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All You Need To Know About P255/65R17 Tire Size

P255/65R17 has a 255 mm section width, a 65% aspect ratio, fits a 17-inch wheel, has a calculated overall diameter of approximately 30.1 inches, and has a calculated sidewall height of approximately 6.5 inches. The P prefix identifies P255/65R17 as a P-metric passenger tire size. A verified 255/65R17 version also exists with the same nominal dimensions; P-metric and Euro-metric tires use different load-rating standards, so the designation and required load capacity should be checked rather than treating the two designations as automatically interchangeable. 

P255/65R17 Size Quick Specs

What Vehicles Use P255/65R17 Tires?

P255/65R17 is documented as a factory/OE tire size for the GMC Canyon, including verified Canyon configurations for which P255/65R17 is listed as original equipment. 

• GMC Canyon

To check whether the P255/65R17 tire size is a factory fitment for your specific vehicle, use our VIN lookup tool.

P255/65R17 Dimensions in Inches

The P255/65R17 tire size is approximately 10.0 inches wide, 30.1 inches tall overall, with a sidewall approximately 6.5 inches high. For P255/65R17, the 17-inch figure identifies the wheel diameter the tire is designed to fit, while the overall diameter represents the approximate complete tire height.

P255/65R17 in Inches: All Measurements

• Overall Diameter: Approx. 30.1 inches
• Section Width: Approx. 10.0 inches
• Sidewall Height: Approx. 6.5 inches
• Wheel Diameter: 17 inches
• Circumference: Approx. 94.4 inches

P255/65R17 Alternative Tire Sizes

P255/65R17 is commonly compared with P245/70R17 and P265/65R17, two verified P-metric sizes that also appear alongside the 255/65R17 dimensional family in tire-size comparisons. P245/70R17 is narrower and taller than P255/65R17, while P265/65R17 is wider with the same aspect ratio. Both alternatives have relatively close overall diameters and remain within the commonly used ±3% diameter guideline. Dimensional comparison alone does not establish interchangeability; the ±3% guideline is only a starting point when comparing tire sizes. 

P255/65R17 vs P245/70R17

P245/70R17 is approximately 1.51% larger in overall diameter than P255/65R17, so the difference is within the commonly used ±3% diameter guideline.

• Width Difference: P245/70R17 is 10 mm narrower than P255/65R17.
• Diameter Difference: P245/70R17 is approximately 0.45 inches larger in overall diameter than P255/65R17, a difference of 1.51%.
• Interchangeability: The P245/70R17 diameter difference from P255/65R17 falls within the commonly used ±3% guideline, making their interchangeability possible. Wheel width, load capacity, clearance, and vehicle requirements must still be checked.
• Practical Difference: P245/70R17 is 10 mm narrower than P255/65R17 and uses a taller sidewall, producing a slightly larger overall diameter.

P255/65R17 vs P265/65R17

P265/65R17 is approximately 1.70% larger in overall diameter than P255/65R17, so the difference is within the commonly used ±3% diameter guideline.

• Width Difference: P265/65R17 is 10 mm wider than P255/65R17.
• Diameter Difference: P265/65R17 is approximately 0.51 inches larger in overall diameter than P255/65R17, a difference of 1.70%.
• Interchangeability: The P265/65R17 diameter difference from P255/65R17 falls within the commonly used ±3% guideline, which allows for a possible swap. Wheel width, load capacity, clearance, and vehicle requirements must still be checked.
• Practical Difference: P265/65R17 is 10 mm wider than P255/65R17 and keeps the same 65% aspect ratio, giving it a slightly taller sidewall and larger overall diameter.