How tall is a 275/55R20 tire?

A 275/55R20 has a nominal overall diameter of 31.92 inches (811 mm), calculated as the 20-inch wheel plus two sidewalls. This is the unloaded figure — a fitted tire sits fractionally shorter under the weight of the vehicle.

What wheel size does a 275/55R20 tire fit?

A 275/55R20 fits a wheel of 20 inches in diameter. The wheel also has to be within the rim width range the manufacturer publishes for this size, which is printed in the tire's spec sheet.

What do the numbers in 275/55R20 mean?

275 is the section width in millimetres. 55 is the aspect ratio — the sidewall is 55% of the width, so 151.3 mm here. R marks the construction (radial). 20 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 275/55R20

Dimensions, specs, and every size 275/55R20 tire currently in stock

Overall Height

31.92"

811 mm · calculated

Section Width

275 mm

10.83 inches

Sidewall Height

5.96"

151.3 mm · 55% profile

Wheel Diameter

20"

508.0 mm

275/55R20 Specifications

Read directly from the size code. Load index, speed rating, and rim width range vary by model.

Specification	Imperial	Metric
Section width	10.83 in	275 mm
Aspect ratio	55%	—
Sidewall height	5.96 in	151.3 mm
Overall diameter (calculated)	31.92 in	811 mm
Wheel / rim diameter	20 in	508.0 mm
Construction	Radial	—

What does 275/55R20 mean?

Reading the code on your sidewall

Section width

275 mm

The distance from sidewall to sidewall across the tire's widest point.

Aspect ratio

55% profile

The sidewall stands 55% of the section width, which is 151.3 mm on this size.

Construction (R)

Radial

The body plies run across the tire at right angles to the direction of travel.

Wheel diameter

20 in

Fits a wheel measuring 20 inches across.

275/55R20 Questions & Answers

Dimensions and fitment guidelines for size 275/55R20

Customer Support & Fitment Advice

Need Help Choosing The Right Tires?

Have questions about fitment, brands, or pricing? Our team of tire experts is here to guide you to the perfect set — zero pressure, zero sales tactics.

100% Guaranteed Fitment Advice

Talk to a Tire Specialist Today

We make tire buying fast and effortless. Call or email us anytime to verify size compatibility, load index, or speed ratings for your vehicle.

Call Direct

(916) 520-1702

Send Email

info@natireshub.com

Mon - Fri: 8:00 AM - 5:00 PM PST

✓

Fast Expert Advice

Response within 1 business hour

Live Inventory

Shop Our Collection

Explore premium tires, wheels, and fitments from top brands

LT235/85R16 ATLANDER ROVERCLAW M/T I 120/116Q 10PLY

245/45ZR19 ATLANDER XSPORT-86 102W XL 420A-A 50K + ROAD HAZARD

295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD

195/50R15 ROADTRACK TERRENA A/S 82V 560-A-A 55K + ROAD HAZARD

P215/60R17 LEXANI QUATTRO TEMPO TOUR AW 96H BLK 600A-A 70K+ ROAD HAZARD

275/40ZR18 LANDSPIDER CITY SPORT 103W XL BSW

255/55R20 MASTERTRACK BADLANDS ATX 110V XL 620A-B 50K+ ROAD HAZARD

275/30ZR21 ROYALBLACK RACINGTRAC 102Y XL 420-A-A 50K + ROAD HAZARD

LT235/70R17 RBP REPULSOR A/T PLATEAU 120/117R 10PLY BLK 50K + ROAD HAZARD

LT265/65R18 RBP REPULSOR A/T PLATEAU 122/119R 10PLY M+S 50K + ROAD HAZARD

235/55R19 ARMSTRONG TRU-TRAC SU 105V XL M+S 440-A-A 65K+ ROAD HAZARD

205/45ZR16 ROADTRACK TERRENA UHP 98W M+S 420-A-A 50K + ROAD HAZARD

215/60R17 ROYALBLACK MILAGEMAX SUV/CUV 96V 620-A-A 60K + ROAD HAZARD

235/55ZR19 ROADTRACK TERRENA UHP 105W M+S 420-A-A 50K + ROAD HAZARD

245/45ZR20 ATLANDER XSPORT-86 103W XL 420A-A 45K + ROAD HAZARD

LT265/75R16 FORTUNE TORMENTA H/T FRS305 M+S 123/120S 10PLY 45K

205/40ZR17 ROYALBLACK RACINGTRAC 84W XL 420-A-A 50K + ROAD HAZARD

215/55R16 ROADTRACK TERRENA UHP 97V M+S 420-A-A 50K + ROAD HAZARD

LT265/70R16 LIONHART LIONCLAW ATX2 BLK 10PLY 40K+ ROAD HAZARD