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Xfinity Speed Test

Check Your Comcast Xfinity Internet Speed

Xfinity by Comcast is the largest home internet provider in the United States, serving over 32 million customers across 39 states. This independent speed test checks your real Xfinity download and upload speeds, unaffected by Comcast's own servers. Compare the result against your subscribed plan to ensure you're getting full value.

Typical Xfinity Speed Test Speeds
Xfinity 10 Gbps (Multi-Gig)
↓ 8–10 Gbps
↑ 1–2 Gbps
Ping 3–10 ms
Xfinity Gigabit
↓ 900–1200 Mbps
↑ 35–100 Mbps
Ping 5–15 ms
Xfinity 200 Mbps
↓ 180–220 Mbps
↑ 10–20 Mbps
Ping 8–20 ms
Xfinity 50 Mbps
↓ 45–55 Mbps
↑ 5–10 Mbps
Ping 10–25 ms
0.0 Megabits per second
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---Mbps upload
Latency---
Server---
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0.0
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Tips to Improve Your Xfinity Speed Test
Xfinity cable plans have significantly lower upload speeds than download. Xfinity Fiber (eero) plans offer symmetrical speeds.
Connect your test device directly to the Xfinity gateway (modem/router combo) via ethernet for the most accurate reading.
If your speeds are low, restart your Xfinity gateway: unplug it for 30 seconds, then plug it back in.
Xfinity imposes a 1.2 TB monthly data cap on most plans. Heavy usage near the cap does not reduce speed.
Use the Xfinity My Account app to run Xfinity's own speed test and compare it with this independent result.

Xfinity Speed Test – FAQ

Common questions about xfinity speed test

Why is my Xfinity upload speed so slow?

Xfinity's cable-based plans (DOCSIS 3.0/3.1) are asymmetric — upload is significantly slower than download by design. A 200 Mbps plan typically includes only 10 Mbps upload. If you need fast upload for video calls or file sharing, consider upgrading to Xfinity's fiber service which offers symmetrical speeds.

How do I report slow Xfinity speed?

Visit xfinity.com/support or call 1-800-XFINITY. Have your account number ready and the speed test result from this page. Xfinity's app (Xfinity My Account) also has a built-in troubleshooting wizard that can remotely reset your modem and often resolves speed issues in minutes.

What Xfinity plan do I need for 4K streaming?

Netflix recommends 25 Mbps per stream for 4K Ultra HD. Xfinity's 75 Mbps plan is the minimum to support one 4K stream. For a family streaming 4K on multiple devices simultaneously, the 200 Mbps plan or higher is recommended.

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