265/70R17 Tire Diameter
The 265/70R17 tire has a diameter of approximately 31.6 inches, making it a popular choice for half-ton trucks and SUVs.
How to use this tool
- Find the three numbers on your tire sidewall (e.g. 225/45R17).
- Enter section width in mm, aspect ratio %, and wheel diameter in inches.
- The calculator returns sidewall height, overall diameter, and circumference.
The 265/70R17 is one of the most common truck and SUV tire sizes — calculate its exact diameter to plan for a lift kit or compare with other sizes.
Frequently asked questions
- How do I read a tire size?
- A tire size like 225/45R17 means: 225 mm section width, 45% aspect ratio (sidewall height), R = radial construction, 17 inch wheel diameter.
- Why does tire diameter matter?
- Changing tire diameter affects speedometer accuracy, gear ratios, clearance, and handling. Plus-sizing (larger wheel, lower sidewall) maintains diameter while improving aesthetics and handling.