720p (HD) at 120 fps — Bitrate & Storage Calculator
Instantly calculate the file size and bandwidth needed for 720p (HD) (1280×720) video at 120 fps. Adjust settings below.
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1280×720 @ 120fpsVideo Bitrate Range
Use These Settings in OBS
OBS → Settings → Output → Streaming
Codec Comparison
| Codec | Bitrate | File Size | vs H.264 |
|---|---|---|---|
| H.264 (AVC)active | 10.13 Mbps | 4.24 GB | 100% |
| H.265 (HEVC) | 6.13 Mbps | 2.57 GB | 61% |
| VP9 | 6.13 Mbps | 2.57 GB | 61% |
| AV1 | 5.13 Mbps | 2.15 GB | 51% |
| ProRes 422 | 35.13 Mbps | 14.72 GB | 347% |
| ProRes 4444 | 50.13 Mbps | 21.01 GB | 495% |
How Much Storage Does 720p (HD) at 120 fps Need?
Recording or streaming at 720p (HD) (1280×720) and 120 fps produces high-quality video, but file sizes can be substantial. The exact storage depends on the codec you choose — H.264 produces larger files, while HEVC and AV1 offer significantly better compression at comparable quality.
For example, a 10-minute 720p (HD) clip at 120 fps with H.264 can easily exceed several gigabytes. Professional workflows using ProRes will require even more space — making external SSDs and NAS systems essential for serious content creators.
Use the calculator above to get exact estimates for your specific settings, including audio quality and recording duration.
Frequently Asked Questions
How large is a 1-hour 720p (HD) 120 fps video file?
Using H.264, a 1-hour 720p (HD) video at 120 fps is approximately 4.24 GB. With HEVC (H.265), it drops to around 2.57 GB — about 40% smaller.
What bitrate should I use for 720p (HD) at 120 fps?
For 720p (HD) (1280×720) at 120 fps with H.264, a bitrate of 10.0 Mbps is recommended. Using HEVC or AV1, you can achieve similar quality at 6.0 Mbps.
What internet speed do I need to stream 720p (HD) at 120 fps?
You need at least 15.2 Mbps upload speed for 720p (HD) 120 fps streaming with H.264. With a more efficient codec like HEVC, 9.2 Mbps is sufficient. We recommend 1.5× headroom above your stream bitrate.
Is 720p (HD) at 120 fps good for YouTube/Twitch?
Yes, 720p (HD) at 120 fps is widely supported on YouTube, Twitch, and most streaming platforms. It offers a great balance of quality and file size for most content types.