This tool converts dBm value to its percentage equivalent
Your phone or tablet might report a RSSI or dBm level for the Wi-Fi network. Use that level in the tool and it will provide you a percentage number that represents the strength of the Wi-Fi signal. The higher the % value the better the network.
Calculator
Default values of maximum signal value (best) is -30 dBm and minimum signal value (worst) is -90 dBm.
Enter the signal value observed with a Wi-Fi analysis tool
Example Calculations
- An RSSI value of -50 dBm is equivalent to 67%
- A lower value of received signal at -60 dBm is equivalent to 50%
Background
dBm is an absolute measure of signal strength in decibels, referenced to one milliwatt (mW).
dBm provides an accurate and consistent measurement of signal power, with values typically ranging from -30 dBm (a very strong signal) to -90 dBm (a very weak signal). Unlike RSSI, dBm values are standardized, making them a more reliable metric for measuring Wi-Fi signal strength across different devices.
In Wi-Fi networking, dBm is often considered the more precise method for measuring signal strength. A good Wi-Fi signal strength for reliable connectivity and performance is generally considered to be between -50 dBm and -60 dBm. Anything below -70 dBm is likely to result in poor performance or dropped connections.
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