Fire Flow Calculator

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Calculates the required fire flow (water flow) for fire suppression based on the building type and area.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Building Type and Building Area (square feet) in the units shown.

Step 2

Read Required Fire Flow in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Building Type: Light Hazard; Building Area (square feet): 1,000 sq ft

Required Fire Flow: 100 GPM

Building Type: Ordinary Hazard (Group 1); Building Area (square feet): 2,500 sq ft

Required Fire Flow: 375 GPM

Building Type: Ordinary Hazard (Group 2); Building Area (square feet): 5,000 sq ft

Required Fire Flow: 1,000 GPM

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