Standard CFC Calculator
Use the calculator below to find the Cubic Feet for your specific project.
Results
Required CFM:
Room Volume: cubic feet
Important Notes:
- Exhaust relief must be equal to the air introduction for proper air balance.
- This sizing method only allows for area cooling and considers no other factors.
- For most applications, 20-40 air changes per hour is recommended:
- Comfort Cooling: 20-30 changes/hour
- Industrial Cooling: 30-40 changes/hour
- Heat Removal: 40+ changes/hour
