Reference chart:

≤75 sq ft → 29-36" (Small bathroom/closet)

≤144 sq ft → 36-42" (Small bedroom/office)

≤225 sq ft → 44-50" (Medium bedroom/kitchen)

≤400 sq ft → 50-54" (Large living room)

≤400+ sq ft → 56-72" (Great room/open plan)

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About Fan Size

Fan Size solves a specific problem that comes up daily for anyone dealing with this task: doing it once, fast, without an account. Everything happens client-side, which means your files and data never leave your machine. The interface is intentionally minimal so you can focus on the task instead of learning the tool. It pairs naturally with the other utility utilities here when you need to chain a quick workflow.

When you'd reach for Fan Size

  • You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

    Marketers and ops people whose primary tool is metered.

    Stay productive without burning credits.

  • You're on a public or shared machine and don't want to leave traces of what you're working on.

    Travelers, contractors, anyone working from a friend's computer.

    Nothing is uploaded, nothing persists if you're not signed in.

  • You need to handle a one-off task right before a meeting and don't have time to install anything.

    Anyone working remotely on a borrowed or restricted machine.

    Open the page, get the result, paste it into your doc — under a minute.

  • You're cleaning up a folder of files that accumulated over a project and need to standardize them.

    Designers, writers, and developers wrapping up deliverables.

    Drop each file in, copy the output, move on.

Frequently asked about Fan Size

What browsers does Fan Size support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Are my files uploaded to a server when I use Fan Size?
Fan Size processes everything in your browser using local APIs. Your files never leave your device.
Can I use Fan Size commercially?
Yes. The output of Fan Size belongs entirely to you, with no licensing restrictions.
Is Fan Size really free?
Yes — Fan Size is free for unlimited personal use, with no account required and no watermark on the output.
Does Fan Size work on mobile?
Yes, Fan Size is fully responsive and tested on iOS Safari and Android Chrome.

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