This calculator will compute the quantity of Inergen, FM-200, or FE-13 fire suppression extinguishing agent required to protect an enclosure. This calculator is an estimating guide only--do not rely on it as a substitute for a trained professional calculation.

You must have a Javascript enabled browser such as Netscape 3.0 or Internet Explorer 3.0 or greater to use this calculator. If the calculator won't work for you, upgrade your browser to either of these.

When entering data, enter the enclosure size in cubic feet, the elevation in feet above sea level, and the highest expected temperature in degrees F. of the protected area.

You may leave the elevation blank; the system will default it to 500 ft. If the temperature is left blank, the system will default to 72 degrees F.

After entering data, click the 'calculate' button and we will calculate the approximate amount of extinguishing agent required to meet the minimum requirements for fire extinguishment.