Will quality drop when I compress to 25MB?

Short clips remain crisp in 1080p. For longer walkthroughs, switching to 720p or HEVC/AV1 keeps detail while respecting the size limit.

Compress video to 25MB (Exact Size)

Q: How do you hit the exact size?

FitToMB calculates the bitrate required for a 25MB output and performs a two-pass encode so the final file lands on target.

Q: What if my output is slightly under 25MB?

Coming in a little under ensures email and portal uploads succeed. Increase the bitrate slider slightly if you want to use the full 25MB.

Q: Does it work on iPhone and Android?

Yes. You can upload and download directly from Safari, Chrome, or any modern mobile browser. Output is an MP4 that plays everywhere.

25MB is the sweet spot for email attachments and client portals. Drop a file and FitToMB dials in the bitrate for an exact 25MB result.

Drop video or click to upload · Presets: 8MB · 10MB · 25MB · 50MB · 100MB

Hit 25MB without guesswork

25MB clears most email gateways while staying friendly to help-desk portals and LMS uploads. FitToMB auto-tunes the bitrate so you can focus on delivering the message, not trimming footage. Need tips for the inbox? See the email compression guide, and for community sharing read the Discord size playbook.

Steps to compress a video to 25MB

Upload your video. Drag and drop any MP4, MOV, MKV, or WebM file-no account required.
Pick the 25MB preset. The tool locks the target size; you can also enter an exact megabyte value.
(Optional) Choose resolution. Keep 1080p for short clips or drop to 720p for multi-minute walkthroughs.
Compress & download. We run two-pass encoding to hit the exact target, then give you a ready-to-share MP4.

If you need to double-check the math, punch your runtime into the Video Bitrate Calculator-it pre-fills the main compressor with the right bitrate.

Need smaller? Hop to the 15MB or 20MB workflows for inbox replies, or drop to the 10MB tool for strict chats.

More breathing room? Head to the 50MB guide when portals allow larger uploads.

Different format? Use the MKV guide or WebM workflow to shrink container-specific exports.

Will your video fit at 25MB?

Here's a conservative look at what stays crisp around the 25MB mark.

Clip length	Suggested resolution	Target video bitrate	Notes
< 90 seconds	1080p @ 30 fps	~2,000 kbps	Looks great for quick explainers and webcam intros.
90-150 seconds	720p @ 30 fps	~1,200 kbps	Ideal for support walkthroughs destined for email replies.
150-210 seconds	720p @ 24 fps	~950 kbps	Drop the frame rate a touch to keep motion natural.
> 210 seconds	540p @ 24 fps	~750 kbps	Consider trimming or splitting for knowledge-base uploads.

FAQ

How do you hit the exact size?

We calculate the precise bitrate for a 25MB output, then run two-pass encoding. That second pass checks size against the target and adjusts automatically.

What if my output is slightly under 25MB?

Being a little smaller is normal-we bias toward coming in under the limit so uploads never fail. If you want to fill all 25MB, bump the bitrate slider up a notch and rerun.

Will quality drop?

Short clips stay in crisp 1080p. For longer videos, switch to 720p or HEVC/AV1. The preview panel shows the expected bitrate before you commit.

Does it work on iPhone and Android?

Yes. Upload from any modern browser on iOS, Android, macOS, or Windows. Output is an MP4 (H.264 + AAC) that plays everywhere.