Open the Command Prompt or Terminal
Type `ipconfig` on Windows or `ifconfig` / `ip addr` on Mac/Linux
Find the active WiFi adapter section
Look for the IPv4 Address or IP Address line
On Windows, check under Wireless LAN adapter Wi-Fi
On Mac, go to System Settings
Select Wi-Fi
Click Details or Advanced
View the IP address in the TCP/IP section
On iPhone, go to Settings
Tap Wi-Fi
Tap the connected network
View the IP Address field
On Android, go to Settings
Tap Network & Internet or Connections
Tap Wi-Fi
Tap the connected network
View the IP address in network details
Use your router admin page if needed
Log in and check the connected device list
Look for the device’s assigned IP address