How to Find the MAC Address of Your Laptop
Every laptop connected to a network carries a unique identifier embedded in its hardware — the MAC address. Whether you're setting up a router filter, troubleshooting a network issue, or registering your device on a managed network, knowing where to find this address is a fundamental networking skill. Here's how it works and where to look, across every major operating system.
What Is a MAC Address?
A MAC address (Media Access Control address) is a 12-character identifier assigned to a network interface card (NIC) at the hardware level. It typically looks like this:
It's written as six pairs of hexadecimal characters separated by colons or hyphens. Unlike an IP address — which can change depending on your network — a MAC address is burned into the hardware by the manufacturer and stays with that specific network adapter.
One important distinction: most modern laptops have two MAC addresses — one for the Wi-Fi adapter and one for the Ethernet (wired) adapter. If your laptop also has Bluetooth, that has its own address too. Which one you need depends entirely on how you're connecting to the network in question.
🖥️ How to Find Your MAC Address on Windows
Using the Settings App (Windows 10/11)
- Open Settings → Network & Internet
- Click Wi-Fi (or Ethernet, depending on your connection)
- Click on the connected network name
- Scroll down to find Physical address (MAC)
Using the Command Prompt
This method works on all versions of Windows and gives you the MAC address for every network adapter at once:
- Press Windows + R, type cmd, and press Enter
- Type ipconfig /all and press Enter
- Look for the adapter you need (Wi-Fi or Ethernet)
- Find the line labeled Physical Address
The output will show something like Physical Address. . . : 00-1A-2B-3C-4D-5E.
Using PowerShell
Type Get-NetAdapter in PowerShell to get a clean table showing each adapter's name and its MacAddress column.
🍎 How to Find Your MAC Address on macOS
Via System Settings (macOS Ventura and Later)
- Open System Settings → Network
- Select your active connection (Wi-Fi or Ethernet)
- Click Details
- The Hardware Address field displays the MAC address
Via System Information (Older macOS Versions)
Go to System Preferences → Network → select your adapter → Advanced → Hardware tab. The MAC address appears at the top of that panel.
Via Terminal
Open Terminal and type:
Look for the line starting with ether — that's your MAC address. en0 is typically Wi-Fi. en1 may be Ethernet, depending on your Mac model.
🐧 How to Find Your MAC Address on Linux
Open a terminal and run:
Each network interface listed will show a line with link/ether followed by the MAC address. Your Wi-Fi adapter is usually labeled wlan0 or wlp2s0, and your Ethernet adapter is often eth0 or enp3s0.
Alternatively, ifconfig -a works on most distributions if the net-tools package is installed.
Key Variables That Affect Which MAC Address You Need
Not all MAC address lookups are the same situation. A few factors determine which adapter's address matters:
| Scenario | Which MAC Address You Need |
|---|---|
| Setting up Wi-Fi router filtering | Wi-Fi adapter MAC |
| Connecting via Ethernet cable | Ethernet adapter MAC |
| Registering a device on a university network | Whichever adapter you'll use on that network |
| Network diagnostics or ARP troubleshooting | The active adapter's address |
MAC Address Randomization — A Growing Complication
Modern operating systems including Windows 10/11, macOS, and iOS/Android now support MAC address randomization. When enabled, your device uses a different, randomly generated MAC address each time it connects to a Wi-Fi network — rather than exposing the real hardware address.
This is a privacy feature designed to prevent tracking across networks, but it directly affects scenarios where your network admin or router is filtering by MAC address. If your device is using a randomized MAC and you register the hardware MAC with IT or your router, the filter won't match.
On Windows, you can check this under Wi-Fi network properties → Random hardware addresses. On macOS, it appears as Private Wi-Fi Address in network settings. Knowing whether this is enabled on your device changes how you interpret which address to use and register.
What Makes This More Complicated Than It Looks
Finding the MAC address itself takes under a minute on any platform. The trickier part is understanding which address applies to your specific situation — particularly if your laptop has multiple adapters, if randomization is active, or if you're working within a managed enterprise or campus network with its own registration requirements.
The operating system version you're running also shapes the exact menu path. Interface locations shift between major OS updates, so steps that were accurate on Windows 10 may differ slightly on Windows 11, and macOS Sonoma reorganizes some panels compared to Monterey.
Your connection type, privacy settings, and network environment are the pieces that determine whether the address you find is the one that actually matters for what you're trying to do.