Last verified: January 2026

Kitchen Hood CFM Calculator 🍳

Calculate commercial kitchen exhaust hood airflow requirements based on hood dimensions, equipment duty rating, and mounting configuration per IMC and ASHRAE guidelines.

📐 Hood Configuration

🔥 Equipment Duty Rating

Light
Ovens, steamers
Medium
Pasta cookers, griddles (gas)
Heavy
Fryers, charbroilers (under 5ft)
Extra Heavy
Charbroilers (>5ft), woks

📊 Exhaust Requirements

🍳

Configure hood and click Calculate

📋 CFM per Linear Foot (IMC Table 507.13.1)

Duty Wall Island
Light150200
Medium200300
Heavy300400
Extra Heavy400550

📚 References & Standards