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Project calculator

Plan a faceless video before you build it. Enter how many frames and how long each spoken line is — FoxFlow estimates the runtime, the ElevenLabs characters you'll spend, whether it fits the FREE daily limit, and how much editing time you save.

Number of frames One frame ≈ one image and one spoken line.

Characters per line Average length of a voiceover line. ~90 is one short sentence.

Approx. runtime

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ElevenLabs characters

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FREE limit (50/day)

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Manual editing saved

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Enter your numbers above.

How the estimate works

Runtime uses FoxFlow's own formula: each frame holds for about half a second of motion plus its voiceover, paced at roughly 60 characters of speech per second. ElevenLabs bills per character, so total characters = frames × characters per line. The FREE plan allows 50 frames per day, so larger projects are split across days.

"Manual editing saved" compares against assembling the same project by hand in a video editor — importing each frame, aligning each voice line, exporting — which realistically runs a few minutes per frame.

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