How tall is a ST225/90R16 tire?

A ST225/90R16 has a nominal overall diameter of 31.94 inches (811 mm), calculated as the 16-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 ST225/90R16 tire fit?

A ST225/90R16 fits a wheel of 16 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 ST225/90R16 mean?

225 is the section width in millimetres. 90 is the aspect ratio — the sidewall is 90% of the width, so 202.5 mm here. R marks the construction (radial). 16 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size ST225/90R16

Dimensions, specs, and every size ST225/90R16 tire currently in stock

Overall Height

31.94"

811 mm · calculated

Section Width

225 mm

8.86 inches

Sidewall Height

7.97"

202.5 mm · 90% profile

Wheel Diameter

16"

406.4 mm

ST225/90R16 Specifications

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

Specification	Imperial	Metric
Section width	8.86 in	225 mm
Aspect ratio	90%	—
Sidewall height	7.97 in	202.5 mm
Overall diameter (calculated)	31.94 in	811 mm
Wheel / rim diameter	16 in	406.4 mm
Construction	Radial	—
Service type	Special trailer	—

What does ST225/90R16 mean?

Reading the code on your sidewall

Section width

225 mm

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

Aspect ratio

90% profile

The sidewall stands 90% of the section width, which is 202.5 mm on this size.

Construction (R)

Radial

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

Wheel diameter

16 in

Fits a wheel measuring 16 inches across.

ST225/90R16 Questions & Answers

Dimensions and fitment guidelines for size ST225/90R16

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

255/45ZR18 ROYALBLACK RACINGTRAC 103W XL 420-A-A 50K + ROAD HAZARD

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

255/65R18 LANDSPIDER CITYTRAXX H/T 111H 480A-A 50K + ROAD HAZARD

ST235/85R16 FORTUNE ST01 125/121M 10PLY 80psi 3640/3200

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

LT275/55R20 FORTUNE TORMENTA R/T FSR309 120/117Q 10PLY M+S 50K 80psi *NEW

P235/50R19 LIONHART LH-FIVE 103V BLK XL 320-A-A 40K + ROAD HAZARD

255/45ZR19 ROADTRACK TERRENA UHP 104W M+S 420-A-A 50K + ROAD HAZARD

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

P265/40R21 LIONHART LH-FIVE 105Y XL BLK 320-A-A 40K + ROAD HAZARD

265/70R16 COSMO EL JEFE H/T BW 112H M+S 560-A-A 55K+ROAD HAZARD

265/70R16 TRAVELSTAR ECOPATH A/T 112T 520-A-B 50K+ ROAD HAZARD

LT275/65R20 PEGASUS RTX R/T 126/123R 10PLY 40K+ ROAD HAZARD

35X13.50R24LT ROADTRACK TERRENA M/T 116Q 12PLY

235/50R19 COSMO ROAD HUNTER 99V M+S 560A-A 60K + ROAD HAZARD

265/70R16 COSMO EL TIGRE A/T 112T BSW M+S 540A-B 55K+ ROAD HAZARD

225/55ZR18 MOHAWK AEGIS SPORT A/S 102W XL M+S 500-A-A 50K + ROAD HAZARD

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

11R24.5 TRAVELSTAR TD660 CS DRIVE 149/146M 16PLY