Tires Size 325/30R21
Dimensions, specs, and every size 325/30R21 tire currently in stock
28.68"
728 mm · calculated
325 mm
12.8 inches
3.84"
97.5 mm · 30% profile
21"
533.4 mm
Showing 1 to 8 of 8 products
325/30R21 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 12.8 in | 325 mm |
| Aspect ratio | 30% | — |
| Sidewall height | 3.84 in | 97.5 mm |
| Overall diameter (calculated) | 28.68 in | 728 mm |
| Wheel / rim diameter | 21 in | 533.4 mm |
| Construction | Radial | — |
What does 325/30R21 mean?
Reading the code on your sidewall
325 mm
The distance from sidewall to sidewall across the tire's widest point.
30% profile
The sidewall stands 30% of the section width, which is 97.5 mm on this size.
Radial
The body plies run across the tire at right angles to the direction of travel.
21 in
Fits a wheel measuring 21 inches across.
325/30R21 Questions & Answers
Dimensions and fitment guidelines for size 325/30R21
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.
Talk to a Tire Specialist Today
We make tire buying fast and effortless. Call or email us (Mon – Sat, 9AM – 5PM PT) to check size compatibility, load index, or speed ratings for your vehicle.
Expert Advice
Reply within 1 business day
Shop Our Collection
Explore premium tires, wheels, and fitments from top brands
Hankook Winter Pike RW11 Studdable LT275/65R20
Barkley Aphelios UHP 235/50ZR17
Landspider Wildtraxx A/T 245/65R17
Zeetex LT MT1000 33X12.50R20
Ceat Securedrive SUV A/S 225/60R18
Royalblack Milagemax Ltr H/T LT265/75R16
Gladiator Armor 4S All-weather EV Performance 235/40R19
Atlander Roverstar H/T 265/70R16
Hankook Winter Pike RW11 Studdable LT275/65R20
Barkley Aphelios UHP 235/50ZR17
Landspider Wildtraxx A/T 245/65R17
Zeetex LT MT1000 33X12.50R20
Ceat Securedrive SUV A/S 225/60R18
Royalblack Milagemax Ltr H/T LT265/75R16
Gladiator Armor 4S All-weather EV Performance 235/40R19
Atlander Roverstar H/T 265/70R16