Restaurant Dining Ventilation Calculator
Outdoor air CFM for a restaurant dining room.
Enter your values
ⓘ Live results
Results
- Outdoor air required
- 960 CFM
- Per person rate
- 12 CFM
- Total supply at 1.2 CFM/sq ft
- 2,400 CFM
Quick answer
Restaurant dining rooms typically need about 7.5 CFM per person plus 0.18 CFM per square foot of outdoor air.
CFM = 7.5 x people + 0.18 x area
How to use the Restaurant Dining Ventilation Calculator
- 1Count peak seated occupancy for the dining room.
- 2Enter the dining floor area, excluding the kitchen.
- 3Combine with makeup air sized separately for the kitchen hood system.
Worked example
Using the values the calculator loads with:
Inputs
- Seated occupants80
- Dining area2000 sq ft
Results
- Outdoor air required960 CFM
- Per person rate12 CFM
- Total supply at 1.2 CFM/sq ft2,400 CFM
Frequently asked questions
Does this include the kitchen?
No — kitchens are sized separately by hood exhaust and matched makeup air.
Bar area?
Bars often need a slightly higher per-person rate due to denser seating and smoke/odour control.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.