# HVAC & Sheet Metal Calculator — Construction Math & Trade Pro > Advanced calculator for HVAC and sheet metal professionals with specialized construction math functions. (iPhone/iPad app by Calculated Industries.) - Source: https://appshunter.io/ios/app/hvac-and-sheet-metal-calculator/id1554333784 (this page in markdown: same URL + `.md`) - Developer: [Calculated Industries](https://appshunter.io/developer/370406449) - Category: Utilities, Reference - Price: Free with in-app purchases (on sale, was $29.99) - Rating: 4.90/5 from 75 App Store ratings · 2 written reviews indexed - Age rating: 17+ - Requires: iOS 14.0 · 37 MB - Languages: American English - Released: 2021-07-31 - Data updated: 2026-09-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/hvac-and-sheet-metal-calculator/id1554333784/reviews.md ## What is HVAC & Sheet Metal Calculator? FREE Try Before You Buy trial: Apple does not charge your App Store account during the free trial. The ultimate calculator for HVAC professionals and sheet metal specialists. Transform your workflow with precision calculations for ducting offsets and angle measurements. This advanced construction-math calculator simplifies dimensional math, geometry, trigonometry, and includes custom HVAC functions in one versatile tool. ----- SHEET METAL FUNCTIONS ----- • X, Y, R (radius) calculations • Theta and Segment Radius functions • Conversion between Polar and Rectangular Coordinates • Offset functions for "S"-shaped bends in ductwork • Wrapper length, centerline radius, and angle solutions • Air flow calculations and analysis ----- TRIGONOMETRIC FUNCTIONS ----- • Sine, Cosine, Tangent calculations • Arcsine, Arcosine, and Arctangent functions • ArcK Constant for fast Arc Length solutions • Laws of Cosines for non-90° triangles • Right-angle solutions for ductwork dimensions • Complete angle measurement system ----- HVAC SPECIFIC CALCULATIONS ----- • Fan Law Functions for Test and Balance (TAB) • CFM, RPM, SP, and BHP calculations • Velocity and Velocity Pressure measurements • FPM, VP, MPS, and KPa conversions • Air flow and pressure analysis ----- CONSTRUCTION MATH FUNCTIONS ----- • Building dimensional format conversions (feet, inch, fractions, metric) • Area and volume calculations for any shape • Square-ups, slopes, rafters, and drains solutions • Regular and irregular hip/valley rafter length calculations • Plumb, level, and cheek cut angle determinations • Complete stair layout functionality • Circle, column, and cone surface area/volume solutions • D:M to decimal degree conversions ----- MATHEMATICAL CAPABILITIES ----- • Parenthesis operators for complex formulas • Order of operations with mathematical hierarchy • Square, cube, square root, and cube root calculations • Scientific notation and decimal precision • Fraction calculations from 1/2" to 1/64" • Standard calculator functionality with backspace editing • Built-in context-sensitive Help feature ----- PRACTICAL APPLICATIONS ----- • Dimensional math problems for sheet metal layout • Imperial and metric unit conversions • Arc, circle, column, and cone measurements • Offset calculations for ductwork • Air flow and velocity conversions • Right angle and rafter solutions • Stair layout calculations (risers/treads) TRUSTED TECHNOLOGY Built on 30+ years of industry experience, this app delivers professional-grade reliability that technicians depend on. Using the same Construction Master dimensional calculator engine that has been the industry standard for over 30 years, it helps you tackle complex calculations with confidence. PROFESSIONAL ADVANTAGE Developed alongside leading industrial training organizations, this calculator brings proven tools to your device. With HVAC and sheet metal terminology consistent with trade standards, it serves both professionals and apprentices in training. Transform your workflow with the calculator that helps top professionals increase accuracy, eliminate errors, and boost productivity with every calculation. SUBSCRIPTION INFORMATION Start with a free trial period. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of a free trial, payment will be charged to your Apple account. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS Sheet Metal/HVAC Pro™ is a trademark and Calculated Industries® is a registered trademark of Calculated Industries, Inc. Copyright 2025 https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Sheet metal calculations (radius, offset, wrapper length) - Trigonometric functions (sine, cosine, tangent, arc) - HVAC specific calculations (fan law, CFM, velocity) - Construction math (dimensional conversions, slopes, rafters) - Scientific and fraction calculations - Built-in context-sensitive help ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 1 Year Full Access | $24.99 | per year | | 1 Month Full Access | $3.99 | per month | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/hvac-and-sheet-metal-calculator/id1554333784/reviews.md ### 1/5 — Rip off *2025-11-17* Should not be a monthly subscription ### 5/5 — Great app *2025-05-10* New update makes added in measurement very simple ## Frequently asked questions about HVAC & Sheet Metal Calculator ### Does HVAC & Sheet Metal Calculator have ads? No, HVAC & Sheet Metal Calculator does not contain advertisements. The app is free to download and offers a free trial for its premium features. ### What are the subscription options for HVAC & Sheet Metal Calculator? HVAC & Sheet Metal Calculator offers two subscription plans: 1 Month Full Access for $3.99 and 1 Year Full Access for $24.99. Both plans include a 7-day free trial. ### How accurate are the calculations in HVAC & Sheet Metal Calculator? The app is built on the trusted Construction Master dimensional calculator engine, which has been an industry standard for over 30 years, ensuring professional-grade reliability and precision. ### What devices does HVAC & Sheet Metal Calculator support? HVAC & Sheet Metal Calculator is available for iPhone, iPad, and iPod. It is designed for iOS devices. ### How often is HVAC & Sheet Metal Calculator updated? The app was last updated on May 9, 2025, with version 10.6.7. This indicates a commitment to regular updates and maintenance. ### What age rating does HVAC & Sheet Metal Calculator have? HVAC & Sheet Metal Calculator has an age rating of 17+. This is likely due to the technical nature of the calculations and its target professional audience. ### Can I cancel my HVAC & Sheet Metal Calculator subscription? Yes, users can cancel their subscription at any time through their App Store account settings. The free trial period also allows users to test the full features before being charged. ### What is the user sentiment for HVAC & Sheet Metal Calculator? The app has received overwhelmingly positive feedback, indicated by its perfect 5.0-star rating from 40 reviews. Users appreciate its precision and comprehensive features for trade professionals. ## Version history (last 3 releases) ### 10.6.7 — 2025-05-09 Revised UI, new top navigation bar, and full-text searchable help. ### 10.6.6 — 2025-05-08 Revised UI, new top navigation bar, and full-text searchable help. ### 1.0.0 — 2021-07-31 No release notes. ## Apps similar to HVAC & Sheet Metal Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Construction Master Pro Calc](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446) | 4.8 (39,604) | Free | Utilities | | [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (10,020) | Free | Utilities | ## More apps by Calculated Industries - [Boater's Pocket Reference](https://appshunter.io/ios/app/boaters-pocket-reference/id323913317) - [Navy SEAL Fitness](https://appshunter.io/ios/app/navy-seal-fitness/id324155166) - [I.D. Wood](https://appshunter.io/ios/app/id-wood/id325838725) - [Army First Aid](https://appshunter.io/ios/app/army-first-aid/id326842780) - [Navigation Rules](https://appshunter.io/ios/app/navigation-rules/id327936562) - [Hand-to-Hand Combat](https://appshunter.io/ios/app/hand-to-hand-combat/id330023291) All apps by Calculated Industries: https://appshunter.io/developer/370406449 ## Related topics [hvac calculator](https://appshunter.io/ios/topics/hvac-calculator) · [sheet metal calculator](https://appshunter.io/ios/topics/sheet-metal-calculator) · [sheet metal calculator pro](https://appshunter.io/ios/topics/sheet-metal-calculator-pro) · [allday hvac calc](https://appshunter.io/ios/topics/allday-hvac-calc) · [in hvac calculator](https://appshunter.io/ios/topics/in-hvac-calculator) · [sheet metal](https://appshunter.io/ios/topics/sheet-metal) · [omni cfm calculator](https://appshunter.io/ios/topics/omni-cfm-calculator) · [sheet metal pros](https://appshunter.io/ios/topics/sheet-metal-pros) · [calculated industries](https://appshunter.io/ios/topics/calculated-industries) --- *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 2026-09-03.*