What an IP address is and why you need it

Your IP address is a set of numbers that identifies your device on your network — like a mailing address for your computer or phone. It looks like four numbers separated by dots: 192.168.1.5 or something similar. When you're setting up a home network or troubleshooting why a device won't connect, you'll often need to know this number.

Every device on your home network has its own IP address. Your router assigns these automatically most of the time, but you may need to find a specific device's address to log into your router's settings, configure a printer, or help a technician diagnose a connection problem.

The process is different depending on whether you're using Windows, Mac, or a mobile device, but each method takes less than a minute once you know where to look.

Key Takeaways

  • Your IP address is a set of four numbers separated by dots that identifies your device on your home network.
  • On Windows, open Command Prompt and type ipconfig to see your IP address listed as "IPv4 Address".
  • On Mac, go to System Settings, click Network, select your connection, and look for "IP Address" in the details.
  • On iPhone or iPad, open Settings, tap Wi-Fi, select your network, and the IP address appears under "IP Address".
  • On Android, open Settings, go to Wi-Fi, tap your connected network, and scroll down to find the IP address.

Finding your IP address on Windows

The fastest way on Windows is to use Command Prompt. Click the Start button, type cmd, and press Enter. A black window will open.

Type ipconfig and press Enter. You'll see a list of information. Look for the section labeled "Wireless LAN adapter" or "Ethernet adapter" — whichever one matches how your computer connects to the network. Next to "IPv4 Address" you'll see four numbers separated by dots. That's your IP address. Write it down if you need it.

If you prefer not to use Command Prompt, you can also find it through Settings. Click Start, then Settings, then Network & Internet. On the left side, click Wi-Fi or Ethernet depending on how you're connected. Scroll down and click "Advanced" or "View your network properties". Your IP address will be listed there as "IPv4 address".

Finding your IP address on Mac

On Mac, open System Settings by clicking the Apple menu in the top-left corner and selecting System Settings. Click Network in the left sidebar.

You'll see your current connection listed — either Wi-Fi or Ethernet. Click it, then click Details or look at the information panel on the right side of the window. Your IP address appears next to "IP Address". It will be four numbers separated by dots.

If you're using an older version of macOS, the path may be slightly different: click the Apple menu, select System Preferences, then Network. The process is the same from there.

Finding your IP address on iPhone or iPad

Open the Settings app. Tap Wi-Fi near the top of the screen. Find the network you're currently connected to — it will have a checkmark next to it — and tap the information icon (a small circle with an "i" inside) next to the network name.

A panel will open showing details about that connection. Scroll down and you'll see "IP Address" with four numbers next to it. That's your device's IP address on your home network.

Finding your IP address on Android

Open Settings and tap Wi-Fi. Find the network you're connected to and tap it (or tap and hold it, depending on your Android version). A menu will appear showing connection details.

Scroll down in this menu until you see "IP address". The four numbers listed there are your device's IP address. On some Android phones, you may need to tap "Advanced" or "More details" to see the full list of network information.

What to do once you have your IP address

Once you've found your IP address, you can use it for several common tasks. If you need to log into your router to change Wi-Fi settings or check which devices are connected, you'll often enter your IP address into a web browser. If you're setting up a printer or smart home device on your network, you may need to give it a fixed IP address so it doesn't change. If a technician is helping you troubleshoot a connection problem, having this number ready will speed up the process.

Keep in mind that your IP address can change if your device disconnects and reconnects to the network, or if you restart your router. If you need a device to keep the same IP address permanently, you can set up a "static IP" or "reserved IP" through your router's settings — but that's a separate process covered in your router's manual or support pages.

Frequently Asked Questions

Is my IP address the same as my router's IP address?

No. Your router has its own IP address (usually something like 192.168.1.1), and each device connected to it has a different IP address. The router assigns these addresses to devices automatically. If you need to log into your router, you'll use the router's address, not your device's address.

Will my IP address change if I restart my device?

It might. If your device disconnects from the network and reconnects, it may be assigned a new IP address. For most everyday tasks this doesn't matter. If you need a device to keep the same address — like a printer or security camera — you can set up a reserved IP in your router's settings.

Can someone use my IP address to hack me?

Your local IP address (the one you see on your home network) only works within your own network. Someone outside your home cannot use it to reach your device. Your public IP address, which is different, is visible to websites you visit, but that's normal and expected. Your router's firewall protects devices behind it.

What if I see multiple IP addresses when I run ipconfig?

That's normal. You may see addresses for Wi-Fi, Ethernet, virtual adapters, or other connections. Look for the one that matches how your device is actually connected to your network right now. If you're on Wi-Fi, find the Wi-Fi adapter section. If you're plugged in with an Ethernet cable, find the Ethernet section.