Open Settings
Tap Wi-Fi
Tap the info icon next to the connected network
Tap Password
Authenticate with Face ID, Touch ID, or passcode
View or copy the password
On iOS 16 or later, tap the network name in Wi-Fi settings to see saved network details
If the network is not saved on your iPhone, you cannot view its password this way
If you use iCloud Keychain, you can also check saved Wi-Fi passwords on a Mac in Keychain Access