Evacuation Time Calculator
Evacuation Time
Estimate building evacuation time based on occupancy.
Formula
Time = ceil(Occupants / (Flow Rate x Exits)) + Floor Travel
Frequently Asked Questions
How fast can a building be evacuated?
Most commercial buildings target full evacuation in under 3 to 5 minutes.
How wide should exit doors be?
Fire codes typically require at least 32 to 36 inches of clear exit width.