# WALT Calculator > Weather, location, and target computation toolbox for pilots, shooters, and enthusiasts. (iPhone/iPad app by Jeff McClay.) - Source: https://appshunter.io/ios/app/walt-calculator/id815488678 (this page in markdown: same URL + `.md`) - Developer: [Jeff McClay](https://appshunter.io/developer/815488681) - Category: Utilities, Weather - Price: Free - Rating: 4.00/5 from 4 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 14 MB - Languages: American English - Released: 2014-02-12 - Data updated: 2026-06-07 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/walt-calculator/id815488678/reviews.md ## What is WALT Calculator? WALT Calculator is a toolbox containing many useful weather, location, and target related computations. WALT: Weather, Altitude, Lat/Long, Target Features: 1. Density Altitude Calculator Great for pilots, shooters, or weather enthusiasts, the WALT's density altitude calculator can provide a useful meteorological metric for comparing performance in differing weather conditions. For devices with a pressure sensor (iPhone 6 and later), DA can be automatically calculated from the device's own pressure sensor. 2. Field Elevation Calculator Know the ambient/station pressure and the alimeter setting/barometric pressure? Calculate your elevation above mean sea level with this calculator. Know your elevation but not your ambient pressure? With the field elevation calculator, you can calculate any of these three metrics! 3. Geographic Coordinates Converter Convert a geographic location from degrees, minutes, and seconds into decimal degrees, decimal minutes, or UTM. 4. Geographic Distance Calculator Find the distance between two points on the globe, given a set of geographic coordinates. 5. Target Calculator Designed primarily for shooting sports, the target calculator can compute distance to target, given target size and angle. Or target size, given target distance and size. This is a great complement to a mildot or MOA reticle optic. ## Key features - Density Altitude Calculator - Field Elevation Calculator - Geographic Coordinates Converter - Geographic Distance Calculator - Target Calculator ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/walt-calculator/id815488678/reviews.md ### 5/5 — Very useful *2019-04-11, version 1.6* Latest fix works perfect. Thank you. Great app. Use it often for shooting sports. ### 3/5 — Needs work *2019-03-17, version 1.5.2* I can’t select the top option making this app useless. Good idea but needs user experience improvement ### 4/5 — Lat Long to Decimal converter *2018-07-15* The selection to “decimals of degrees” line is almost completely covered by the tool bar at the top of the page, making its selection virtually impossible. Apart from that, pretty good. ### 2/5 — Ok but issue with degC dew point *2017-05-13* Works ok mostly, but there is an annoying bug that won't allow selection of degC dew point no matter what I try and select. Deg F and % relative humidity are fine but like most of the developed world I work in deg C and would appreciate a fix to make this work ### 5/5 — Works *2015-11-13, version 1.2* Simple and handy ### 5/5 — Works! *2014-06-27, version 1.0.1* Great app, works like it should. Great tool for the precision long range shooter. ## Frequently asked questions about WALT Calculator ### What is WALT Calculator used for? WALT Calculator is a toolbox for weather, location, and target computations. It helps users calculate density altitude, field elevation, convert geographic coordinates, find distances between locations, and compute target-related metrics for shooting sports. ### Does WALT Calculator have ads? No, WALT Calculator does not contain advertisements. It is a completely ad-free application, providing an uninterrupted user experience. ### What devices support WALT Calculator? WALT Calculator is available for iPhone, iPad, and iPod touch devices. It requires iOS 4.3 or later to function. ### How often is WALT Calculator updated? The latest version of WALT Calculator, 1.6, was released on April 11, 2019. While updates have not been frequent recently, the app remains functional for its intended purpose. ### What is the age rating for WALT Calculator? WALT Calculator has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content. ### Can WALT Calculator automatically calculate density altitude? Yes, for devices with a pressure sensor (iPhone 6 and later), WALT Calculator can automatically calculate density altitude using the device's built-in sensor. ### What kind of geographic conversions does WALT Calculator offer? WALT Calculator can convert geographic locations from degrees, minutes, and seconds into decimal degrees, decimal minutes, or UTM coordinates. ### Is WALT Calculator free to download? Yes, WALT Calculator is available for free download on supported Apple devices. There are no in-app purchases or subscription fees associated with its use. ## Version history (last 5 releases) ### 1.6 — 2019-04-11 Updated to Swift 5! This version should fix the issue causing some input fields to be hidden/obstructed. ### 1.5.2 — 2016-06-11 (Version 1.5.1 Bugfix: Fixed a critical bug where latitude & longitudes were being calculated and displayed incorrectly by up to 1 full degree.) (Version 1.5.2 Bugfix: Added meters back as an available unit in the Density Altitude & Field Elevation calculators) Version 1.5 of WALT has been re-written from scratch, in Swift! WALT is now faster, more accurate, and easier to use! WALT is now also a universal app. Download it on your iPad today! Other updates include: • Updated (cleaner) interface. • Coordinate Converter now accepts UTM coordinates as input. • Distance calculator is now more accurate. • Added more angle units. ### 1.5.1 — 2016-06-08 (Version 1.5.1 Bugfix: Fixed a critical bug where latitude & longitudes were being calculated and displayed incorrectly by up to 1 full degree.) Version 1.5 of WALT has been re-written from scratch, in Swift! WALT is now faster, more accurate, and easier to use! WALT is now also a universal app. Download it on your iPad today! Other updates include: • Updated (cleaner) interface. • Coordinate Converter now accepts UTM coordinates as input. • Distance calculator is now more accurate. • Added more angle units. ### 1.5 — 2016-06-06 Version 1.5 of WALT has been re-written from scratch, in Swift! WALT is now faster, more accurate, and easier to use! WALT is now also a universal app. Download it on your iPad today! Other updates include: • Updated (cleaner) interface. • Coordinate Converter now accepts UTM coordinates as input. • Distance calculator is now more accurate. • Added more angle units. ### 1.2 — 2015-04-08 * Fixed a bug which prevent iOS 8 Devices from getting GPS location correctly. * Improved quality and accuracy of Density Altitude computation ## Apps similar to WALT Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Heatcheck NA](https://appshunter.io/ios/app/heatcheck-na/id1522381620) | — | Free | Utilities | | [Lantern Power Monitor](https://appshunter.io/ios/app/lantern-power-monitor/id1620735464) | 5.0 (4) | Free | Utilities | | [ORCA Assist](https://appshunter.io/ios/app/orca-assist/id1568608376) | 5.0 (1) | Free | Utilities | | [AutoBotEV](https://appshunter.io/ios/app/autobotev/id6463710756) | 1.0 (3) | Free | Utilities | | [GPS Package Delivery](https://appshunter.io/ios/app/gps-package-delivery/id1577055299) | — | Free | Utilities | | [NB-42 Barometer](https://appshunter.io/ios/app/nb-42-barometer/id6503903082) | — | Free | Utilities | ## More apps by Jeff McClay - [TargetView](https://appshunter.io/ios/app/targetview/id899764983) - [CarNerd](https://appshunter.io/ios/app/carnerd/id1105766058) All apps by Jeff McClay: https://appshunter.io/developer/815488681 --- *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 2026-06-07.*