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Douglas
Douglas ALL SEASON 225/55R18
Douglas ALL SEASON 225/55R18
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Shop the Douglas ALL SEASON 225/55R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 225/55R18 means
In the size 225/55R18, 225 is the section width in millimeters (8.86 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 123.8 mm (4.87 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 27.74 inches, turning roughly 727 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
Specifications
| Size | 225/55R18 |
| Service Description | 98 |
| Load Index | 98 |
| Section Width (mm) | 225 |
| Aspect Ratio | 55 |
| Temperature Grade | TIRE RIM DIAMETER=18TIRE TYPE=TRACTION=TREAD WEAR=TREAD DEPTH=UQTG=WARRANTY= |
Frequently asked questions
Will 225/55R18 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 225/55R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 225/55R18 tire in stock to compare options.
How fast does this tire ship?
Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.
Keep shopping
Shop all 225/55R18 tires, browse Douglas tires, see every Douglas ALL SEASON size, or view all tires at ThreePiece.us.
- BRAND:
- Douglas
- MODEL:
- ALL SEASON
- SIZE:
- 225/55R18
- ASPECT RATIO:
- 55
- LOAD INDEX:
- 98
- SECTION WIDTH:
- 225
- SERVICE DESCRIPTION:
- 98
- TEMPERATURE:
- TIRE RIM DIAMETER=18TIRE TYPE=TRACTION=TREAD WEAR=TREAD DEPTH=UQTG=WARRANTY=
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