265/50R20 in inches

A 265/50R20 tire is 30.4″ tall and 10.4″ wide, and fits a 20″ wheel. In inches it is written 30.4×10.4R20.

Diameter30.43″

Width10.43″

Sidewall5.22″

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

Manufacturer data

How tall 265/50R20 tires really are

Heights published by BFGoodrich, General, Michelin, Mickey Thompson and Toyo for all 27 tires in this size. Their published revolutions per mile work out to 29.5–29.6″ under load (below).

Real 265/50R20 tires measure 30.40–30.50″, against 30.43″ from the size code. They run both taller and shorter than the size code.

Height under load29.5–29.6″

Published revs per mile (682–683) mean the tire rolls like a 29.5–29.6″ tire on the vehicle. Use this for speedometer calibration.

Weight spread33.6–44.1 lb

The lightest (Michelin Pilot Sport 4 SUV, SL) is 10.5 lb lighter per corner than the heaviest (BFGoodrich Trail-Terrain T/A+, SL).

27 tires in 265/50R20

Sort by the spec you care about.

	Load					Revs/mi	Source
Michelin Pilot Sport 4 SUVPerformance	SL · 107V	30.50	33.6	9.5	2,149	683	Spec page
Michelin Pilot Sport 4 SUVPerformance	XL · 111W	30.50	34.0	9.5	2,403	683	Spec page
Michelin CrossClimate2All-season	XL · 111V	30.40	34.1	10.0	2,403	683	Spec page
Michelin Primacy All SeasonTouring	SL · 107H	30.50	34.8	10.0	2,149	683	Spec page
Michelin X-Ice SnowWinter	XL · 111T	30.47	35.6	10.5	2,403	683	Spec page
General G-MAX AS07Performance	XL · 111V	30.40	35.9	11.0	2,403	683	Spec page
General Grabber H/THighway	XL · 111V	30.40	36.2	11.0	2,403	683	Spec page
Michelin Defender LTX M/S 2All-season	XL · 111H	30.50	36.2	11.0	2,403	683	Spec page
General Grabber H/THighway	SL · 107T	30.40	36.3	12.0	2,149	683	Spec page
BFGoodrich Advantage ControlAll-season	SL · 107V	30.47	36.4	10.5	2,150	683	Spec page
BFGoodrich Advantage ControlAll-season	SL · 107T	30.47	36.7	11.5	2,150	683	Spec page
Toyo Proxes ST IIIPerformance	XL · 111V	30.47	36.9	10.1	2,403	682	Spec page
Michelin Primacy All SeasonTouring	SL · 107H	30.50	37.0	10.0	2,149	683	Spec page
Michelin Primacy Tour A/STouring	XL · 111W	30.50	37.0	9.0	2,403	683	Spec page
Toyo Celsius IITouring	SL · 107V	30.47	37.6	11.6	2,149	682	Spec page
Michelin Primacy All SeasonTouring	XL · 111H	30.50	38.0	10.0	2,403	683	Spec page
Toyo Open Country A/T IIIAll-terrain	XL · 111T	30.47	38.8	13.3	2,403	682	Spec page
Toyo Proxes G-Tour	XL · 111V	30.50	38.8	12.1	2,403	682	Spec page
Toyo Observe G3-IceWinter	XL · 111T	30.47	38.8	12.0	2,403	682	Spec page
Toyo OPEN COUNTRY Q/TAll-season	XL · 111V	30.47	38.9	12.2	2,403	682	Spec page
Toyo Open Country H/T IIHighway	SL · 107T	30.47	38.9	11.6	2,149	682	Spec page
Toyo Open Country R/T TrailRugged-terrain	XL · 111T	30.47	39.7	13.3	2,403	682	Spec page
General Grabber A/TXAll-terrain	SL · 107T	30.40	40.2	14.0	2,149	683	Spec page
BFGoodrich Trail-Terrain T/AAll-terrain	SL · 107H	30.50	42.9	12.5	2,150	683	Spec page
Mickey Thompson Baja Boss A/TAll-terrain	XL · 111T	30.40	43.0	16.0	2,403	–	Spec page
BFGoodrich Trail-Terrain T/A+	SL · 107H	30.50	44.1	12.5	2,150	683	Spec page
General Grabber Arctic XWinter	XL · 111T	30.40	–	12.0	2,403	683	Spec page

Is 265/50R20 a 30-inch tire?

≈30″

Close. The size code works out to 30.43″, and the 27 tires here publish 30.40–30.50″, 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.

Size	Diameter ″	vs 265/50R20	Difference
245/50R20	29.65	-0.79″	-2.6%
275/45R20	29.74	-0.69″	-2.3%
255/50R20	30.04	-0.39″	-1.3%
285/45R20	30.10	-0.33″	-1.1%
235/55R20	30.18	-0.26″	-0.8%
295/45R20	30.45	+0.02″	+0.1%
305/45R20	30.81	+0.37″	+1.2%
275/50R20	30.83	+0.39″	+1.3%
255/55R20	31.04	+0.61″	+2.0%
235/60R20	31.10	+0.67″	+2.2%

How to read 265/50R20

How to read any tire size

How 265/50R20 111V is printed on the sidewall. It's the most common code among the 27 tires here (6 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

250Aspect ratio

A percentage, not a measurement: the sidewall is 50% as tall as the tire is wide, which is 132.5 mm or 5.22 inches.

3RConstruction

Radial construction.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 7.5″ to 9.5″.

5111Load index

Each tire carries up to 2,403 lb (1,090 kg) at its maximum pressure.

6VSpeed rating

Rated for up to 149 mph sustained.

XLExtra load

Printed after the size. In this size the XL tires carry up to 2,403 lb each and the standard-load tires up to 2,150 lb, as published.

Specification	Inches	Metric
Overall diameter	30.43	773 mm
Section width	10.43	265 mm
Sidewall height	5.22	132.5 mm
Circumference	95.6	2,428 mm
Revolutions per mile (calculated, unloaded)	662.7	412 per km
Revolutions per mile (published by manufacturers)	682–683	424 per km
Approved wheel width	7.5–9.5	191–241 mm

Speedometer error after switching to 265/50R20

Your actual speed– mph

Questions about 265/50R20

What is 265/50R20 in inches?

30.43 inches tall, 10.43 inches wide, on a 20-inch wheel. Written in inches, that is roughly 30.4×10.4R20.

How much does a 265/50R20 tire weigh?

Between 33.6 lb and 44.1 lb for the 26 tires listed here. The lightest is the Michelin Pilot Sport 4 SUV (SL); the heaviest is the BFGoodrich Trail-Terrain T/A+ (SL).

What wheel width do I need for 265/50R20?

Manufacturers approve 7.5–9.5″ wide wheels for this size.

How many revolutions per mile does a 265/50R20 make?

Published figures run 682–683 revolutions per mile. The calculated figure is 662.7, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 265/50R20 than 235/55R20?

0.26 inches taller on paper (30.43″ vs 30.18″), which raises the axle about 0.13″. Your speedometer will read about 0.8% slow.