The data used by a 24/7 FFmpeg YouTube stream follows its sustained output bitrate. At 1 Mbps, a stream sends about 324 GB in decimal units during a 30-day month, or about 302 GiB.
That is the VPS-to-YouTube upload stream, not the total data watched by your audience. Your actual transfer can be higher because of protocol overhead, reconnects, retries, monitoring traffic and other activity on the VPS, so treat the arithmetic as a planning estimate rather than an exact bill.
The short answer: transfer follows bitrate
A 24/7 stream running at 4.5 Mbps sends about 1.458 TB in decimal units over 30 days. A 10 Mbps stream sends about 3.24 TB. The VPS being in India does not change this calculation; the bitrate and runtime do.
The important distinction is between bitrate and monthly transfer. Bitrate is the rate at which FFmpeg sends data, normally expressed in megabits per second, or Mbps. Transfer is the accumulated amount of data moved over a billing period, normally shown by a VPS provider as GB or TB.
If you double the bitrate and keep the stream running for the same amount of time, you double the calculated transfer. If you run at the same bitrate for a 31-day month instead of a 30-day month, the estimate is also higher because the stream runs for longer.
For example, a devotional loop encoded at 4.5 Mbps and a news loop encoded at 4.5 Mbps use the same calculated amount of outbound data. The subject matter, file length and number of scenes do not change the transfer once the output bitrate is held constant. Codec, resolution and frame rate influence the bitrate you choose, but the bitrate is what drives the monthly total.
YouTube's official live encoder guidance recommends particular settings by resolution, frame rate and codec. Use those settings as a starting point, then check what FFmpeg is actually producing rather than relying only on the resolution label.
The 30-day bitrate calculation
A 30-day month contains 720 hours, or 2,592,000 seconds. For a sustained bitrate, the basic calculation is:
monthly bytes = bitrate in bits per second × seconds in the month ÷ 8
For 1 Mbps:
1,000,000 × 2,592,000 ÷ 8
= 324,000,000,000 bytes
= 324 GB decimal
The division by eight converts bits into bytes. This is why 1 Mbps does not mean 1 GB per second, and why a seemingly modest streaming bitrate becomes a large monthly transfer figure when it runs without stopping.
A useful shortcut for a 30-day month is:
1 Mbps ≈ 324 GB decimal
1 Mbps ≈ 302 GiB
Multiply either figure by your sustained bitrate. At 4.5 Mbps, the decimal calculation is 324 GB × 4.5, which gives 1,458 GB, or 1.458 TB. At 10 Mbps, it is 3,240 GB, or 3.24 TB.
These figures assume that the stated bitrate is maintained continuously for exactly 30 days. That is a clean way to compare configurations, but it is not a record of what a provider will necessarily bill. A real stream may stop briefly, reconnect, resend data, produce a slightly different rate, or share the machine with other traffic.
The number you need from your FFmpeg configuration is the total output bitrate. If video is set to 4 Mbps and audio is set to 128 Kbps, the stream is not simply a 4 Mbps video stream for accounting purposes. Audio, container data and transport overhead also need room. Depending on the configuration, FFmpeg may report the relevant rate in the output log or through its progress information.
A 31-day month has 2,678,400 seconds. At the same bitrate, that is about 4.4 per cent more runtime than a 30-day month. If your provider bills by calendar month, use the longer period when you want a conservative estimate. If the provider uses a fixed 30-day cycle, calculate against that cycle and still leave headroom.
Examples at common YouTube bitrates
The table below uses H.264 recommendations from YouTube's live encoder guidance. It assumes continuous operation for 30 days and treats the stated bitrate as the sustained total stream bitrate for simple arithmetic. These are estimates, not VPS bills.
| Example | Bitrate | Decimal transfer for 30 days | Approximate binary amount |
|---|---|---|---|
| 360p30 or 480p30 | 4 Mbps | 1.296 TB | 1,207 GiB |
| 720p30 or 720p60 | 8 Mbps | 2.592 TB | 2,414 GiB |
| 1080p30 | 10 Mbps | 3.240 TB | 3,017 GiB |
| 1080p60 | 17 Mbps | 5.508 TB | 5,129 GiB |
| 1440p30 | 21 Mbps | 6.804 TB | 6,337 GiB |
| 1440p60 | 34 Mbps | 11.016 TB | 10,260 GiB |
| 2160p30, or 4K30 | 42 Mbps | 13.608 TB | 12,678 GiB |
| 2160p60, or 4K60 | 50 Mbps | 16.200 TB | 15,089 GiB |
The table is useful for sizing transfer, but it should not be read as a universal rule that every stream at a particular resolution must use exactly that amount. YouTube lists different recommendations for H.264, AV1 and H.265. The suitable setting also depends on frame rate and the content itself.
