How to Check Your Wi-Fi Signal Strength

To easily check your Wi-Fi signal strength, look for how many lines appear in your device’s Wi-Fi symbol. The more lines, the stronger the connection.
For a more precise measurement, use apps like AirPort Utility on an iPhone, Wi-Fi Analyzer on Android, or WifiInfoView on Windows and look for a dBm measurement (sometimes labeled as the RSSI).
dBm ratings range between -30 (strongest) and -90 (weakest).