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HVAC calculation tools

Professional sizing tools for HVAC systems

A Complete Suite of Calculation Tools for HVAC Experts

Energy efficiency and indoor air quality are major challenges on an international scale, France Air provides you with a complete suite of professional calculators to optimize your installations. Accessible for free online and on mobile devices, these precision tools support you in all your projects.

Optimize your installations with our 4 specialized calculators

Pressure loss calculator

Precise analysis of linear pressure losses
Consideration of network singularities
Instant calculation based on flow rate or velocity
Intuitive multilingual interface

Duct diameter optimizer

Determination of optimal diameter up to 1250mm
Calculation based on international standards
Consideration of local constraints
Compatible with EN and ISO standards

Professional acoustic converter

Calculation of sound pressure level (Lp)
Integration of directivity factors
Analysis of sound propagation
Adaptation to local requirements

Sound level adder

Precise addition of acoustic powers
Simplified interface
Data export
Compliant with international acoustic standards

Why choose our calculators?

Join the thousands of professionals who trust France Air tools for their HVAC projects worldwide.

International Expertise: 60 years of experience in air treatment

Technical Precision: Calculators validated by our international experts

Accessibility: Interface available in multiple languages

Technical Support: Assistance & ventilation experts at your service.

Frequently Asked Questions

The Pa Calculator allows you to instantly calculate linear pressure drops in circular and rectangular air networks. It takes into account airflow rate and air velocity, which is useful for sizing your ventilation systems.

Start using the pressure loss calculator

The m/s Calculator helps you quickly find the optimal duct diameter based on the desired airflow rate and air velocity in the network. It provides results for diameters up to 1250 mm.

Start using the duct calculator

This calculator determines the sound pressure level (Lp) at a specific point based on the sound power level (Lw), distance, and directivity. It’s useful for converting between sound power and sound pressure, two important parameters in ventilation acoustics.

Start converting acoustic

The dB(A) Calculator allows you to add two sound levels in dB(A). Since the noise measurement scale is logarithmic, this calculator uses a specific formula to give an accurate result of the sum of sound levels.

Start calculating

The calculators are freely accessible from our online platform, on both computers and mobile devices, with no installation required.

The calculators generally use the following units:

Flow rate: m³/h
Velocity: m/s
Area: m²
Diameter: mm
Sound levels: dB(A)

Our HVAC experts are ready to assist you

Map List

Vietnam

+ 33 (0)4 42 18 79 80 +33(0)4 35 82 37 37 (fax) france.air.export@france-air.com

Actiparc 1, Bat 6
131 traverse de la Penne aux camoins
13821 La Penne-sur-Huveaune
France Modal - Website https://www.france-air-export.com/

Professional sizing tools for HVAC systems

A Complete Suite of Calculation Tools for HVAC Experts

Optimize your installations with our 4 specialized calculators

Why choose our calculators?

Frequently Asked Questions

What is the Pa Calculator used for?

How does the m/s Calculator work?

What is the purpose of the Lw / Lp Calculator?

How do you use the dB(A) Calculator?

How to access the calculators ?

What units are used in these calculators?