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There is no single storage requirement: it depends on the bitrate and duration of the video files you keep, not on the fact that your channel streams around the clock. As a planning estimate, YouTube’s recommended 1080p SDR upload bitrate of 8 Mbps works out to about 3.6 GB per hour of video, while its 4K SDR recommendation of 35–45 Mbps works out to about 15.75–20.25 GB per hour. Multiply the hourly figure by the hours of unique content you intend to retain, then allow separately for backups and working files.
Estimate storage from your actual video files
Use this formula for an approximate decimal storage estimate:
Bitrate in Mbps × 3,600 seconds per hour ÷ 8 ÷ 1,000 = GB per hour
Then multiply the result by the number of hours of unique video you plan to keep. For example, a 100-hour library encoded at 8 Mbps needs about 360 GB for the video data in one copy. The calculation uses the video bitrate alone; audio, container overhead, project files, alternate exports, and backups require additional space.
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The bitrate of your rendered files is the controlling input. Resolution helps you choose a planning example, but two cartoons at the same resolution can have different file sizes because their encoding settings and content differ. If you can inspect a representative export’s average bitrate or file size and duration, use those actual values rather than treating a recommendation as a measurement of your channel.
Planning examples using YouTube upload recommendations
YouTube Help recommends MP4 as an upload container and H.264 as a video codec. Its bitrate recommendations are upload guidance, not a required archive setting and not measured bitrates for a cartoon channel. The table applies the recommended video bitrate alone; values are approximate, use decimal GB/TB, and exclude overhead and backup copies. The daily and yearly columns assume 24 hours of unique material every day, retained without deletion for 365 days.
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| Example and bitrate assumption | Approx. per hour | Approx. per 24 hours | Approx. per 365-day year |
|---|---|---|---|
| 1080p SDR, standard frame rate (24, 25, or 30 fps), 8 Mbps | 3.6 GB | 86.4 GB | 31.5 TB |
| 4K SDR, standard frame rate (24, 25, or 30 fps), 35 Mbps | 15.75 GB | 378 GB | 138 TB |
| 4K SDR, standard frame rate (24, 25, or 30 fps), 45 Mbps | 20.25 GB | 486 GB | 177.4 TB |
For these upload recommendations, YouTube lists 12 Mbps for 1080p SDR at high frame rates (48, 50, or 60 fps), and 53–68 Mbps for 4K SDR at those frame rates. For HDR at standard frame rates, it lists 10 Mbps at 1080p and 44–56 Mbps at 4K. Its recommended stereo audio bitrate is 384 kbps. These are YouTube Help figures for upload encoding; your own exports may be larger or smaller. See YouTube’s recommended upload encoding settings (Google, accessed 2026).
Count unique content, not broadcast hours
A 24/7 schedule describes how long the channel is live, not necessarily how much distinct material its archive contains. If you loop the same 10 hours of cartoons continuously, the unique library is those 10 hours of files; you do not need a new 24-hour set for every day of the broadcast. If you produce new episodes to fill a full day and keep each day’s programming, estimate against the full 24 hours of new material per day.
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For a rolling archive, multiply the hourly estimate by the hours retained. For instance, keeping 30 days of unique programming at 24 hours per day means estimating for 720 hours. Keeping only a selected set of episodes means adding their durations instead. State whether your plan covers unique files, a rolling window, or an ongoing collection; those choices change the answer more than the “24/7” label.
Plan for copies and working files
The table estimates one copy of encoded video. Your usable capacity target should reflect what else you intend to store, rather than an assumed universal safety percentage:
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- Audio and file overhead: the calculations use video bitrate alone; audio tracks and the MP4 container add data.
- Source projects: animation assets, editing projects, and uncompressed or intermediate files can add substantial storage beyond finished exports.
- Alternate renders: retain separate language versions, aspect ratios, or quality versions only if your workflow needs them.
- Backups: count each additional full copy. Two complete copies of a library require approximately twice the library’s file capacity, before overhead and other files.
- Growth: if you expect to add episodes, estimate the new unique hours over your planning period and include them in the total.
No general extra-capacity percentage is established by YouTube’s upload guidance. Choose an explicit allowance based on your own projects, versions, growth, and backup plan.
How to make a storage plan you can trust
- Choose the retention rule. Decide how many unique hours or days you will keep, and whether older programs are deleted or retained indefinitely.
- Measure representative exports. Check the duration and file size of typical finished cartoons, including any audio tracks you normally include. A sample from a complex episode and one from a simpler episode can reveal how much sizes vary.
- Calculate from the files. Divide file size by duration for a direct per-hour estimate, or use the bitrate formula above. Multiply by your retained unique hours.
- Add separate categories. Account for project files, alternate exports, audio, and every backup copy you plan to keep.
- Choose the storage arrangement. Decide whether the library must be online for your streaming workflow, portable, or backed up elsewhere. Check that usable capacity—not just the device’s advertised capacity—covers your plan.
Storage is separate from keeping the live stream running
Archiving a cartoon library and broadcasting it continuously are related but separate needs. The storage calculation tells you how much space the retained files occupy; it does not determine whether a computer or streaming service can keep a YouTube broadcast running.
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