Hub / Buying & Fitment Guides / Sizing & Measuring Guide
GuideSizing & Measuring Guide
Order a perfect fit the first time — the sizing method WheelCovers.Com teaches across its articles.
Read the Tire, Not the Wheel
Your wheel diameter is printed on every tire sidewall. In P215/60R16, the final number — 16 — is the wheel diameter in inches. That's your hubcap/cover size. Hubcaps 101 stresses measuring before every purchase.
Three Checks Before You Buy
- Diameter — from the sidewall code (14"–17" covers most passenger cars; 16"–19.5" for trucks/simulators).
- Retention type — clip-on (spring steel ring), bolt-on (lug-nut retained), or screw-on center caps. Match what your wheel accepts.
- Vehicle match — for wheel skins and simulators, fitment is vehicle-specific, not just size-specific.
Common Mistakes
- Measuring the visible wheel face instead of using the tire code (faces measure larger).
- Assuming all four wheels are identical after a previous owner's mismatched replacement.
- Ignoring retention: a 16" clip-on won't stay on a wheel designed for bolt-through caps — a key installation failure cause.
Once sized, move to the Buying Guide to pick a product family, then the Installation Guide.
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