Video Storage Calculator
Video File Size
Estimate video file size from settings and duration
Recording Capacity
How much recording time fits on available storage
Formula
File Size (MB) = Bitrate (Mbps) x Duration (sec) / 8 | Capacity (hrs) = Storage (GB) x 8 / Bitrate (Gbps) / 3600
Frequently Asked Questions
How much storage does 1 hour of 4K video use?
It depends heavily on the codec: H.264 at 4K/30fps uses about 20-30 GB/hour. H.265/HEVC cuts that to 10-15 GB/hour. ProRes (professional editing) uses 100-200 GB/hour. AV1 is similar to HEVC. Always check your camera/software settings for exact bitrate.
H.264 vs H.265 vs AV1 -- which codec should I use?
H.264 has universal compatibility. H.265 (HEVC) is ~50% more efficient but requires licensing fees and more CPU to encode. AV1 is royalty-free, ~30-40% better than H.264, but encoding is slow. For archival, use H.265/AV1. For live streaming, H.264 is safest for compatibility.
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