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Toyo
Toyo TOY Open Country M/T LT275/65R18/10
Toyo TOY Open Country M/T LT275/65R18/10
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Shop the Toyo Open Country M/T 275/65R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 275/65R18 means
In the size 275/65R18, 275 is the section width in millimeters (10.83 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 178.8 mm (7.04 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.07 inches, turning roughly 629 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.
The manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 123 — a maximum load of 3,417 lbs per tire, or 120 (3,086 lbs) per tire when mounted as duals. The speed symbol P corresponds to a maximum sustained speed of 93 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT275/65R18/10 |
| Tire Type | All Terrain |
| Service Description | 123/120P |
| Load Index | 123/120 |
| Speed Rating | P |
| Load Range | E (10 Ply) |
| Section Width (mm) | 275 |
| Aspect Ratio | 65 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 18.9 |
Frequently asked questions
Will 275/65R18 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 275/65R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/65R18 tire in stock to compare options.
What does 123/120P mean on the Toyo Open Country M/T?
123/120P breaks down as load index 123 — rated for 3,417 lbs per tire (120, or 3,086 lbs, in dual fitment) — with a P speed rating, good for a maximum sustained 93 mph.
What kind of tire is the Toyo Open Country M/T?
The Toyo Open Country M/T in 275/65R18 is a all terrain tire.
Keep shopping
Shop all 275/65R18 tires, see every Toyo Open Country M/T size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Toyo
- Model:
- TOY Open Country M/T
- Size:
- LT275/65R18/10
- Aspect Ratio:
- 65
- Load Index:
- 123/120
- Load Range:
- E (10 Ply)
- Section Width:
- 275
- Service Description:
- 123/120P
- Speed Index:
- P
- Temperature:
- N/A
- Tire Rim Diameter:
- 18
- Tire Type:
- All Terrain
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 18.9
- UQTG:
- N/A
- Warranty:
- N/A
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