How to Compare Internet Upload Speeds

Difficulty
Beginner
Tested on
macOS 15.0 - Windows 11
You will need
Ethernet cable, stable internet connection, modern web browser

Step by step

  1. 1 min

    Isolate the connection

    Disconnect all secondary devices from your router including smartphones, tablets, and streaming sticks. Use an Ethernet cable to connect your computer directly to the router's LAN port to bypass Wi-Fi interference.

    Note: Wireless interference significantly degrades upload test results.
  2. 1 min

    Select a standardized test

    Open your browser and navigate to a provider-neutral speed testing site such as Speedtest by Ookla or Fast.com. Ensure you use the same testing platform for both your current connection and any alternative service to maintain parity.

  3. 30 sec

    Initiate the upload test

    Click the Go or Start button to begin the diagnostic. The tool will first measure download, then cycle to upload speed; wait for the upload metric to stabilize before recording the final number in Megabits per second (Mbps).

  4. 1 min

    Perform multiple iterations

    Run the test at least three times at different intervals, such as morning, mid-day, and evening. Calculate the average of these results to identify any significant fluctuations or service degradation during peak usage hours.

    Note: Peak hours often reveal throttling or congestion issues.
  5. 1 min

    Evaluate against service tier

    Log into your internet service provider's customer portal or review your latest billing statement to find your advertised upload speed. Compare your tested average against this number to verify if you are receiving the service bandwidth you are paying for.