A 24/7 YouTube stream uses about 324 decimal GB of upload data per month for every sustained 1 Mbps of combined audio and video bitrate, assuming an uninterrupted 30-day month. At 3 Mbps, that is about 972 GB; at 6 Mbps, about 1.94 TB. These are calculated estimates—not measured account totals—and apply to the broadcaster’s upload, not each viewer’s downloads.
Estimate monthly data from your stream’s bitrate
For a 30-day month, multiply the stream’s total bitrate in Mbps by 324 to estimate decimal gigabytes uploaded:
Monthly upload (decimal GB) ≈ total bitrate (Mbps) × 324
The calculation assumes 30 days of continuous streaming: bitrate × 1,000,000 bits per second × 2,592,000 seconds ÷ 8 ÷ 1,000,000,000. A 24/7 stream runs for 720 hours in that period. The result excludes other internet use, reconnects, and bitrate changes.
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| Combined bitrate | Estimated upload in 30 days | Approximate binary equivalent |
|---|---|---|
| 1 Mbps | 324 GB | 302 GiB |
| 3 Mbps | 972 GB (0.97 TB) | 906 GiB |
| 6 Mbps | 1,944 GB (1.94 TB) | 1.81 TiB |
| 10 Mbps | 3,240 GB (3.24 TB) | 3.02 TiB |
These are decimal GB and TB: 1 GB is 1,000,000,000 bytes. Binary units are larger per unit; 1 GiB is 1,073,741,824 bytes. If your internet provider reports usage in GiB, compare against that unit rather than treating GB and GiB as identical.
Adjust for a different billing period
- 28 days: about 302.4 decimal GB per sustained Mbps.
- 31 days: about 334.8 decimal GB per sustained Mbps.
Multiply the per-Mbps figure for your billing period by the stream’s combined bitrate. A billing period that does not align with the calendar month may require counting its actual number of days.
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Use the actual combined audio and video bitrate
Resolution alone does not determine monthly data use. The encoder’s bitrate setting is the useful input, and the total should include both video and audio. If you have a video-only bitrate, add the audio bitrate before applying the formula. If the encoder reports total output bitrate, use that number as-is rather than adding audio a second time.
YouTube Help’s current live encoder settings list these H.264 examples: 480p30 at a 0.4 Mbps minimum and 4 Mbps recommended; 720p30 at 3 Mbps minimum and 8 Mbps recommended; and 1080p30 at 5 Mbps minimum and 14 Mbps recommended. The recommendations vary by codec, resolution, and frame rate, so they are not a single data-use figure for each resolution. YouTube’s live encoder settings also list stereo audio at 128 Kbps (0.128 Mbps) and 5.1 audio at 384 Kbps (0.384 Mbps).
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| Example input | Combined bitrate | Estimated upload in 30 days |
|---|---|---|
| 0.4 Mbps video + 0.128 Mbps stereo audio | 0.528 Mbps | About 171 GB |
| 3 Mbps total | 3 Mbps | About 972 GB |
| 6 Mbps total | 6 Mbps | About 1,944 GB |
| 14 Mbps video + 0.128 Mbps stereo audio | 14.128 Mbps | About 4,577 GB (4.58 TB) |
The figures above are calculated estimates for 30 uninterrupted days. For your own stream, check whether the bitrate shown by your encoder includes audio, then use the total in the formula.
Broadcaster upload is not viewer data use
This estimate is the broadcaster’s outgoing contribution stream sent to YouTube. It is not the amount every viewer downloads. YouTube says it transcodes a live stream into multiple output formats for viewers, whose data use depends on their playback rendition, watch time, and connection or adaptive-playback behavior. The YouTube Live API documentation also distinguishes the incoming stream from the viewer-facing broadcast.
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Check your encoder and plan for real-world usage
- Find the configured bitrate. Check the streaming encoder’s output settings. Use the total audio-plus-video bitrate if shown; otherwise add the audio bitrate to the video bitrate.
- Calculate for the relevant billing period. Multiply the combined Mbps by 324 for 30 days, 302.4 for 28 days, or 334.8 for 31 days to get estimated decimal GB.
- Compare like units. Check whether your ISP’s data allowance is stated in decimal GB or binary GiB, and account for internet use beyond the stream.
- Test the planned stream. YouTube advises testing with audio and movement similar to the planned content and monitoring stream health. A calculation estimates data volume; it does not establish that a particular setup will sustain a 24/7 broadcast.
Actual account usage can differ if the bitrate changes, the stream reconnects, or other devices and services use the same connection. For a cap or allowance close to the estimate, leave room for those additional transfers.
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