For 4K/2160p at 60 fps, YouTube recommends a 50 Mbps video bitrate with H.264, or 35 Mbps with AV1 or H.265/HEVC. In OBS, use constant bitrate (CBR), a two-second keyframe interval, and RTMPS where available.
Those are YouTube’s published encoder recommendations, not proof that a particular OBS build or internet connection can sustain them. A 100 Mbps plan is relevant only if that is sustained upload capacity available to the stream; measure the broadcast connection and leave headroom before choosing a target.
YouTube’s 4K60 bitrate recommendations by codec
YouTube groups its guidance by resolution, frame rate and codec. For 2160p at 60 fps, its table recommends 50 Mbps for H.264 and 35 Mbps for either AV1 or H.265/HEVC. The figures refer to video bitrate, not the combined total of video and audio traffic. You can check the current table in YouTube’s live encoder settings and bitrate guidance.
| Codec | YouTube’s recommended video bitrate for 2160p60 | Minimum shown in YouTube’s table |
|---|---|---|
| H.264 | 50 Mbps | 14 Mbps |
| AV1 | 35 Mbps | 10 Mbps |
| H.265/HEVC | 35 Mbps | 10 Mbps |
The minimums are not alternative recommended targets. They are useful context for reading the table, but choosing one instead of the recommendation may reduce the quality available to your stream. Nor does choosing the larger H.264 number prove that it will look better than AV1 or HEVC on your material: results depend on the encoder, content and viewing conditions.
Your hardware and OBS version also matter. The YouTube recommendation says what to configure for a codec; it does not certify that your graphics card, processor, encoder settings or connection have been tested. Confirm that the encoder you intend to use actually offers the codec and resolution. If it does not, H.264 is the straightforward route when the hardware supports it.
Keep audio in the network budget as well. YouTube lists AAC or MP3 for audio and recommends 128 kbps for stereo. That is small beside the video target, but it is still additional traffic, not part of the video bitrate. If you are building a continuous music or devotional channel, the practical setup may also depend on how the programme itself is prepared; for example, this guide to streaming gospel songs continuously on YouTube from India addresses the content workflow rather than replacing encoder guidance.
Check whether 100 Mbps means upload or download
Internet plans often advertise a speed that is easy to mistake for the capacity a livestream needs. Download speed is the rate at which data arrives at your connection. A live encoder sends video out, so upload speed is the relevant direction. If your plan says 100 Mbps without making clear that it is a sustained upload figure, do not assume that the stream can use all of it.
Run a speed test from the same connection and location that OBS will use, preferably while the household or workplace is in its ordinary state of use. A result from a phone on mobile data, a different Wi-Fi point or a quiet hour may not represent the wired computer during a real session. YouTube cautions that outbound speed can be lower than expected and that other people on the network share capacity; its streaming tips are worth checking alongside the test.
A speed test is a snapshot, not a guarantee of overnight performance. If a family member starts a large upload or a business system backs up files, the bandwidth available to OBS can change. Wi-Fi interference can also make a result vary from one moment to the next. When possible, connect the streaming computer to the router with Ethernet and avoid running other heavy upload tasks during the broadcast.
If the only confirmed number is 100 Mbps download, first find the provider’s upload specification, then measure upload on the actual stream connection. If it is 100 Mbps sustained upload, that is a more promising starting point, but it still does not prove stability or account for shared use. A reader producing a long loop may also want to distinguish the computer’s local workflow from the connection requirement; how a meditation livestream can run from a playlist instead of OBS explores that separate operational question.
Calculate usable upload budget and leave headroom
YouTube advises leaving 20% upload headroom. Applied to a measured 100 Mbps upload connection, that means treating roughly 80 Mbps as a practical upper budget for the stream rather than targeting the full measured line rate. This is arithmetic from YouTube’s recommendation, not a separate YouTube bitrate limit.
Both of YouTube’s recommended video targets sit below that illustrative 80 Mbps budget. But the gap is not permission to ignore variation: the budget must accommodate video, audio, protocol overhead and changes in available upload. If the line is shared or fluctuates, leave more margin rather than treating 80 Mbps as a fixed safe ceiling.
The calculation is simple: take the upload speed you can repeatedly measure under realistic conditions, then reserve at least the advised headroom. Compare what remains with the chosen codec’s video target, while remembering that the video figure is not the entire network load. If you have only measured a brief peak, repeat the test at different times and observe whether the result holds before committing to a long live session.
A large upload figure does not cure a weak or busy local network. A 100 Mbps line can be a poor streaming connection if another device consumes much of its upload, while a lower but steady line may be more usable for a less demanding configuration. For creators considering a low-data workflow, batch-compressing videos for YouTube Live on a low-data connection may help with source files, though it does not change YouTube’s live encoder recommendation for a selected 4K60 codec.
If your repeatable upload budget cannot sustain the chosen target with margin, change one of the variables: use a lower resolution or frame rate, choose a supported codec with a lower published target, or arrange a more reliable upload connection. Do not simply set OBS to a number that the connection cannot consistently carry. A lower, stable stream is generally more useful than a nominally higher-quality stream that repeatedly drops frames or disconnects.
Set OBS output to CBR
In OBS, open the output settings for the streaming encoder and set rate control to CBR. Constant bitrate is YouTube’s guidance for live encoder settings. It asks the encoder to maintain the configured target instead of varying the bitrate in response to each moment of the scene.
