Chicago, IL Internet Speed Test
Free internet speed test for Chicago, IL. Measure download, upload, latency, jitter, and bufferbloat — no signup, no ads.
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Download measured to Google, Cloudflare, Netflix, Amazon, and other major CDNs — the networks that actually deliver the web.
About Chicago internet
Chicago is served by Comcast Xfinity (cable), AT&T Fiber (growing), and RCN (now Astound). Fiber options are expanding in the city, giving cable an increasingly strong competitor.
What to look for in your results
Download
Compare to your ISP plan's advertised speed. Wi-Fi typically delivers 60–80% of wired speed.
Latency (ping)
Under 30 ms is excellent for gaming and video calls. Over 100 ms will feel noticeable.
Bufferbloat
An A or B grade means your connection handles congestion well. D or F causes call and gaming lag even at high speeds.
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View all →Frequently Asked Questions
Is fiber internet available in Chicago?▾
Yes. AT&T Fiber covers many Chicago neighborhoods. RCN/Astound also offers fiber-like speeds in parts of the city. Comcast Xfinity cable remains the most widely available option.
How do I test my internet speed in my city?▾
Run the test above on this page. For the most accurate result, connect via ethernet, close streaming apps and cloud backups, and run the test twice to get a consistent number.
Is this speed test accurate?▾
Yes. SpeedIP measures download throughput to major CDN networks including Cloudflare, Google, Netflix, and Amazon — the same networks that deliver everyday web traffic — not just one test server.
What factors affect internet speed?▾
Wi-Fi signal strength, router quality, peak-hour congestion on your ISP's network, cable quality, and distance from the nearest fiber node all affect measured speed. Test over ethernet to remove Wi-Fi as a variable.