What Your IP Address Is and Why You Need It

Your IP address is a set of numbers that identifies your computer on the internet — like a mailing address for data. It looks like four numbers separated by dots: 192.168.1.5 or something similar. You need it when troubleshooting internet problems, setting up a printer on your home network, or giving technical support someone the information they ask for.

Your computer actually has two IP addresses: a local IP address (used only on your home or office network) and a public IP address (the one the wider internet sees). Most of the time when someone asks for your IP address, they mean the local one. Both are straightforward to find.

Key Takeaways

  • On Windows, open Settings, go to Network & Internet, then Status to see your local IP address when ready.
  • On Mac, open System Settings, click Network, select your connection, and look for the IP address field.
  • Your local IP address starts with 192.168 or 10.0 and only works on your home network.
  • To find your public IP address, search "what is my IP" in any browser — the first result will show it.
  • Your IP address changes when you restart your router or move to a different network.

Finding Your Local IP Address on Windows

Open the Settings app by pressing the Windows key and typing "Settings", then press Enter. Click Network & Internet in the left sidebar. You will see a list of connection types — click the one you are using, either Wi-Fi if you are wireless or Ethernet if you are plugged in with a cable.

Click Status at the top of the window. Scroll down until you see a section labeled IP settings. Your local IP address appears next to "IPv4 address" — it will be a series of four numbers like 192.168.1.42. Write it down or take a screenshot if you need to give it to someone.

If you are using an older version of Windows (Windows 10 or earlier), the path is slightly different: open Settings, click Network & Internet, then Wi-Fi or Ethernet, then Properties. Scroll to the bottom and look for "IPv4 address".

Finding Your Local IP Address on Mac

Click the Apple menu in the top-left corner and select System Settings (or System Preferences on older Macs). Click Network in the sidebar. You will see a list of connections — select the one you are currently using, either Wi-Fi or Ethernet.

Your IP address appears in the main panel next to "IP Address". It will be four numbers separated by dots. If you do not see it right away, make sure the connection is selected and look for a section labeled "TCP/IP" — the address is listed there.

Finding Your Public IP Address

Your public IP address is what websites see when you visit them. To find it, open any web browser and search for "what is my IP". The first result will show your public IP address prominently at the top of the page — usually in large text. You do not need to click anything; the answer appears as soon as the page loads.

Your public IP address is assigned by your internet service provider and changes whenever you restart your router or reconnect to the internet. It is different from your local IP address, which only works on your home network. If someone asks for "your IP address" without specifying, they almost always mean your local one.

Why Your IP Address Might Look Different

If you restart your router or reconnect to your network, your local IP address may change. This is normal — your router assigns addresses from a pool, and it may give you a different one the next time you connect. Some routers let you set a device to always get the same address (called a "static IP"), but most home networks do not need this.

If you are on a work network or school network, your local IP address will be completely different from your home one. The format might be the same (four numbers), but the actual numbers will reflect that network instead. When you move to a different network, you get a new local IP address for that network.

What to Do If You Cannot Find Your IP Address

If the steps above do not show your IP address, check that you are actually connected to the network. Look for a Wi-Fi icon in your taskbar (Windows) or menu bar (Mac) — if it shows a connection, you are online. If the icon shows no connection or an X, reconnect to your network first.

If you are connected but still do not see an IP address, try restarting your computer. Sometimes the network connection gets stuck and a restart fixes it. After restarting, go back to Settings or System Settings and check again.

Frequently Asked Questions

Is my IP address the same as my MAC address?

No. Your MAC address is a different identifier used only on your local network. Your IP address is what identifies you on the internet. They serve different purposes and look completely different — MAC addresses are usually letters and numbers separated by colons, while IP addresses are four numbers separated by dots.

Can someone find my home address from my IP address?

Your public IP address can be traced to your internet service provider and roughly to your city or region, but not to your exact street address. Your local IP address (192.168.x.x) cannot be traced by anyone outside your home network — it only works on your own devices.

Why do I have two different IP addresses?

Your local IP address is assigned by your router and only works on your home network. Your public IP address is assigned by your internet service provider and is what the outside internet sees. Both are necessary — your router uses the local one to send data between your devices, and your ISP uses the public one to route data to and from your home.

Will my IP address change if I move to a different house?

Your local IP address will change because you will have a new router on a new network. Your public IP address will also change because you will have a new internet service provider or a new connection with your current provider. Both are normal and expected when you move.

Do I need to memorize my IP address?

No. You only need to find it when someone specifically asks for it or when you are troubleshooting a network problem. You can look it up the same way each time — it takes less than a minute. Most people never need to memorize it.