How to determine Wi-Fi signal strength on Windows 10

On Windows 10, when you connect a device to the internet to work from home or office using a Wi-Fi adapter, the quality of the signal will dictate the overall performance of the connection. In part, it's because wireless technology uses radio waves to connect a device to the access point, and similar to other radio signals, it has limited range and problems with interference as well as traveling through solid objects (such as walls).

Understanding the signal strength of the Wi-Fi connection on your laptop or desktop PC can help to determine if the slow connectivity is a signal problem and not an issue with your Internet Service Provider (ISP) or wireless access point (usually, your router).

How to check Wi-Fi signal strength using Command Prompt

To check the signal strength of a Wi-Fi connection using Command Prompt, use these steps:

1. Open Start.
2. Search for Command Prompt and click the top result to open the app.
3. Type the following command to view the Wi-Fi signal strength and press Enter:netsh wlan show interfaces
4. See the Signal field to determine the signal quality. (If the output number is equal or higher than 80, then the strength of the signal is good.)

Once you complete the steps, you'll quickly find out the quality of the Wi-Fi signal.

How to check Wi-Fi signal strength using PowerShell

To view the signal strength of a Wi-Fi connection using PowerShell, use these steps:

1. Open Start.
2. Search for PowerShell and click the top result to open the app.
3. Type the following command to view the Wi-Fi signal strength and press Enter:(netsh wlan show interfaces) -Match '^\s+Signal' -Replace '^\s+Signal\s+:\s+',''Quick tip: Similar to Command Prompt, in PowerShell, you can also run the netsh wlan show interfaces command to view signal quality.
4. See the signal quality output. (The percentage goes from 0 to 100, where 100 percent indicates excellent signal quality.)

Once you complete the steps, if you see a signal quality between 80 and 100 percent, then the connection is reliable. If you see a signal above 70 percent, it's still good for light web browsing and managing emails. Anything below 60 percent means that you have a weak signal, and you should consider moving the device closer to the access point or relocating the access point to the middle of the house or office.

If you're trying to determine the perfect placement on the house or office for the best signal, run the above command where you typically use your computer, then move around to another place or room, and re-run the command to find out the signal strength in the new location.

In the case that you're viewing the Wi-Fi icon to find out the performance of the connection, consider that each bar (including the dot) represents around 25 percent of signal strength. This means that three and four bars indicate a good signal quality and anything below indicates a weak signal.