# Elkhart Hard Facts Calculator > Flow testing calculators and instructional videos for fire professionals. (iPhone/iPad app by Elkhart Brass.) - Source: https://appshunter.io/ios/app/elkhart-hard-facts-calculator/id1229532993 (this page in markdown: same URL + `.md`) - Developer: [Elkhart Brass](https://appshunter.io/developer/1229532992) - Category: Utilities, Reference - Price: Free - Rating: 4.50/5 from 12 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 4 MB - Languages: American English - Released: 2017-10-07 - Data updated: 2026-07-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/elkhart-hard-facts-calculator/id1229532993/reviews.md ## What is Elkhart Hard Facts Calculator? This puts everything needed for accurate flow testing at your fingertips with all the necessary calculators in just one easy to use application. Calculators are included for the following: • Smooth Bore Discharges & Flow/Pressure • Nozzle Reaction for Smooth Bore Nozzles • Nozzle Reaction for Fog Nozzles • Pump Discharge Pressure for standard layouts, with ability to input hose coefficient depending on make and inside diameter • Pump Discharge Pressure with elevation changes and appliances • Pump Discharge Pressure for High-Rise layouts • Fire Flow Formula Calculators for both the NFA and Iowa Formulas • Imperial or Metric units can be chosen Also included are direct links to several Brass Tacks & Hard Facts videos such as how-to setup and calibrate a flowmeter to measuring nozzle pressure. View the entire library at BrassTacksHardFacts.com. ## Key features - Smooth Bore Discharges & Flow/Pressure calculator - Nozzle Reaction calculators (Smooth Bore & Fog) - Pump Discharge Pressure calculators - Fire Flow Formula calculators (NFA & Iowa) - Imperial or Metric unit selection - Links to Brass Tacks & Hard Facts videos ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/elkhart-hard-facts-calculator/id1229532993/reviews.md ### 3/5 — Needed Correction *2024-07-28* The current app version shows “Hose Length (PSI)” on the PDP portion of the app for Flow and High Rise instead of “Nozzle Pressure (PSI). Can be confusing until you figure out the mistake. ### 1/5 — Not a fan *2020-09-16* No Canadian calculations. ### 4/5 — PDP *2020-08-09* Can you please add 3 inch hose and 80 as an option for nozzle pressure ### 4/5 — Nozzle reaction update *2017-11-24* Can you make it so we can input a specific GPM that we want to calculate along with the pre-done tip sizes under the Nozzle Reaction section please. ### 5/5 — Need 2” hose *2017-10-09* Your own films show the fantastic 1 1/16” tip being used on 2” hose. Can you get it placed on PDP page with the other attack diameters? ## Frequently asked questions about Elkhart Hard Facts Calculator ### What calculators are included in Elkhart Hard Facts Calculator? Elkhart Hard Facts Calculator includes calculators for smooth bore discharges, nozzle reaction for both smooth bore and fog nozzles, pump discharge pressure for various layouts, and fire flow formulas like NFA and Iowa. It also supports both Imperial and Metric units. ### Does Elkhart Hard Facts Calculator have ads? No, Elkhart Hard Facts Calculator is ad-free, providing an uninterrupted user experience for its calculations and video links. ### What is the rating and price of Elkhart Hard Facts Calculator? Elkhart Hard Facts Calculator has a strong rating of 4.5 stars from 12 ratings and is available for free. ### What devices support Elkhart Hard Facts Calculator? Elkhart Hard Facts Calculator is supported on iPhone and iPod devices. ### How often is Elkhart Hard Facts Calculator updated? The latest version of Elkhart Hard Facts Calculator is 2.1, and it was last updated on October 1, 2024, indicating regular maintenance and potential feature additions. ### Can I access instructional videos through Elkhart Hard Facts Calculator? Yes, Elkhart Hard Facts Calculator provides direct links to Brass Tacks & Hard Facts videos, offering guidance on setup, calibration, and measurements related to flow testing. ### What is the age rating for Elkhart Hard Facts Calculator? Elkhart Hard Facts Calculator has an age rating of 4+, making it suitable for a wide range of users. ### Who developed Elkhart Hard Facts Calculator? Elkhart Hard Facts Calculator was developed by Elkhart Brass, a company likely specializing in equipment for fire services. ## Version history (last 3 releases) ### 2.1 — 2024-10-01 Bug fixes and performance improvement ### 2.0 — 2023-12-20 bug fixing and performance improvement. ### 1.0 — 2017-10-07 This app has been updated by Apple to display the Apple Watch app icon. ## Apps similar to Elkhart Hard Facts Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [MyHolmatro](https://appshunter.io/ios/app/myholmatro/id6448843071) | — | Free | Utilities | | [Rail Crossing Locator](https://appshunter.io/ios/app/rail-crossing-locator/id643005214) | 2.6 (153) | Free | Utilities | | [Education Is KEY](https://appshunter.io/ios/app/education-is-key/id6744249929) | 5.0 (2) | Free | Utilities | | [CMC Field Guide](https://appshunter.io/ios/app/cmc-field-guide/id426955029) | 4.0 (24) | Free | Utilities | | [SHO-FLOW](https://appshunter.io/ios/app/sho-flow/id1447418345) | 4.2 (12) | Free | Utilities | | [US Fire Pump](https://appshunter.io/ios/app/us-fire-pump/id1507974220) | 5.0 (9) | Free | Utilities | ## Related topics [brass tacks](https://appshunter.io/ios/topics/brass-tacks) · [friction loss calculator](https://appshunter.io/ios/topics/friction-loss-calculator) · [friction loss](https://appshunter.io/ios/topics/friction-loss) · [water flow calculators](https://appshunter.io/ios/topics/water-flow-calculators) · [fire flow](https://appshunter.io/ios/topics/fire-flow) · [fireground friction loss quiz](https://appshunter.io/ios/topics/fireground-friction-loss-quiz) --- *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 2026-07-04.*