---
title: "Ventilation Calculators | XTRAW Tools"
description: "Ventilation calculators for ACH, CFM, duct size, ventilation rate, airflow, room volume, air changes, and indoor air quality planning."
url: "https://xtraw.com/tools/calculators/construction-home-calculators/construction-calculators/hvac-calculators/ventilation-calculators/by,ordering"
date: "2026-07-06T05:55:59+00:00"
language: "en-GB"
---

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 # Ventilation Calculators

#### Latest Tools

 [ ![Ventilation Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-ventilation-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/construction-home-calculators/construction-calculators/hvac-calculators/ventilation-calculators/ventilation-calculator "Ventilation Calculator")  new

## [Ventilation Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2458&virtuemart_category_id=266&Itemid=173)

 Calculate minimum ventilation CFM for a space based on area ...

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 [ ![Duct Size Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-duct-size-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/construction-home-calculators/construction-calculators/hvac-calculators/ventilation-calculators/duct-size-calculator "Duct Size Calculator")  new

## [Duct Size Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2457&virtuemart_category_id=266&Itemid=173)

 Calculate required round or rectangular duct size for a ...

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 [ ![CFM Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-cfm-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/construction-home-calculators/construction-calculators/hvac-calculators/ventilation-calculators/cfm-calculator "CFM Calculator")  new

## [CFM Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2456&virtuemart_category_id=266&Itemid=173)

 Calculate required airflow (CFM) for a room based on ACH or ...

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#### Products

 [ ![Air Changes Per Hour Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-air-changes-per-hour-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/construction-home-calculators/construction-calculators/hvac-calculators/ventilation-calculators/air-changes-per-hour-calculator "Air Changes Per Hour Calculator")  new

## [Air Changes Per Hour Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2455&virtuemart_category_id=266&Itemid=173)

 Calculate air changes per hour (ACH) for a room given CFM ...

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