Social Video Bitrate & File-Size Calculator (Plus Weekly Storage Estimator)
Exporting a 60-second vertical video at an inflated 60 Mbps bitrate won't make it look sharper on TikTok or Instagram Reels—it just forces platform servers to aggressively re-compress your upload. Use this interactive calculator to estimate your exact MP4 file size, pick a balanced target bitrate, and calculate how much phone or SSD storage your weekly filming schedule requires.
Interactive Bitrate & Storage Estimator
*Note: These figures are mathematical storage estimates based on constant bitrate (CBR) math: File Size (MB) = (Total Bitrate in Mbps × Duration in Seconds) ÷ 8. Variable bitrate (VBR) exports and platform transcoding will vary based on scene complexity and motion.
H.264 vs. HEVC (H.265) for TikTok, Reels & Shorts
When choosing your export preset in CapCut, Premiere Pro, or DaVinci Resolve, codec selection determines both file size and device playback compatibility:
| Codec (.mp4) | Recommended 1080p Bitrate | Compatibility & Tradeoffs |
|---|---|---|
| H.264 (AVC) | 15 – 20 Mbps (VBR) | Universal compatibility across web browsers, Android, iOS, and all social schedulers. |
| HEVC (H.265) | 8 – 12 Mbps (VBR) | ~40% smaller file size at equal visual quality, but older Windows browsers or third-party schedulers may reject uploads if tagged as HDR/10-bit. |
For deeper troubleshooting on washed-out HDR colors or blurry uploads, read our Cross-Posted Video Blur & Color Fix Guide.
Keep Running Out of Phone Storage? Clip in the Cloud with OpusClip
Instead of storing massive 50 GB raw 4K files on your phone, paste your YouTube or cloud link into OpusClip. It processes your footage in the cloud, extracts the best vertical hooks, adds animated captions, and exports pre-optimized 1080p MP4 clips.
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