Google Fiber Internet Speed Test
Internet Speed Tester
Press Start. After the test you get a network quality score and what your speed is good for.
Download
0.0 Mbps
Upload
0.0 Mbps
Ping
0.0 ms
Jitter
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Your last results
How this test measures
The test runs against the nearest Cloudflare data center, shown above as the server. Results describe the path between you and that server, which can differ from the path to a particular website, game or call server.
Ping is the median round-trip time of 60 small requests, and jitter is the average difference between consecutive ones. Download and upload use files of growing size sent one after another over a single connection, and the result is the 90th percentile of the requests that ran long enough to be reliable. Speeds are in megabits per second (1 Mbps = 1,000,000 bits).
Because it uses one connection, the test can read lower than a multi-connection test on very fast or distant links. Wi-Fi, a VPN, other devices and a busy browser can all lower the result, so use a cable and close other apps for the most accurate number. Nothing from the test is stored on our servers.
Powered by Cloudflare's network. No account needed.
Run the test below to check what your Google Fiber connection delivers: download speed, upload speed, ping and jitter. It takes about 30 seconds.
What speeds to expect on Google Fiber
Google Fiber (GFiber) is a fiber-to-the-home service with plans from 1 Gig upward, and its faster tiers go up to 8 Gig. Most plans are symmetrical, meaning upload matches download. Some tiers, such as the 2 Gig plan, have been offered with a lower upload than download, so check the exact numbers for your plan. Google has also been renaming its plans in some cities, so the name on your bill may not match older guides.
Whatever your plan, three things apply:
- Wired results are the real result. On a 1 Gig plan, a good wired test lands in the high 800s to around 940 Mbps, because overhead takes a small share.
- Wi-Fi will usually be lower. Even good Wi-Fi rarely reaches gigabit speeds on a phone or laptop, and that is the router and device, not Google Fiber.
- Multi-gig plans need multi-gig hardware. To see 2, 5 or 8 Gbps you need an Ethernet port and device that supports it (2.5, 5 or 10 Gbps). A standard gigabit port tops out near 940 Mbps.
How to test your Google Fiber speed accurately
- Plug in with Ethernet. Use a computer connected directly to the Fiber jack or router.
- Check your cable and port speed. Use a Cat 5e or better cable, and make sure your network adapter supports the speed you want to measure.
- Close other traffic. Pause downloads, cloud backups and streaming, and turn off any VPN.
- Run it two or three times. Compare results from different times of day.
The test here measures to the nearest Cloudflare server. Google's own speed test measures to Google's network, so the two numbers can differ a little.
If your speed is lower than your plan
- Compare wired and Wi-Fi. If wired is fast and Wi-Fi is slow, move the router, switch to the 5 GHz or 6 GHz band, or add a mesh extender.
- Restart the equipment. Power off the Fiber jack and router for 30 seconds, then power on and wait a few minutes.
- Check the cable. A damaged or old Ethernet cable is a common hidden limit.
- Test at a quiet time. This rules out a busy network at home.
- Contact Google Fiber support if wired results stay well below your plan, and share your test results.
To check that the connection stays steady over time, use the internet stability test.
How to read your Google Fiber result
| What you see | What it usually means |
|---|---|
| Wired download close to your plan, upload similar | Everything is working as it should. |
| Wired result good, Wi-Fi much lower | The limit is your router, the Wi-Fi band or the device, not the fiber line. |
| Wired result capped near 90 to 95 Mbps | A cable, adapter or port is running at 100 Mbps instead of gigabit. |
| Wired result capped near 940 Mbps on a faster plan | Your computer or router port is gigabit. Multi-gig plans need multi-gig hardware. |
| Speed is fine but calls or games stutter | Check ping, jitter and delay under load, not just speed. |
Speed is fine but it still feels slow
Download and upload speed measure how much data fits through the line. Lag and stutter depend on something else: how long data takes to arrive and how steady that is. A fiber line can show a perfect speed result and still feel slow if the router struggles when several devices are busy. The speed test above also reports delay under load, which shows how much ping rises while the line is full. If that number jumps a lot, run the ping and jitter test and the latency test.
Get the most out of fiber at home
- Put the router where you use it. A router in a closet or basement loses most of its speed to walls and floors.
- Use Ethernet for devices that stay put, such as a desktop, console or TV. It frees up Wi-Fi for everything else.
- Use a newer router for fast plans. Wi-Fi 6 or newer handles many devices at once much better than older routers.
- Test the same way each time. Same device, same spot, same cable, so you can compare results fairly.