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For clinicians, dietitians, and students using the calculator — questions about a calculation, a bug you’ve spotted, or a feature you’re missing all go to the same place.

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Sabzawan
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Calculation question Bug report Feature request General feedback
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Most messages get a reply within 1–2 business days.
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Before you write

Three quick things that help your message get answered on the first reply.

  1. 1

    If it’s about a calculation — note the inputs you used: weight, fluid volume, or the macro targets you entered.

  2. 2

    If something looks broken — include your browser and device, plus a screenshot if you have one.

  3. 3

    Either way — say what you expected to see instead. It’s the fastest way to a fix.

TPNCalculator.online is an educational reference tool intended to support, not replace, clinical judgment and institutional protocols. Always verify calculations against your facility’s policies.

© 2026 TPNCalculator.online Contact: Sabzawan@gmail.com