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what size tires

To know what size tires you need, you have to match exactly what your car (or truck/SUV) is designed for, using the info printed in a few places on your vehicle and in the owner’s manual.

1. Where to find your correct tire size

Check these spots on your vehicle (all should match):

  • Driver’s door jamb sticker (the most important one: “Tire and Loading Information”).
  • Owner’s manual under “tires” or “specifications”.
  • Existing tire sidewall (only if you’re sure those are still the original / correct size).

On the door sticker, you’ll see something like:

225/60R16 98H

That line is your factory‑recommended tire size.

2. How to read a tire size (example: 225/60R16 98H)

Breakdown of a common code like 225/60R16 98H :

  • 225 = tire width in millimeters (sidewall to sidewall).
  • 60 = aspect ratio (sidewall height is 60% of the width).
  • R = radial construction.
  • 16 = wheel (rim) diameter in inches.
  • 98 = load index (how much weight one tire can safely carry).
  • H = speed rating (max safe speed category).

So “what size tires?” is really: width + aspect ratio + rim diameter + correct load index and speed rating for your vehicle.

3. Simple step‑by‑step: choosing the size

  1. Look at the door jamb sticker, write down the full size (including load index and speed rating).
  2. Make sure your rims are the same diameter as on that sticker (e.g., if it says 16, you must use tires for 16‑inch wheels unless you change wheels).
  3. If you’re replacing with the same size , just order tires in that exact code.
  4. If you want a different size (bigger look, different profile), stay very close to the original overall diameter; most guides recommend not changing more than about 3% from factory diameter.

Changing sizes too much can cause:

  • Speedometer error.
  • Rubbing on fenders or suspension.
  • Poor handling or ABS/traction control issues.

4. Quick HTML table: example size breakdown

Here’s a sample table in HTML for a size like 225/60R16 98H :

html

<table>
  <thead>
    <tr>
      <th>Code Part</th>
      <th>Meaning</th>
      <th>Example Value</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>225</td>
      <td>Width (mm)</td>
      <td>225 mm</td>
    </tr>
    <tr>
      <td>60</td>
      <td>Aspect ratio (%)</td>
      <td>60% of width</td>
    </tr>
    <tr>
      <td>R</td>
      <td>Construction</td>
      <td>Radial</td>
    </tr>
    <tr>
      <td>16</td>
      <td>Wheel diameter (in)</td>
      <td>16 in rim</td>
    </tr>
    <tr>
      <td>98</td>
      <td>Load index</td>
      <td>98 (≈ 1650 lb per tire)</td>
    </tr>
    <tr>
      <td>H</td>
      <td>Speed rating</td>
      <td>H (up to about 130 mph)</td>
    </tr>
  </tbody>
</table>

(Load index and speed rating values are taken from standard charts like those used by major tire retailers.)

5. If you tell me your vehicle

If you reply with:

  • Year
  • Make (e.g., Toyota, Ford)
  • Model and trim (e.g., Camry SE, F‑150 XLT)

I can help you narrow down the exact stock tire size and common alternates that stay within the safe range of what your car was designed to run.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.