What this calculator actually tells you
The calculation is deliberately simple: photo count multiplied by seconds per photo. It is useful for spotting an overlong sequence before production, comparing a tight hero-image edit with broader room coverage, and understanding the pacing trade-off between the compact 6-photo and 15-photo options and the longer Cinematic 30 path.
It does not measure watch time, buyer attention or conversion. Those outcomes depend on the property, creative quality, placement and audience, so the result should be treated as a planning estimate rather than a performance prediction.