Base your upload requirement on the encoder’s total outgoing bitrate, not on the fact that the program is radio. YouTube recommends keeping 20% headroom above that bitrate: a 6 Mbps stream needs about 7.2 Mbps of available upload capacity. If you send a backup stream at the same time, add its bitrate before calculating headroom.
Why a radio livestream’s format does not set its upload requirement
A YouTube radio livestream is still a video stream if it includes a static image, visualizer, or other picture. The audio bitrate alone therefore does not tell you how much upload bandwidth the whole broadcast needs. Use the encoder’s total output bitrate, which includes its video and audio, as the basis for your calculation.
A simple visual may be configured at a lower bitrate than detailed or frequently changing video, but choose settings for the visual you are actually sending and check YouTube’s recommendation for that codec, resolution, and frame rate.
Calculate the upload speed to aim for
- Find the encoder’s total bitrate. Use the configured output for the complete stream, not just the audio or video component.
- Add any simultaneous backup stream. If your encoder sends a primary and backup stream at once, include both bitrates.
- Add 20% headroom. Multiply the combined bitrate by 1.2. For example, one 6 Mbps stream calls for about 7.2 Mbps of available upload capacity.
This is a practical target, not a promise that a connection will be stable at that speed. YouTube’s guidance is to “Leave a bit of room (20% recommended).” YouTube Help: Streaming tips.
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YouTube H.264 bitrate examples
YouTube’s live encoder recommendations vary by codec, resolution, and frame rate. The following H.264 examples use the recommended video bitrate as the calculation basis; for your own setup, use the encoder’s actual total output bitrate, including audio.
| Resolution and frame rate | Recommended H.264 video bitrate | Upload target with 20% headroom |
|---|---|---|
| 720p30 | 8 Mbps | 9.6 Mbps |
| 720p60 | 8 Mbps | 9.6 Mbps |
| 1080p30 | 14 Mbps | 16.8 Mbps |
| 1080p60 | 17 Mbps | 20.4 Mbps |
These are YouTube’s current guidance figures, accessed in 2026, not measurements of your internet service. Its live encoder guidance also specifies CBR for H.264 and AAC or MP3 audio, with 128 Kbps recommended for stereo. YouTube lists different bitrate recommendations for H.264, H.265/HEVC, and AV1, so use the row for your chosen codec rather than treating the H.264 examples as universal. See YouTube’s live encoder settings.
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Check the connection before going live
- Test upload speed, not download speed. The stream must travel from your connection to YouTube, and YouTube notes that inbound speed is often higher than outbound speed.
- Test under realistic network use. Other people or devices using the same connection can reduce the bandwidth available to the encoder.
- Test the actual broadcast. Run the setup before the event with audio and movement similar to what you will stream, then monitor YouTube’s stream health while live.
- Use Ethernet for a computer-based broadcast where practical. YouTube recommends an Ethernet connection for live streaming from a computer. A cable can reduce dependence on Wi-Fi conditions, but it cannot raise the upload capacity supplied by your internet plan. See YouTube Help: Filming tips – Live.
Is 10 Mbps upload enough?
It depends on your encoder’s total output bitrate and what else is using the connection. Ten Mbps clears the 9.6 Mbps example target for a single H.264 720p30 stream only if that capacity is actually available to the encoder; it is below the 16.8 Mbps example target for 1080p30. For a particular stream, calculate from its total configured bitrate, include any backup feed, and leave 20% headroom.
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