For instance, a static bhajan background may look acceptable at a lower bitrate than a fast local-news sequence with frequent cuts, scrolling text and camera movement. That does not remove the need to check YouTube's guidance or test the actual stream. It simply shows why resolution alone is not enough information for a transfer calculation.
YouTube's H.264 guidance includes 10 Mbps for 1080p30 and 17 Mbps for 1080p60. If those are the settings you choose, the table gives a planning estimate of about 3.24 TB and 5.51 TB respectively for 30 days, before additional traffic and accounting differences.
For a 4.5 Mbps FFmpeg stream, the calculation is 1.458 TB decimal. Some descriptions may round that to about 1.4 TB, depending on the chosen rounding or unit convention. Showing the formula avoids confusion when two pages use slightly different rounded figures.
YouTube also gives audio guidance, including 128 Kbps for stereo and 384 Kbps for 5.1 audio. Treat the chosen video and audio settings as parts of one output configuration. Do not add a video-only estimate to a separate audio estimate unless you are certain the figures describe different parts of the same stream.
Before moving a loop to a VPS, it is worth using a bitrate testing checklist and watching the output rather than assuming that the command line behaves exactly as intended.
Decimal GB versus GiB
VPS dashboards do not always use the same unit language. Decimal units use powers of 1,000:
1 GB = 1,000,000,000 bytes
1 TB = 1,000 GB
Binary units use powers of 1,024:
1 GiB = 1,073,741,824 bytes
1 TiB = 1,024 GiB
The 1 Mbps, 30-day result is 324 GB decimal, but approximately 301.7 GiB. The bytes are the same; the displayed number changes because the units use different definitions. Calling 324 GB “324 GiB” would overstate the binary amount.
For practical planning, first identify the unit used by the provider's transfer allowance. If a plan says 3 TB, check whether the provider defines that as 3,000 GB decimal or uses a different display convention. If the dashboard says GiB, compare it with the binary column rather than the decimal column.
This matters near an allowance boundary. A stream calculated at 3.24 TB decimal is not the same as 3.24 TiB. It is approximately 3.02 TiB. That difference may not matter when you have plenty of spare capacity, but it matters when you are selecting a plan with a narrowly sized transfer limit.
You can keep your own spreadsheet in bytes, then display both decimal and binary results. Use the same convention for the allowance, the estimate and the observed dashboard reading. This is more reliable than comparing the provider's headline number with a calculator that silently uses another unit system.
The YouTube 24/7 live stream requirements guide is useful for checking the other parts of the setup, but it does not replace the provider's definition of a transfer unit. You need both: a valid YouTube encoder configuration and a clear understanding of the VPS account's measurement.
Protocol overhead and other traffic
The bitrate calculation describes the media payload at a sustained rate. It does not promise that the provider's network meter will show exactly that amount. The stream is carried over a transport protocol, and the packets include headers and control information in addition to the encoded audio and video.
YouTube recommends RTMPS for live ingestion and describes encryption through Google's servers. Whether your FFmpeg command uses RTMP or RTMPS, the provider's accounting may measure traffic at a level that includes more than the media payload. Check the provider's documentation rather than applying a universal overhead percentage, because the accounting method and displayed unit can differ.
Reconnects are another reason not to treat the table as an exact bill. If FFmpeg loses the connection and retries, the session may send connection traffic again and may retransmit data. A short interruption could reduce the total media sent, while repeated attempts and diagnostic activity could add traffic. The direction and size depend on what happened, so it is safer to leave headroom than to invent a fixed allowance for retries.
Other traffic on the VPS can also count. Examples include:
- Uploading a replacement video or a new audio track.
- Downloading FFmpeg packages, updates or media files.
- Sending logs or monitoring data to another service.
- Running a second stream or a temporary test stream.
- Using a control panel, backup process or remote file transfer.
A machine dedicated to one continuous stream is easier to estimate than a general-purpose VPS hosting websites, file downloads and several channels. If you are running multiple channels, calculate each channel separately and add them before comparing the total with the allowance.
Do not simply add a large arbitrary percentage and call the result accurate. Instead, calculate the media transfer, identify the other traffic you expect, and add operational headroom appropriate to your own setup. Then compare the result with the provider's overage, throttling or suspension terms.
Why viewer playback is not server egress
The VPS sends one ingest stream to YouTube. YouTube then processes that incoming stream and creates output formats for viewers. The viewers' playback data does not travel from your VPS to every viewer.
This is why a channel with a large audience does not automatically multiply the VPS's outbound transfer in the same way that a self-hosted video server would. The VPS-to-YouTube path is the traffic you are sizing here. YouTube's own systems handle the distribution from the live ingest to viewers.
