Shop LT255/70R17 Tires

All You Need To Know About LT255/70R17 Tire Size

LT255/70R17 has a 255 mm section width, a 70% aspect ratio, fits a 17-inch wheel, and has a calculated overall diameter of approximately 31.1 inches with a sidewall approximately 7.0 inches high. The LT prefix identifies LT255/70R17 as a Light Truck tire size. The numerical dimensions are also available on the verified 255/70R17 page, but LT and non-LT tires can have different load and inflation specifications and are not automatically interchangeable; see the LT tire guide for the relevant distinctions.

LT255/70R17 Size Quick Specs

LT255/70R17 Dimensions in Inches

The LT255/70R17 tire size is approximately 10.0 inches wide, 31.1 inches tall overall, with a sidewall approximately 7.0 inches high. The 17-inch measurement identifies the wheel diameter LT255/70R17 is designed to fit, while the overall diameter represents the approximate complete tire height.

LT255/70R17 Measurements in Inches

• Section Width: Approx. 10.0 inches
• Sidewall Height: Approx. 7.0 inches
• Overall Diameter: Approx. 31.1 inches
• Wheel Diameter: 17 inches
• Circumference: Approx. 97.6 inches

LT255/70R17 Alternative Tire Sizes

Drivers comparing LT255/70R17 alternatives can examine LT245/75R17 and LT265/70R17. LT245/75R17 is narrower but has a taller sidewall, producing a slightly larger overall diameter than LT255/70R17. LT265/70R17 is wider and also slightly taller overall. Both alternatives retain relatively close overall diameters within the commonly used ±3% guideline. However, that guideline is only a starting point when comparing tire sizes; dimensional similarity alone does not establish interchangeability or confirm that either alternative meets a vehicle’s fitment requirements.

LT255/70R17 vs LT245/75R17

LT245/75R17 has an overall diameter approximately 1.33% larger than LT255/70R17, which is within the commonly used ±3% diameter guideline.

• Width Difference: LT245/75R17 is nominally 10 mm narrower than LT255/70R17.
• Diameter Difference: LT245/75R17 is approximately 0.4 inches taller overall than LT255/70R17, a 1.33% increase.
• Interchangeability: The 1.33% diameter difference is within the commonly used ±3% guideline,  allowing for a swap. Wheel width, load capacity, clearance, and vehicle requirements must still be checked.
• Practical Difference: LT245/75R17 combines 10 mm less nominal width with a taller sidewall and slightly greater overall diameter than LT255/70R17.

LT255/70R17 vs LT265/70R17

LT265/70R17 has an overall diameter approximately 1.77% larger than LT255/70R17, which is within the commonly used ±3% diameter guideline.

• Width Difference: LT265/70R17 is nominally 10 mm wider than LT255/70R17.
• Diameter Difference: LT265/70R17 is approximately 0.6 inches taller overall than LT255/70R17, a 1.77% increase.
• Interchangeability: The 1.77% diameter difference is within the commonly used ±3% guideline, but this alone does not confirm interchangeability. Wheel width, load capacity, clearance, and vehicle requirements must still be checked.
• Practical Difference: LT265/70R17 adds 10 mm of nominal width and has a slightly taller sidewall and overall diameter than LT255/70R17.