3.55 GPM

Flow rate: 13.45 LPM

Velocity: 2.58 ft/s

Pipe area: 0.442 sq in

Simplified estimate using Torricelli-based velocity. Actual flow depends on pipe length, fittings, and roughness.

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About Flow Rate

Flow Rate was built for the moment you just need to handle this task and move on — no signup, no upload to a third-party server. Processing runs locally in your browser using modern Web APIs. Nothing is uploaded, nothing is logged, and there is no quota to worry about for casual use. If you find yourself doing this regularly, the rest of the utility suite covers most adjacent tasks with the same approach.

When you'd reach for Flow Rate

  • 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'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 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 Flow Rate

What browsers does Flow Rate support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Is Flow Rate really free?
Yes — Flow Rate is free for unlimited personal use, with no account required and no watermark on the output.
Do I need to create an account to use Flow Rate?
No. Flow Rate works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
Will Flow Rate change my original file?
Never. Flow Rate only reads your input file and produces a new output file.
Does Flow Rate work on mobile?
Yes, Flow Rate is fully responsive and tested on iOS Safari and Android Chrome.

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