How to Find a MacBook Serial Number (Then Check It Online)
How to Find a MacBook Serial Number
Quick answer: open Apple menu → About This Mac (or System Settings → General → About) and copy the Serial Number. Then paste it into the MacBook serial checker to verify the model and unlock history when needed.
Use the serial shown inside macOS as the starting point. A box label or bottom-case number is useful for comparison, but either can belong to a different device if parts or packaging were mixed.
Method 1 — About This Mac / System Settings
- Click the Apple logo in the menu bar.
- Choose About This Mac, or open System Settings → General → About.
- Copy the Serial Number exactly.
Method 2 — Bottom Case
Flip the MacBook over. The serial is printed on the underside near regulatory text. Compare it to software — they must match.
Identify the phone before you trust the listing.
Start with the free check to validate the IMEI and compare available device identity details.
Free
A quick first look
Enough to know whether the listing is worth more time.
Method 3 — Original Box
The barcode label includes Serial / SN. Useful for sealed units; for used Macs, always confirm against the laptop itself.
After You Find It — Check Online
- Run MacBook serial check online
- Confirm free model verification
- Review the available report fields and local price if you are buying, selling, or documenting the Mac
Continue with MacBook serial check online or specs & model check.