How large will your
video export be?
Duration + resolution + codec = file size. Get an instant estimate and see if it fits TikTok, Reels, and Shorts upload limits before you export.
File Size Estimator
FREEDuration
Resolution
Codec
Audio bitrate
Estimated file size
30.5 MB
8.13 Mbps total bitrate
Platform upload limits
Bitrate breakdown
All calculations run in your browser. Nothing is sent to any server.
How Video File Size Estimator works
Set duration, resolution, and codec
Use the controls to describe your planned export. Audio bitrate is optional but included for accuracy.
Read the size estimate
The calculator multiplies bitrate × duration to produce MB and GB — the same math encoders use.
Check platform limits
Instant green / amber / red indicators show whether your export fits each platform's upload cap.
Everything you need to create
stunning videos.
From avatars and voiceovers to captions and exports — all in one place.
Tech Enthusiast
EN · JP
Outdoor Adventurer
EN · DE
Industry Consultant
ES · FR
Senior Executive
EN · ZH
AI Avatars
Choose from 50+ realistic AI avatars. Each speaks naturally with perfect lip-sync, available in 30+ languages.
Get started One tool. Every feature.
Zero learning curve.
Tell us a bit more (Optional)
Create a 60-second TikTok video about the most surprising facts about the Roman Empire, ending with a call to follow
AI Script Generator
Write or generate your video script automatically. Pick a style and let the AI do the rest — or edit it yourself.
Charlotte
Swedish, Female
Lily
British, Female
James
American, Male
50+ Unique Voices
Pick from male and female voices across 30+ languages. Preview any voice before generating.
Realistic AI Avatars
Choose from 50+ hyper-realistic avatars with perfect lip-sync. No green screen needed.
Select a style or pick a template
Video Styles & Templates
TikTok shorts, YouTube docs, product demos — all with dedicated templates optimized for each platform and format.
Anime
Neon
Pixar
Ghibli
Watercolor26+ AI Visual Styles
From cinematic realism to anime, neon, Ghibli, and pixel art — pick a style and every scene is generated to match it.
1920 × 1080
High-Quality — Forever Yours
Export crisp 1080p or 4K videos. Download once and keep forever — even if you cancel.
Works with every platform you use
Export optimized for every platform
Every video format, powered by AI.
From product demos to viral social ads — generate studio-quality videos for any use case in minutes, no editing skills required.
Product Demos
Turn features into 60-second videos that sell
TikTok Shorts
Viral-ready vertical videos that stop the scroll
YouTube Shorts
Short-form content that grows your channel fast
Social Ads
High-converting creatives for every platform
See what you can create.
TikTok stories, YouTube docs, product demos — all generated in under 5 minutes.
Rainy Night in Tokyo
AI Avatar Product Demo
Why Bitcoin Is Digital Gold
Rich Mindset Breakdown
Multi-Scene Showcase
Sync & Dance Duo
More free tools
Generate platform-optimised videowithout the export guesswork.
Lumigen outputs TikTok, Reels, and Shorts at the right codec and bitrate automatically — no manual export settings, no format anxiety. Start free.
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