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Home / Construction & Civil Engineering / HVAC Cooling Load & CFM Estimator
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HVAC Cooling Load & CFM Estimator

BTU/hr heat gain, AC tonnage and CFM airflow.

🔒 Runs locally · no upload0 uses
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HVAC Cooling Load & CFM Estimator: free online, no upload

HVAC Cooling Load & CFM Estimator is a free online tool for civil engineers, contractors, site supervisors and home builders. BTU/hr heat gain, AC tonnage and CFM airflow. It works instantly in any modern browser on Windows, Mac, Android and iPhone, with no installation, no sign-up and no limits. Your construction quantities and designs are processed on your own device using the open-source josdejong/mathjs library, so nothing is uploaded and your privacy is protected. People use it when they search for cooling load, ac tonnage.

How to use HVAC Cooling Load & CFM Estimator

  1. Open the tool: Open HVAC Cooling Load & CFM Estimator on this page. It loads in a few seconds and runs inside your browser tab.
  2. Add your input: Add your construction quantities and designs or type the values. Nothing is uploaded to any server.
  3. Adjust and preview: Change the options and check the live preview until the result is exactly what you need.
  4. Download or copy: Download the result or copy it. You can repeat it as many times as you like, free.

Key features

  • BTU/hr heat gain, AC tonnage and CFM airflow
  • 100% free and unlimited, with no watermark, no credits and no paid plan
  • Runs locally in your browser for privacy and speed
  • Works on mobile, tablet and desktop
  • Download, print or copy results instantly

Popular uses

  • Estimate materials and costs
  • Prepare BOQs and schedules
  • Check designs on site

Frequently asked questions

Is HVAC Cooling Load & CFM Estimator free?

Yes, 100% free with no limits. Online Free Tools is a free welfare project supported only by ads. Full power is unlocked by inviting friends, never by paying.

Are my files uploaded?

No. HVAC Cooling Load & CFM Estimator runs inside your browser, so your data stays on your device.

Does it work on mobile?

Yes. It works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.

Built with open-source technology: josdejong/mathjs.

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No subscriptions. No payments. Ever. Full power is unlocked by inviting friends, never by paying.

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