Firestone Duraforce DT 215/70D15/8 - 360449

The Firestone Duraforce DT in 215/70R15 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 215/70R15 means

In the size 215/70R15, 215 is the section width in millimeters (8.46 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 150.5 mm (5.93 in) — R denotes radial construction, and 15 is the wheel diameter in inches. That works out to an overall diameter of about 26.85 inches, turning roughly 751 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 26.7 inches — when clearance is tight, go by the published figure rather than the nominal size math.

Specifications

Frequently asked questions

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.

Will 215/70R15 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 215/70R15, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 215/70R15 tire in stock to compare options.

Keep shopping

Shop all 215/70R15 tires, browse Firestone tires, see every Firestone Duraforce DT size, or view all tires at ThreePiece.us.