ConstructCalc
Tape Measure & Fraction Math
$1.99 · Designed for iPad. Not verified for macOS.
Ditch the decimal conversions. Calculate dimensions, area, and volume directly in feet, inches, and fractions with a keypad built for the job site.
ConstructCalc: Tape Measure & Construction Math
Stop fumbling with decimals or doing mental gymnastics on the job site. ConstructCalc is a purpose-built dimensional calculator designed for contractors, carpenters, landscape architects, and DIYers who need fast, accurate math in feet, inches, and fractions.
Whether you are calculating cubic yards for a concrete pour, finding the dead center of a wall, or dividing a span for deck balusters, ConstructCalc handles the heavy lifting so you can focus on the build.
True Dimensional Math
Add, subtract, multiply, and divide directly using architectural notation. No more converting fractions to decimals and back again.
Custom Architectural Keypad
Ditch the standard number pad. Our custom-built interface features dedicated one-tap fraction keys (1/16", 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 7/8") alongside feet (') and inch (") keys, allowing you to punch in measurements exactly as they appear on your blueprints.
Smart Formatting & Auto-Correction
ConstructCalc intuitively understands how builders write dimensions. Type a foot value followed by inches, and the app automatically injects the proper architectural dash (e.g., 12'-6 1/2").
Pro Layout Tools
Center Button: Instantly find the exact midpoint of any dimension with a single tap.
Divide Into: Need perfectly equal spacing for fence posts, lights, or joists? The "Div Into" tool lets you divide any span into a specific number of equal parts in seconds.
Area & Volume Estimator
Area Mode: Quickly multiply length by width, with optional item multipliers (e.g., calculate total square footage and scale it by pieces).
Volume Mode: Calculate total cubic yards by entering length, width, and depth (in inches). You can even factor in a custom waste percentage to ensure you always order the right amount of material.
Live History Tape
Never lose your place in a long calculation. Your running mathematical history is displayed on a scrollable receipt tape right on the screen. Easily review past inputs and clear the board when you are ready for the next project.
Built for the Job Site
Haptic Feedback: Feel every keystroke with responsive, tactile vibrations designed for confident data entry, even with gloves on.
Universal Support: Runs beautifully on iPhone for on-the-go pocket access, and features a fully optimized, custom bottom-sheet layout for iPad Pro—perfect for the drafting table or client meetings.
Custom Themes: Personalize your workspace with professional color profiles like Architect Blue and Task Green.
NO SUBSCRIPTION REQUIRED Pay once and own it forever. No monthly fees, no feature limitations, no ads. Professional tools at a one-time price.
Work smarter, measure faster, and cut with confidence. Download ConstructCalc today.
Ratings & Reviews
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The developer, John Lein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- John Lein
- Size
- 10.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.5 or later.
- iPhone
Requires iOS 26.5 or later. - iPad
Requires iPadOS 26.5 or later. - Mac
Requires macOS 26.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.5 or later.
- iPhone
- Languages
- English
- Age Classification
4+
- 4+
- Copyright
- © 2000 - 2026 Lein Design Inc.
