Target resolution presets
Choose 1080p Full HD for YouTube, 720p HD for fast Discord sharing, or 480p SD for small email attachments. Video scaling preserves standard 16:9, 9:16 vertical, and 1:1 square aspect ratios.
Bitrate calculation formula
Target File Size (MB) = (Video Bitrate kbps + Audio Bitrate kbps) × Duration (seconds) ÷ 8,192. Use our interactive estimator to hit exact file size caps.
Getting a trustworthy result
MP4 Video Resizer & Compressor runs entirely in your browser from the numbers you enter. Check the methodology notes above, then compare with a related calculator or a short guide if you want a second pass before you decide.
What to do next
If prices or rates sparked this visit, glance at Markets. If you want a walkthrough, open a related guide. Or switch to another calculator in the same category to finish the task in one sitting.
FAQ
How do I compress a video to under 25MB for Discord?
Select the Discord 25MB preset; the tool automatically calculates the exact target video bitrate and resolution required for your video's duration.
Does video resizing reduce quality?
Scaling down resolution removes excess pixels, which reduces file size while maintaining sharp clarity on mobile screens.
Is the MP4 Video Resizer & Compressor free?
Yes. It runs in your browser with no account required.
Where should I go after using this tool?
Try related tools in the sidebar, Markets for live-style price snapshots, or Blog guides that link back into calculators.