpin PA425.31″ +0.01″
  7. General G-MAX AS0725.30″ −0.00″
  8. General G-MAX RS25.30″ −0.00″
  9. Michelin Pilot Sport 4 S25.30″ −0.00″
  10. Michelin Pilot Sport Cup 2 Connect25.30″ −0.00″
  11. Michelin Pilot Sport PS225.30″ −0.00″
  12. Toyo Proxes Sport 225.30″ −0.00″
  13. Toyo Proxes Sport R25.30″ −0.00″
Each bar runs from the size code's 25.30″ (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 load24.5–24.7″

Published revs per mile (816–822) mean the tire rolls like a 24.5–24.7″ tire on the vehicle. Use this for speedometer calibration.

Weight spread23.7–27.9 lb

The lightest (General G-MAX RS, XL) is 4.2 lb lighter per corner than the heaviest (BFGoodrich g-Force COMP-2 A/S PLUS, XL).

13 tires in 265/35R18

Sort by the spec you care about.

LoadRevs/miSource
General G-MAX RSPerformanceXL · 97Y25.3023.710.01,609821Spec page
Toyo Proxes Sport 2PerformanceXL · 97(Y)25.3024.69.21,609821Spec page
General G-MAX AS07PerformanceXL · 97W25.3024.910.01,609821Spec page
Michelin Pilot Sport Cup 2 ConnectPerformanceXL · 97(Y)25.3025.17.21,609822Spec page
Michelin Pilot Sport 4 SPerformanceXL · 97(Y)25.3025.69.51,609822Spec page
Michelin Pilot Sport PS2PerformanceXL · 97(Y)25.3025.79.51,609822Spec page
Michelin Pilot Alpin PA4WinterXL · 97V25.3126.010.51,609822Spec page
Toyo Proxes R1RPerformanceSL · 93W25.4326.38.21,433817Spec page
Toyo Proxes Sport RPerformanceXL · 97W25.3026.77.21,609821Spec page
Toyo Proxes R888RPerformanceXL · 97Y25.3127.26.31,609821Spec page
BFGoodrich g-Force Phenom T/APerformanceXL · 97Y25.3127.59.01,609822Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 97Y25.5027.710.01,609816Spec page
BFGoodrich g-Force COMP-2 A/S PLUSPerformanceXL · 97W25.3127.99.01,609822Spec page

Is 265/35R18 a 25-inch tire?

≈25″

Yes. The size code works out to 25.30″, and the 13 tires here publish 25.30–25.50″, so people call it a 25.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 265/35R18Difference
215/40R1824.77-0.53″-2.1%
295/30R1824.97-0.33″-1.3%
255/35R1825.03-0.28″-1.1%
225/40R1825.09-0.22″-0.9%
235/40R1825.40+0.10″+0.4%
315/30R1825.44+0.14″+0.5%
275/35R1825.58+0.28″+1.1%
215/45R1825.62+0.31″+1.2%
245/40R1825.72+0.41″+1.6%
285/35R1825.85+0.55″+2.2%

How to read 265/35R18

How to read any tire size

265/35R18 97Y as printed on the tire sidewall, with each part numbered265/35R18 97Y123456
How 265/35R18 97Y is printed on the sidewall. It's the most common code among the 13 tires here (4 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

235Aspect ratio

A percentage, not a measurement: the sidewall is 35% as tall as the tire is wide, which is 92.8 mm or 3.65 inches.

3RConstruction

Radial construction.

418Wheel diameter

Mounts on a 18-inch wheel. Approved wheel widths run 9.0″ to 10.5″.

597Load index

Each tire carries up to 1,609 lb (730 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 1,609 lb each and the standard-load tires up to 1,433 lb, as published.

SpecificationInchesMetric
Overall diameter25.30643 mm
Section width10.43265 mm
Sidewall height3.6592.8 mm
Circumference79.52,019 mm
Revolutions per mile (calculated, unloaded)797.1495 per km
Revolutions per mile (published by manufacturers)816–822507–511 per km
Approved wheel width9.0–10.5229–267 mm

Speedometer error after switching to 265/35R18

Your actual speed– mph

Questions about 265/35R18

What is 265/35R18 in inches?

25.30 inches tall, 10.43 inches wide, on a 18-inch wheel. Written in inches, that is roughly 25.3×10.4R18.

How much does a 265/35R18 tire weigh?

Between 23.7 lb and 27.9 lb for the 13 tires listed here. The lightest is the General G-MAX RS (XL); the heaviest is the BFGoodrich g-Force COMP-2 A/S PLUS (XL).

What wheel width do I need for 265/35R18?

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

How many revolutions per mile does a 265/35R18 make?

Published figures run 816–822 revolutions per mile. The calculated figure is 797.1, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/35R18 than 225/40R18?

0.22 inches taller on paper (25.30″ vs 25.09″), which raises the axle about 0.11″. Your speedometer will read about 0.9% slow.