Set the video bitrate to match the YouTube recommendation for your codec: 50 Mbps for H.264 or 35 Mbps for AV1 or H.265/HEVC at 2160p60. OBS labels and available options can vary with the selected encoder, so check that you are editing the streaming output rather than the recording output. YouTube’s published target remains distinct from whatever an OBS build or network test happens to sustain.
If OBS reports encoding lag, that points to the computer’s ability to encode the workload, not automatically to the internet connection. If YouTube reports network issues or OBS shows dropped frames due to network, investigate upload capacity and sharing. The distinction matters: reducing bitrate may ease a network bottleneck, while lowering encoder complexity or output demands may help a hardware bottleneck.
For a channel built around a fixed video loop, plan the output resolution deliberately rather than assuming a 4K source makes a 4K live output necessary. The content and encoder can be different things: an existing recording can be prepared for a more modest stream profile if that better fits the available connection. For long-running streams, a cloud service and running a 24/7 YouTube channel from India with your PC off covers a different way to handle the computer-running-all-night concern; it does not alter the bitrate decision for OBS on a local machine.
Set the two-second keyframe interval
Set the keyframe interval to two seconds. YouTube recommends that interval and says not to exceed four seconds. A keyframe is a complete reference image in the encoded stream; the interval controls how often one is inserted. It is a separate setting from bitrate, so changing one does not substitute for setting the other.
In OBS, find the keyframe interval field in the selected encoder’s streaming output options. Some encoders accept a value in seconds and others may expose frames or an automatic option. Use the encoder’s own unit carefully: at 60 fps, a two-second interval corresponds to 120 frames if the field expects frames. Confirm the displayed setting after applying it rather than relying on a remembered default.
If a custom stream key or manual configuration is involved, verify the output resolution and frame rate in the YouTube Live Control Room as well. YouTube can detect these automatically by default, and its encoder setup documentation describes selecting the stream resolution manually for a custom stream key. The YouTube encoder setup instructions explain the relevant control-room steps.
Choose RTMPS and verify the stream preview
YouTube supports RTMP and RTMPS, and recommends RTMPS. Choose the RTMPS server option in OBS when it is available. RTMPS is the secure extension of RTMP; selecting it does not make an unstable connection stable, but it follows YouTube’s preferred protocol.
Copy the stream key carefully into OBS and keep it private. A key gives the encoder access to send to the associated stream, so do not paste it into a public post or share a screenshot containing it. In Live Control Room, confirm that the incoming signal is detected and that the preview appears before starting a public broadcast.
Check the preview for the actual output you intend to send: resolution, frame rate, picture, and audio. YouTube transcodes live video into multiple viewer formats, so what viewers receive may not be identical to the raw encoder output. Also note the latency trade-off: YouTube says 4K/2160p live streams are optimised for quality at normal latency, and the low-latency option is unavailable at that resolution. If rapid audience interaction matters more than 4K, consider whether a lower output resolution is a better fit.
Test stability before the live session
Do a private or otherwise non-public test before relying on the setup for a scheduled stream. YouTube advises testing with audio and movement similar to the planned event, then watching stream health and messages. A static test screen may not reveal the same encoder load or bitrate behaviour as footage with motion, transitions or changing scenes.
During the test, keep OBS’s statistics visible and note whether frames are being lost to network conditions or whether encoding is falling behind. In Live Control Room, watch the stream health information and any warnings. If there is a problem, change one factor at a time: check the cable and router path, stop other uploads, lower the target bitrate, or reduce output demands. Retest after a change; a single successful minute does not establish that an all-night stream will hold.
For a 24/7 channel, consider the ordinary conditions across a full operating period: household activity, scheduled backups, power interruptions and the possibility of a router reconnect. Maintain a fallback profile you can switch to if the higher target proves unreliable. The point is not to chase the largest setting but to choose the highest quality that your real connection and encoder can sustain with margin.
StreamNeo can remove the specific burden of keeping your own computer on overnight: you upload a video, provide the YouTube stream key, and the file is broadcast from the cloud with monitoring and automatic restart if it drops. That does not change YouTube’s codec guidance or make a local 100 Mbps plan relevant to a cloud-run broadcast; it addresses the separate problem of leaving a computer running continuously.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
What bitrate should I use for 4K 60fps YouTube Live in OBS?
YouTube’s published recommendation is 50 Mbps video with H.264, or 35 Mbps with AV1 or H.265/HEVC. Use CBR and a two-second keyframe interval, then test the selected encoder and connection rather than treating the recommendation as a performance guarantee.
Is 100 Mbps upload enough to stream 4K 60fps?
It can be enough on paper if 100 Mbps is sustained upload available to the stream, because YouTube recommends keeping 20% headroom. A speed test is still necessary, and shared use or variation may require more margin or a lower target.
Is 100 Mbps download enough for a 4K60 live stream?
Download speed alone does not answer that question because OBS sends the stream out. Check the plan’s upload rate and measure upload speed on the connection and computer you will actually use.
Should I choose H.264, AV1 or H.265?
Choose a codec your encoder supports reliably and that fits your workflow. YouTube’s recommended video bitrate is lower for AV1 and H.265 than for H.264 at 2160p60, but the recommendation alone does not establish that one codec will look better or perform better on your equipment.