Decoded sidewall size

275/40R24 tire size

275/40R24 in inches: 32.66" overall diameter — 10.83" wide, 4.33" sidewall.

Methodology: dimensions are calculated from standard ETRTO tire-size formulas. Last reviewed June 2026 by the TreadSize editorial team.

275/40R24 tire detail photo with TreadSize diameter, width, and rim measurement card

Overall diameter 32.66 in 829.6 mm

Section width 10.83 in 275 mm

Sidewall height 4.33 in 110 mm

Revs / mile 617 speedo calibration

Before you fit 275/40R24: verify the vehicle placard, load index, speed rating, wheel offset, and full-lock/full-compression clearance. Nominal dimensions do not guarantee a safe physical fit.

Compare this size

Full dimensions

Measurement	Metric	Imperial
Overall diameter	829.6 mm	32.66 in
Section width	275 mm	10.83 in
Sidewall height	110 mm	4.33 in
Rim diameter	609.6 mm	24 in
Circumference	2606.3 mm	102.61 in
Revolutions per mile	617.5
Aspect ratio	40%

Formula-only page, pending data review

TreadSize can calculate the physical dimensions for 275/40R24, but the current first-party NHTSA size dataset has no complaint or recall row for this exact size. This page is marked noindex until a real safety record exists; no complaint counts, recall counts, or verified safety claims are inferred from nearby sizes.

Source checked: NHTSA ODI — Consumer Complaints (FLAT_CMPL) + Recalls (FLAT_RCL), U.S. DOT public domain; Complaints through 2021. For current recall research, use NHTSA.gov.

Decode another tire size → · Compare two sizes → · Plus sizing →

Frequently asked questions

What is the overall diameter of a 275/40R24 tire?

A 275/40R24 tire has an overall diameter of 32.66 inches (829.6 mm).

How tall is a 275/40R24 tire?

The sidewall height is 110 mm (4.33 inches), and the overall diameter from the ground to the top of the tire is 32.66 inches.

How many revolutions per mile does a 275/40R24 tire make?

A 275/40R24 tire makes approximately 617 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 275/40R24 tire fit?

A 275/40R24 tire is designed for a 24-inch rim (609.6 mm).

All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.