This fire application calculates both estimated needed fire flow required to extinguish a structure fire as well as calculate pump discharge pressures for various hand-lines and master streams in both standard and metric terms.

The application is designed by driver / operators to be used during emergency response or pre-planning to apply calculations to help control the fire ground incident when it occurs.

The National Fire Academy formula and the Iowa State formula can be used to generate the estimated necessary fire flow. These two methods give different total GPMs (LPMs), but the chances for effective knockdown and suppression efforts are increased when the needed fire flow is calculated and pre-determined.

The pump discharge pressure calculator estimates the pump panel discharge pressure needed for various hose configurations measured in both Psi and kPa using simple inputs such as nozzle type, hose diameter, hose length, appliance friction loss and elevation. The formula used is PDP = NP + FL + AFL + EL.

WARNING: This app takes no responsibility for the results it produces. Although the calculations have been thoroughly tested and referenced, use the results with caution - understanding that circumstances vary from situation to situation. These calculations should simply be used as another tool in the toolbox.

What’s New

Version 1.2.3

This app has been updated by Apple to use the latest Apple signing certificate.

Bug fixes.

Ratings and Reviews

4.6 out of 5
8 Ratings

8 Ratings

Ice733 ,

Nice tool

I find that this has been a useful little tool for pre-plans for flow calculations. I also started using it for in house teaching as a quick reference. I think it’s worth the purchase.

Blue Lawyer ,

Does what it's supposed to do - when you need it to ! ! !

I've tried a handful of fire-flow calculators and most of them are more flash than bang.

This app actually produces the info that you will need on the fire-ground!

It does it with a minimal amount of input - making it meaningful - when it counts!

This app is practical and simple to use - and it produces results.

GarminComeOn! ,

Pretty dang good!

I think this app is pretty awesome! Wish it had 1” hose calculations as well for our wildland applications, but I’ll live with that


Lucas Best
17.6 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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