Measure your internet connection speed and ping (latency)
An internet speed test measures the download speed and latency (ping) of your current internet connection. Download speed is measured in Mbps (megabits per second), and ping is measured in ms (milliseconds).
Download speed is how fast data is received from the internet, affecting web browsing, video streaming, and file downloads. Upload speed is how fast data is sent to a server, which matters for video calls, cloud backups, and file uploads.
Mbps (megabits per second) is the unit for measuring internet speed, representing the amount of data transferred per second. 1 Mbps can transfer 1,000,000 bits per second, and downloading a 1 MB (megabyte) file requires approximately 8 Mbps.
There are many causes of slow speed. Being far from the router, wireless interference, more devices connected simultaneously, peak network hours (evenings), ISP line issues, and VPN usage are common causes. Switching to a wired cable connection often significantly improves speed.
General web browsing and email is fine with 10 Mbps or more. HD video streaming needs 25 Mbps, and 4K UHD streaming requires 50 Mbps or more. Remote work and online gaming benefit from 50–100 Mbps, and households with multiple simultaneous users are recommended to have 100 Mbps or more.
An internet speed test calculates speed by measuring the time it takes to send and receive data to and from a test server. The download test measures how long it takes to fetch a large file from the server, while the ping test measures the round-trip time (in milliseconds) for data to reach the server and return. A lower ping means faster response times, which is especially important for online gaming.
Netflix 4K streaming requires a minimum of 25 Mbps, YouTube HD requires 5 Mbps, and video conferencing needs 1–4 Mbps for both upload and download. For online gaming, ping matters more than raw speed — below 20ms is considered an excellent environment.
You can improve speed by restarting your router, updating to the latest firmware, optimizing router placement (open, central location), changing wireless channels, and using the 5GHz band. Using a wired Ethernet cable provides more stable and faster speeds than a wireless connection.