265/35R20 in inches

A 265/35R20 tire is 27.3″ tall and 10.4″ wide, and fits a 20″ wheel. In inches it is written 27.3×10.4R20.

Diameter27.30″

Width10.43″

Sidewall3.65″

Drawn to scale. Nominal dimensions calculated from the size code.

Manufacturer data

How tall 265/35R20 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 19 tires in this size. Their published revolutions per mile work out to 26.5″ under load (below).

Real 265/35R20 tires measure 27.30–27.32″, against 27.30″ from the size code. They run both taller and shorter than the size code.

Height under load26.5″

Published revs per mile (760–761) mean the tire rolls like a 26.5″ tire on the vehicle. Use this for speedometer calibration.

Weight spread24.7–30.2 lb

The lightest (Michelin Pilot Sport Cup 2 R, XL) is 5.5 lb lighter per corner than the heaviest (Toyo Proxes Sport R, XL).

19 tires in 265/35R20

Sort by the spec you care about.

	Load					Revs/mi	Source
Michelin Pilot Sport Cup 2 RPerformance	XL · 99(Y)	27.30	24.7	5.5	1,709	761	Spec page
Michelin Pilot Sport Cup 2 RPerformance	XL · 99(Y)	27.30	25.2	5.5	1,709	761	Spec page
Michelin Pilot Super SportPerformance	XL · 99(Y)	27.30	25.4	9.0	1,709	761	Spec page
Michelin Pilot Sport Cup 2Performance	SL · 95(Y)	27.30	25.6	7.2	1,521	761	Spec page
Michelin Pilot Sport Cup 2 ConnectPerformance	XL · 99(Y)	27.30	25.6	7.2	1,709	761	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 99(Y)	27.30	25.9	8.0	1,709	761	Spec page
Michelin Pilot Sport Cup 2Performance	XL · 99(Y)	27.30	25.9	7.2	1,709	761	Spec page
General G-MAX RSPerformance	XL · 99Y	27.30	26.1	10.0	1,709	761	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 99(Y)	27.30	26.3	9.5	1,709	761	Spec page
Michelin Pilot Sport S 5Performance	XL · 99(Y)	27.30	26.4	9.0	1,709	761	Spec page
Toyo Proxes Sport 2Performance	XL · 99(Y)	27.30	26.9	9.2	1,709	760	Spec page
Michelin Pilot Alpin 5Winter	XL · 99V	27.32	27.0	9.5	1,708	761	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 99(Y)	27.30	27.4	9.5	1,709	761	Spec page
General G-MAX AS07Performance	XL · 99W	27.30	27.5	10.0	1,709	761	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 99(Y)	27.30	28.4	9.5	1,709	761	Spec page
Michelin Pilot Sport All-Season 4Performance	XL · 99Y	27.30	28.6	10.0	1,709	761	Spec page
Toyo Proxes Sport A/SPerformance	XL · 99Y	27.32	29.1	9.6	1,709	760	Spec page
BFGoodrich g-Force Phenom T/APerformance	XL · 99Y	27.32	30.0	9.0	1,709	761	Spec page
Toyo Proxes Sport RPerformance	XL · 99W	27.30	30.2	7.2	1,709	760	Spec page

Is 265/35R20 a 27-inch tire?

≈27″

Yes. The size code works out to 27.30″, and the 19 tires here publish 27.30–27.32″, 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.

Size	Diameter ″	vs 265/35R20	Difference
295/30R20	26.97	-0.33″	-1.2%
255/35R20	27.03	-0.28″	-1.0%
225/40R20	27.09	-0.22″	-0.8%
305/30R20	27.20	-0.10″	-0.4%
235/40R20	27.40	+0.10″	+0.4%
315/30R20	27.44	+0.14″	+0.5%
275/35R20	27.58	+0.28″	+1.0%
215/45R20	27.62	+0.31″	+1.2%
325/30R20	27.68	+0.37″	+1.4%
245/40R20	27.72	+0.41″	+1.5%

How to read 265/35R20

How to read any tire size

How 265/35R20 99Y is printed on the sidewall. It's the most common code among the 19 tires here (11 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.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 9.0″ to 10.5″.

599Load index

Each tire carries up to 1,709 lb (775 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 1,709 lb each and the standard-load tires up to 1,521 lb, as published.

Specification	Inches	Metric
Overall diameter	27.30	694 mm
Section width	10.43	265 mm
Sidewall height	3.65	92.8 mm
Circumference	85.8	2,179 mm
Revolutions per mile (calculated, unloaded)	738.7	459 per km
Revolutions per mile (published by manufacturers)	760–761	472–473 per km
Approved wheel width	9.0–10.5	229–267 mm

Speedometer error after switching to 265/35R20

Your actual speed– mph

Questions about 265/35R20

What is 265/35R20 in inches?

27.30 inches tall, 10.43 inches wide, on a 20-inch wheel. Written in inches, that is roughly 27.3×10.4R20.

How much does a 265/35R20 tire weigh?

Between 24.7 lb and 30.2 lb for the 19 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 R (XL); the heaviest is the Toyo Proxes Sport R (XL).

What wheel width do I need for 265/35R20?

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

How many revolutions per mile does a 265/35R20 make?

Published figures run 760–761 revolutions per mile. The calculated figure is 738.7, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/35R20 than 305/30R20?

0.10 inches taller on paper (27.30″ vs 27.20″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.