How to Read Your Tire Size (Philippines Guide)

That string of numbers on your tire’s sidewall tells you everything you need to buy the right replacement. Once you can read it, ordering tires becomes simple. Here’s how.

Decoding the code

Take 185/65 R15 as an example. Each part means something:

• 185 — tread width in millimetres.
• 65 — aspect ratio: the sidewall height as a percentage of the width.
• R — radial construction (almost all modern tires).
• 15 — the rim diameter in inches.

Where to find your tire size

Look on the sidewall of your current tire, or check the sticker inside the driver’s door jamb (it lists the manufacturer-recommended size and pressure). Match this exact code when buying replacements.

Can you change tire size?

Small changes are possible with plus-sizing, but keep the overall diameter similar to avoid speedometer errors and rubbing. When in doubt, stick with your car’s recommended size.

Know your size? Send it to us and we’ll match it from our tires price list — and ask about a tires-and-mags package to save more.

Frequently Asked Questions

Where do I find my tire size?

On your tire’s sidewall (e.g. 185/65 R15) or the sticker inside the driver’s door jamb.

Can I put a different size tire on my car?

Small plus-sizing changes are possible, but keep the overall diameter close to stock. We’ll advise on safe options.

What does the R in a tire size mean?

R stands for radial construction, used by almost all modern passenger tires.

How much do tires cost in the Philippines?

Prices vary by size — see our tires price list for current rates, and ask about mags-and-tires packages.