Ventilation Rate Calculator

Ventilation Rate Calculator calculator can be used to determine the required ventilation rate (air changes per hour) for a room based on its volume and occupancy.

Input Parameters

Calculation Results

Calculation Formula

Required Ventilation = Ventilation Rate × Room Volume

Where:
- Required Ventilation (m³/h): Total air volume moved per hour
- Ventilation Rate (air changes per hour): Number of times the room volume is exchanged per hour
- Room Volume (m³): The total volume of the room

Results

Room Volume: 0 m³
Occupancy: 0 people
Required Ventilation Rate: 0 air changes/hour
Total Required Ventilation (m³/h): 0 m³/h

Ventilation Rate Calculator Calculator Usage Guide

Learn how to use the Ventilation Rate Calculator and understand ventilation principles

How to Use This Calculator

  1. Enter the volume of your room in cubic meters. This is calculated as: Length × Width × Height.
  2. Input the number of people who will be occupying the room.
  3. Specify the required ventilation rate (air changes per hour). This depends on the room's use:
    • Offices: 15-20 air changes/hour
    • Classrooms: 15-20 air changes/hour
    • Restrooms: 50-60 air changes/hour
    • Living rooms: 6-8 air changes/hour
    • Kitchens: 12-15 air changes/hour
  4. Click the "Calculate" button to determine the total required ventilation in cubic meters per hour.
  5. The result can help you select appropriate ventilation systems or adjust existing ones.

Understanding Ventilation Rate

Ventilation rate is typically measured in air changes per hour (ACH), which represents how many times the total volume of air in a space is replaced by fresh air within one hour.

Safety Considerations

Proper ventilation is crucial for maintaining indoor air quality and preventing the buildup of harmful pollutants, carbon dioxide, and moisture. The recommended ventilation rates may vary based on local building codes and specific health requirements.