What is the average Xfinity (Comcast) speed?

Based on 1,151 verified speed measurements from Xfinity (Comcast) customers, the average download speed is 349 Mbps, upload is 81 Mbps, and ping is 33 ms.

How do I run a Xfinity (Comcast) speed test?

Click the 'Run Speed Test' button on this page. The test takes under a minute and works on any device. Your result will be compared to the Xfinity (Comcast) average.

Is my Xfinity (Comcast) connection slower than average?

Run the speed test above and compare your result to the Xfinity (Comcast) average of 349 Mbps download. If your speed is significantly lower (more than 30% below average), contact Xfinity (Comcast) support to troubleshoot.

Xfinity (Comcast) Speed Test

Real average speeds in United States based on 1,151 verified measurements.

Fast

Avg Download

349

Mbps

Avg Upload

Mbps

Avg Ping

Measurements

1,151

real users

Test your Xfinity (Comcast) speed

Compare your connection to the Xfinity (Comcast) average and contribute to the index.

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Xfinity (Comcast) vs Other United States ISPs

How Xfinity (Comcast) compares to competing ISPs in United States.

Frontier 161 tests

Avg Download 409 Mbps +60 Mbps faster Compare →

Optimum 122 tests

Avg Download 379 Mbps +30 Mbps faster Compare →

Google Fiber 80 tests

Avg Download 370 Mbps +21 Mbps faster Compare →

Cox 255 tests

Avg Download 346 Mbps -3 Mbps slower Compare →

Spectrum (Charter) 1,179 tests

Avg Download 318 Mbps -31 Mbps slower Compare →

About Xfinity (Comcast) Speed Test Data

The average Xfinity (Comcast) download speed is 349 Mbps, based on 1,151 real speed tests run by Xfinity (Comcast) customers. The fastest recorded speed was 2399 Mbps, and the best ping was 4 ms.

Speeds vary widely based on your specific plan, location, time of day, and whether you're connected via ethernet or Wi-Fi. If your result is significantly below the average, try restarting your router, switching to ethernet, or contact Xfinity (Comcast) support.

These statistics are updated continuously as Xfinity (Comcast) customers run speed tests on InternetSpeedTest.net. Click "Run Speed Test" to measure your Xfinity (Comcast) connection and contribute to the data.

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