Klima Global General Trading LLC

DW172 Tool-Thermal Convection based Calculator for Kitchen Ventilation Systems

Thermal Convection Calculator for Kitchen Ventilation Hood (DW172 Compliant)

This DW172 tool not only delivers accurate airflow calculations for kitchen ventilation hoods, but also allows you to download a detailed results document for your records or project submissions.

Air Flow Calculator

Project Details

Appliance

mm
mm
m2
m3/s
m3/hr
m3/s
m3/hr

Theoretical extract volume required

m3/s
m3/hr

Canopy Type

mm

Specific extract volume required

m3/s
m3/hr

*Disclaimer: This tool is provided for general informational and educational purposes only. It’s designed to support learning and provide reference values for those involved in commercial kitchen ventilation — whether you’re just getting started or looking for a quick refresher.

While we’ve developed this calculator based on industry standards like DW172 2018, it is not a substitute for professional engineering advice. The results should not be used as the sole basis for design decisions, installations, or any safety-critical actions.

Klima Global General Trading LLC does not guarantee the accuracy or applicability of the output in specific real-world scenarios. Use of this tool is at your own discretion and risk. For project-specific ventilation design, please consult a qualified HVAC or mechanical engineer.

Learn More About DW172 Thermal Convection

Understand the science behind the numbers.
Explore our in-depth article explaining DW/172:2018 thermal convection standards and how they apply to kitchen ventilation hood design — perfect for consultants, engineers, and anyone using this calculator.