Champ Calc Pro

4.8
81 reviews
1K+
Downloads
Content rating
USK: All ages
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About this app

Champ Calc Pro© is a powerful scientific calculator that supports very large numbers and extreme precision of more than 130 digits.


The calculator provides a wide variety of domains such as mathematics, trigonometry, logarithms, statistics, percentage calculations, base-n operations, scientific constants, unit conversions, and more.


The calculator detects and shows repeating decimal numbers (periodic numbers) on the display and interfaces, allowing editing them inside the expression.


The calculator fully supports complex numbers in both rectangular and polar forms and in Degrees-Minutes-Seconds (DMS) format. These formats can be used freely in expressions, within functions, and across various interfaces. Additionally, you have the option to select any of these formats for the displayed result.


Additionally, the calculator includes an advanced programmer's mode that supports binary, octal, and hexadecimal number systems. It offers logical operations, bitwise shifts, rotations, and more. You can adjust the number of bits for making the calculations and also select between Signed or Unsigned number representations.


Editing calculations is made easy with a multi-line expression editor and customizable syntax highlighting, ensuring a user-friendly experience. The calculator's design focuses on ease of use, professional aesthetics, high-quality themes, and customizable syntax colors.




Key Features:

• Multi-line expression editor with syntax highlighting

• Supports large numbers and extreme precision

• Handles up to 130 decimal digits of significand

• Full support for Complex Numbers and Polar view

• Comprehensive functions: Math, Trig, Logarithmic, Statistics, and more

• Trigonometric and hyperbolic function support

• Binary, octal, and hexadecimal numeral systems

• Logical operations, bitwise shifts, and rotations

• Statistical calculations using stack entries

• Percentage calculations

• Use of parameters within expressions (PRO feature)

• Extended information about calculation results

• Interactive interface for storing and utilizing values

• Statistical calculator with stack entries

• Over 300 scientific constants (CODATA)

• Over 760 conversion units

• Sharing and clipboard operations

• Quick navigation through expression history

• Interactive interfaces for memory and expressions

• Angular modes: degrees, radians, and grads

• Conversion functions for angular modes

• DMS support (degrees, minutes, and seconds)

• Configurable number format and precision

• Fixed, scientific, and engineering modes

• Detection, display, and editing of repeating decimals

• High-quality themes

• Customizable syntax highlighting

• Adjustable text size for display

• Integrated user manual



PRO Version Features:

★ Managing and saving expressions.

★ Advanced parameter interface.

★ Rich color editor for syntax highlighting.

★ Trig functions with complex args.

★ Support the project ☺

Updated on
Apr 7, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.8
71 reviews
Alan Squire
March 24, 2024
Has everything I need. Attractive and intelligent layout. Easily configurable.
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Paul O
April 13, 2022
One of only a few scientific calculators I could find that do not require extra permissions (ChampCalc, RealCalc, CalcTastic), and the only one being actively updated. I bought the Pro version to support it. A large font theme would be helpful in difficult light; the Shift labels in particular are a bit small. RealCalc is easier to use in this circumstance.
3 people found this review helpful
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Haggard Pillock
November 7, 2022
Calculators are utilitarian stuff. You pull it out to quickly calculate your bills and mortgage repayments etc. So clarity and ease of use overrides all other features. So having semi transparent grey font for numbers against a greyish green background is simply mind-numblingly silly. Just use black font and job done. No other complaints.
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Bens Apps
January 19, 2023
Hello. You can customize the colors of the numbers, operators, functions, background, and more. Please check the settings.

What's new

Version 7.04
- The "More Information" dialog has been enhanced.
- Improved compatibility with older Android OS versions.
- Significand Support up to 130 digits for more precise calculations.
- New "S⇌D" Button: Switch between decimal, DMS, and Polar form.
- DMS Values: Use and store DMS values in Memory and Parameters.
- Share as Image: Share results from various dialog boxes as images.
- Enhanced User Manual: Clearer guidance for all features.
- 'M' Indicator: Added for memory use visibility.