YouTube states that it will transcode a live stream into different output formats so viewers across devices and networks can watch. That statement explains the separation between ingest and playback, but it does not mean that your VPS has unlimited capacity for unrelated traffic or that the stream cannot fail because of a weak connection.
Your VPS still needs a sustained network path capable of sending the configured bitrate. If the stream is set to 10 Mbps, the server needs to maintain that upload rate for the stream, with enough network margin for protocol behaviour and any other activity. A provider's monthly transfer allowance and its network speed are separate questions.
The audience can watch at different quality levels, pause, leave, or join later without changing the one ingest stream sent by FFmpeg. Viewer playback may affect your YouTube analytics and the platform's processing, but it is not a reason to multiply the VPS transfer estimate by the number of viewers.
This distinction is especially important when comparing a self-managed VPS with a cloud service designed for pre-recorded streaming. A managed service can remove the need to keep your own computer online, while a VPS gives you direct control over FFmpeg and its logs. Compare the transfer model, maintenance work and recovery process rather than assuming that every “streaming” product measures traffic in the same way.
Check the VPS transfer accounting before buying
Do not choose a VPS by looking only at CPU, memory or the server's location. Before you pay, find the provider's current page or support documentation and check these points:
- What counts as transfer. Confirm whether the allowance covers outbound traffic only, both directions, or a combined total. Some providers may describe this as bandwidth, traffic or transfer.
- Which units are used. Check whether the dashboard and allowance use GB, TB, GiB or TiB, and whether the provider explains the conversion.
- The billing period. A monthly allowance may reset on a calendar date, on the account anniversary, or according to another cycle.
- Overage behaviour. Find out whether excess transfer is billed, throttled, suspended or handled in another way. Do not assume that an allowance silently expands.
- Port speed and sustained use. A large monthly allowance does not prove that the VPS can maintain your chosen upload bitrate without congestion or restrictions.
- Monitoring visibility. Check whether you can see current transfer usage and whether the figures update immediately or with a delay.
- Multiple machines and services. Confirm whether the allowance applies to one VPS, an account, a region or a group of services.
A transfer estimate must cover the FFmpeg stream and any other outbound traffic that the provider counts. If your arithmetic is close to the stated allowance, choose a different configuration or a plan with more room rather than relying on perfect conditions.
The Indian Council for Cultural Relations' live-streaming procurement document illustrates a related planning principle: upload capacity depends on the combined bitrates of the streams being sent. That is an event-production example, not a current VPS allowance or a universal standard, but the underlying calculation is useful when several outputs share one connection.
Keep a simple operating record for the first part of the month. Note the FFmpeg bitrate, start and reconnect times, other uploads, and the provider's reported transfer. If the dashboard is already rising faster than your media-only estimate, investigate the traffic before the allowance becomes a problem.
If the maintenance burden is the main concern, a managed continuous-stream workflow can remove the need to keep your own machine running and to recover FFmpeg after every failure. StreamNeo is suited to the specific pain of uploading a file once, connecting the YouTube channel and having the continuous broadcast monitored and restarted without leaving your computer switched on, while you still need to choose the media settings and check YouTube's current requirements.
For the rest of the channel, consider whether a cloud service for pre-recorded YouTube live streams is a better fit than maintaining Linux packages, logs, storage and restart scripts yourself. A VPS is the better choice when you need shell access, custom FFmpeg commands or direct control over the operating environment. It is not automatically the cheaper or simpler choice once transfer and maintenance are included.
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
Does 1 Mbps really use 324 GB in a month?
At a continuous 1 Mbps for exactly 30 days, the arithmetic is 324 GB in decimal units, or approximately 302 GiB. That is the media-rate estimate before protocol overhead, reconnects, retries and other traffic. A provider's measured usage can therefore differ.
How much data does a 10 Mbps stream use?
A continuous 10 Mbps stream sends about 3.24 TB decimal in a 30-day month, or approximately 3,017 GiB. This assumes the stated bitrate remains steady and does not include additional server traffic. Check whether your VPS provider measures decimal or binary units.
Does having more YouTube viewers increase VPS transfer?
Not in the same way as hosting the video yourself. Your VPS sends the ingest stream to YouTube, and YouTube distributes output formats to viewers. Viewer playback is not the same as the VPS-to-YouTube upload, although other traffic and additional streams on the VPS still count according to the provider's rules.
Should I calculate using resolution or bitrate?
Use the actual total output bitrate. Resolution, frame rate and codec help you choose an appropriate bitrate, but bitrate and runtime determine the transfer calculation. Check YouTube's current guidance and test the FFmpeg output before selecting a VPS allowance.