HeavyCalc Pro
Calculated Industries
About this app
- Age 10
- Updated Feb 3, 2026
- OS IOS / Android
Editor reviews
HeavyCalc Pro is a high-performance calculator and unit converter built for engineers, students, and power users who need results fast. It combines a precise math engine with smart conversion tools and reusable formulas to streamline everyday and professional work. Key features include advanced scientific and engineering functions with clear expression input and instant results, an all-in-one unit converter across common technical categories with dimensional checking, and templates, variables, and calculation history to save time and reduce errors. It is designed for productivity with a clean layout, quick editing, offline use, and customizable precision, angle units, and themes. Ideal for lab work, construction takeoffs, finance estimates, academic problem solving, and daily utilities. Keywords: scientific calculator, engineering calculator, unit converter, formula solver, productivity, offline calculator app.
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How to use:
1. Download and open HeavyCalc Pro, then set your preferred theme, angle unit, and precision in Settings.
2. Start calculating right away by entering expressions with the keypad; use parentheses and built-in functions, then tap equals to get instant results.
3. Convert units by selecting source and target units, or apply a conversion directly to any result to switch between systems.
4. Save time by storing variables and creating formula templates for repeated tasks; pin frequent calculations to Favorites for one-tap access.
5. Review your history to reuse or edit past work, and export or copy results to share reports or continue in other apps.