What counts as close enough?
For a quick comparison in Guess the Speed, we use 80% of the plan's download speed as our own rule of thumb for "close enough." It is a practical signal, not a promise about what every device must receive or a standard set by a regulator. The percentage helps you notice a gap; it cannot explain the cause by itself.
Providers may describe a service tier as "up to" a speed. A speed test measures what reached one device at one moment, and Wi-Fi typically delivers less than a wired connection. Compare like with like before deciding whether the difference is persistent.
Why tests come in lower than the plan
A speed test can be lower for reasons inside the home or along the route to the test server. The good internet speed guide explains common causes in more detail.
- Wi-Fi distance and walls between your device and the router.
- Other people streaming, calling, or downloading during the test.
- An older device or Wi-Fi standard that cannot use the full connection.
- A VPN adding another step between your device and the test.
- The selected test server or the route traffic takes to reach it.
How to test fairly
- Use a wired connection near the router when one is available.
- Pause large downloads, backups, and other heavy activity for a moment.
- Run the same test more than once, including at different times of day.
- Compare both download and upload with the matching numbers on your plan.
- Keep the device, room, and connection type consistent when repeating.
When to call your provider
If several tests across different days stay well below your plan on a wired device near the router, keep a short record before contacting your provider. Note the date, time, device, connection type, and both measured speeds. A repeatable pattern is more useful to discuss than one result from one busy evening.
The Your Wi-Fi lately chart keeps recent real-test results in this browser, while Dev mode's JSON download gives you a detailed record of a run. Neither includes your saved plan speed.
Make it a game
Turn the next test into a family challenge: guess the download and upload, run a real test, and see who came closest. Play Guess the Speed or read more about the speed test game.