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RealCalc - A Realistic Scientific Calculator for Android

RealCalc Scientific Calculator is Android's most popular scientific calculator. It has over 20 million downloads and more than 100,000 5* reviews.

RealCalc is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus history, memories, unit conversions and constants. You can choose from a number of display styles and formats. It also supports binary, octal and hexadecimal calculations and has an optional RPN mode. RealCalc is easy to use, but has full help included in the app.

If you like RealCalc, the pro version RealCalc Plus has lots of extra features including fractions, degrees/minutes/seconds, customizable conversions and constants, landscape mode, a home-screen widget, a 12-digit display and greater internal precision. Purchasing RealCalc Plus will also help to support further development. Just search for RealCalc Plus or follow the upgrade link in the app.

Features include:

  • Traditional algebraic or RPN operation
  • 7-Segment, dot-matrix or standard font display
  • