# Fire Flow / Pump Pressure Calculator > Fire flow and pump pressure calculator for emergency responders. (iPhone/iPad app by Lucas Best.) - Source: https://appshunter.io/ios/app/fire-flow-pump-pressure-calculator/id563921063 (this page in markdown: same URL + `.md`) - Developer: [Lucas Best](https://appshunter.io/developer/455144418) - Category: Utilities - Price: $0.99 - Rating: 4.10/5 from 17 App Store ratings · 30 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 17 MB - Languages: American English - Released: 2012-11-02 - Data updated: 2026-08-30 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/fire-flow-pump-pressure-calculator/id563921063/reviews.md ## What is Fire Flow / Pump Pressure Calculator? 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. ## Key features - Fire flow estimation - Pump discharge pressure calculation - Standard and metric units - Multiple fire flow formulas - Hose configuration input ## Recent user reviews (10 of 30) All indexed reviews: https://appshunter.io/ios/app/fire-flow-pump-pressure-calculator/id563921063/reviews.md ### 3/5 — No 2” attack line calculator *2021-03-09, version 1.2.3* This is an excellent tool if you are using the old fashioned 1 3/4” and 2 1/2” attack line setup on your apparatus. However, there is no calculation method for those that have the more modern approach of a 2” attack line. Hoping the devs can fix this issue with an update as more and more departments are turning to 2” attack lines as they can achieve what we use 2 1/2” for with much less physical effort. ### 5/5 — Nice tool *2020-08-20, version 1.2.3* 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. ### 5/5 — Pretty dang good! *2019-05-21, version 1.2.3* 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 ### 1/5 — 669canada *2018-10-30, version 1.2.3* Where’s the metric?? Thank goodness I didn’t pay for this... wait.. I did 😡 ### 5/5 — Great App (developers please read) *2016-01-14, version 1.2.3* Very handy app but I'd like to see you add 2" hose to the calculator. Starting this year our rig will be carrying 2" high rise packs. Thanks!! ### 5/5 — Does what it's supposed to do - when you need it to ! ! ! *2015-08-25, version 1.2.3* 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. ### 1/5 — Crap *2014-11-23, version 1.2.2* Won't open, useless. Don't purchase!!!!!! ### 1/5 — Fix it or money back *2014-11-05, version 1.2.2* Will not open. ### 1/5 — Won't open *2014-10-31, version 1.2.2* Totally useless app. It won't open ### 1/5 — Not that good. *2014-10-19, version 1.2.2* Don't know how this app is suppose to work. Won't open. ## Frequently asked questions about Fire Flow / Pump Pressure Calculator ### What is the price of Fire Flow / Pump Pressure Calculator? Fire Flow / Pump Pressure Calculator is a paid app priced at $0.99. This one-time purchase grants access to all its features. ### How often is Fire Flow / Pump Pressure Calculator updated? The app was last updated on December 5, 2014, with version 1.2.3. Users should note the age of the last update when considering its current relevance. ### What devices support Fire Flow / Pump Pressure Calculator? Fire Flow / Pump Pressure Calculator is available for iPhone, iPad, and iPod devices. It is designed for the iOS ecosystem. ### What is the age rating for Fire Flow / Pump Pressure Calculator? The app has an age rating of 4+, making it suitable for a wide range of users. This rating indicates minimal content concerns. ### What do users like about Fire Flow / Pump Pressure Calculator? While specific user sentiment is not detailed, the app's functionality for calculating fire flow and pump pressures is its primary appeal to its target audience. ### Does Fire Flow / Pump Pressure Calculator offer offline functionality? The description does not explicitly mention offline functionality, but calculation tools like this are typically designed to work without an internet connection during emergency situations. ### What are the two methods used for fire flow estimation in Fire Flow / Pump Pressure Calculator? Fire Flow / Pump Pressure Calculator utilizes the National Fire Academy formula and the Iowa State formula to generate estimated necessary fire flow, providing different total GPMs (LPMs). ### What factors are considered in the pump discharge pressure calculation? The pump discharge pressure calculator considers nozzle type, hose diameter, hose length, appliance friction loss, and elevation to estimate the required pump panel discharge pressure. ## Version history (last 5 releases) ### 1.2.3 — 2014-12-05 This update from Apple will improve the functionality of this app. No new features are included. Bug fixes. ### 1.2.2 — 2013-09-26 Optimizations for iOS 7. ### 1.2.1 — 2013-09-08 Fixed iPad UI. Fixed compatibility issues with iOS 5. Bug fixes. ### 1.2.0 — 2013-07-22 New Icon. New User Interface. ### 1.1.1 — 2012-12-17 Fixes icon image showing on older devices. ## Apps similar to Fire Flow / Pump Pressure Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Air-Pak X3 Pro](https://appshunter.io/ios/app/air-pak-x3-pro/id1370113131) | 5.0 (4) | Free | Utilities | | [Pump Pressure](https://appshunter.io/ios/app/pump-pressure/id1558344403) | 3.0 (2) | $1.99 | Utilities | | [OmniFire](https://appshunter.io/ios/app/omnifire/id716040611) | 5.0 (1) | $9.99 | Utilities | | [US Fire Pump](https://appshunter.io/ios/app/us-fire-pump/id1507974220) | 5.0 (9) | Free | Utilities | | [Hose Record Vault](https://appshunter.io/ios/app/hose-record-vault/id1499142832) | — | Free | Utilities | | [Elkhart Hard Facts Calculator](https://appshunter.io/ios/app/elkhart-hard-facts-calculator/id1229532993) | 4.5 (12) | Free | Utilities | ## More apps by Lucas Best - [Health Tip of the Day](https://appshunter.io/ios/app/health-tip-of-the-day/id465943777) All apps by Lucas Best: https://appshunter.io/developer/455144418 ## Related topics [pump pressure](https://appshunter.io/ios/topics/pump-pressure) · [fire flow](https://appshunter.io/ios/topics/fire-flow) · [hydrant flow test calculator](https://appshunter.io/ios/topics/hydrant-flow-test-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*