HVAC & Sheet Metal Calculator

Revised UI, new top navigation bar, and full-text searchable help.

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/