Video File Size Calculator
Lifestyle ToolsBitrate × duration → MB/GB with bitrate presets
Video File Size Calculator: Bitrate × duration → MB/GB with bitrate presets. Video File Size Calculator uses standard everyday life formulas to compute accurate results instantly.
Steps
- 1Data = bitrate × time: 25 Mbps × 60 × 60 s = 90000 Mb
- 2Bytes = bits ÷ 8 = 11250 MB
- 3GB = MB ÷ 1000 = 11.25 GB
Quick reference
| Mbps | 10 min | 30 min | 60 min | 120 min |
|---|---|---|---|---|
| 5 | 0.375 GB | 1.125 GB | 2.25 GB | 4.5 GB |
| 8 | 0.6 GB | 1.8 GB | 3.6 GB | 7.2 GB |
| 12 | 0.9 GB | 2.7 GB | 5.4 GB | 10.8 GB |
| 16 | 1.2 GB | 3.6 GB | 7.2 GB | 14.4 GB |
| 25 | 1.875 GB | 5.625 GB | 11.25 GB | 22.5 GB |
| 45 | 3.375 GB | 10.125 GB | 20.25 GB | 40.5 GB |
- Bitrate (Mbps) dominates file size; resolution alone does not. 4K at low bitrate can be smaller than 1080p at high bitrate.
- OBS recording tip: use CQP/CRF quality mode for near-lossless masters; platforms re-encode uploads anyway.
- Audio (128–320 kbps ≈ 1–2.4 GB per 10 h) is small but added on top; the third card includes 320 kbps.
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How to Use
- Enter scenario values: fill real-life numbers into the Video File Size Calculator (defaults work for a quick try).
- Instant results: everything computes live, no button needed.
- Read the advice: results come with practical tips, reference standards and pitfalls.
- Compare options: adjust parameters to compare choices side by side.
Key Points
- Video File Size Calculator is a free online everyday life tool — open and use, no sign-up.
- All calculations run locally in your browser; your data never leaves the device.
- Key capability: Bitrate × duration → MB/GB with bitrate presets.
- Results come with formulas and reference tables so you can verify every number.
Formula & How It Works
Video File Size Calculator formula
FAQ
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Source & Updates
Based on common formulas and industry conventions. Last updated: 2025-07
Last updated:
Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.
Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.
Cite this page: YiJianSuan. Video File Size Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/video-size
Results provided by this tool are for reference only and do not constitute professional advice.