Test your Spectrum connection speed below
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This test measures the connection to your current device, not the speed delivered directly to your gateway or modem.
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Run this free Spectrum speed test to check your Spectrum (Charter Communications) internet speed. In under a minute you will see your download speed, upload speed, ping, and jitter, measured against the nearest Measurement Lab server.
Spectrum’s cable plans range from 100 Mbps up to 1,000 Mbps (Gig) depending on your area. Spectrum does not enforce data caps, so if your result is far below your plan speed, the cause is usually your home network or equipment — the guides below will help you find it.
Spectrum Internet offers 100–500 Mbps in most areas, with Spectrum Internet Gig (up to 1,000 Mbps download) available in many markets. Like all cable providers, Spectrum advertises “up to” speeds, so results 10–20% below your plan rate are normal.
Spectrum upload speeds on cable plans are typically 10–35 Mbps. If your household does a lot of video calling or cloud backup, test during a call to see whether uploads are your bottleneck.
Slow Spectrum speeds are most often caused by an old modem, a weak Wi-Fi signal, or too many devices sharing the connection. Restart your modem and router (unplug both for 60 seconds), then run a wired test to isolate the problem.
If wired speeds match your plan but Wi-Fi is slow, reposition your router centrally and switch nearby devices to the 5 GHz band. Spectrum also offers WiFi extenders (pods) for homes with dead zones.
For the most accurate result, connect your computer directly to your router with an Ethernet cable if possible. If you must use Wi-Fi, stand close to the router and disconnect other devices during the test.
Close streaming apps, cloud backups, and other browser tabs before clicking Start. Run the test 2–3 times at different times of day — speeds often dip during evening peak hours (7–11 PM) when many households are online.
Download speed (Mbps) controls how fast you can stream, browse, and download files. Upload speed (Mbps) affects video calls, live streaming, and cloud backups. Ping (ms) measures responsiveness — under 50 ms is good for gaming and calls. Jitter (ms) measures consistency — lower is better, especially for voice and video.
Compare your download result to your plan’s advertised speed. Most providers advertise “up to” speeds, so a result within about 20% of the advertised rate is normal.
Within about 20% of your plan’s advertised speed is healthy — for example, 400+ Mbps on a 500 Mbps plan. Uploads of 10–35 Mbps are typical on Spectrum cable plans.