🍋 Video Tools
File Size Estimator
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About File Size Estimator
Estimate video file sizes based on duration, resolution, and codec. Compare sizes across quality presets for storage and bandwidth planning.
How It Works
Enter duration and specifications to get file size estimates across multiple codecs and quality presets.
Frequently Asked Questions
How big is a 1-hour 1080p video?
H.264 high quality: ~5-7 GB. H.265: ~3-4 GB. VP9: ~2.5-3.5 GB. Low-quality streaming: 1-2 GB.
Why do different codecs produce different sizes?
Newer codecs use more advanced compression. AV1 can match H.264 quality at roughly 50% the file size.