Footage Storage Calculator — ProRes, H.264, H.265 estimates

This calculator makes it easy to budget storage for a shoot or edit without digging through codec whitepapers. Choose a preset for ProRes 422 variants, H.264, or H.265—or enter any custom bitrate. Then set your duration to see total GB/TB, per-hour usage, and the bitrate being used. Because the math is simple (bitrate × time), the tool runs entirely in your browser with no uploads.

The preset table gives quick reference values for common 4K UHD workflows. If you’re shooting proxies and camera originals simultaneously, run the calculation twice and add the totals. Custom bitrate input is helpful when a camera offers variable bitrate modes or when you want to include audio or metadata overhead—just enter the combined figure.

Use the per-hour readout to plan drive swaps or card offloads on set. The tool also works for lower resolutions; enter the appropriate bitrate (e.g., 1080p H.264 at 10 Mbps) and you’ll get the same clear totals. Everything works offline once loaded—ideal on location with spotty connectivity.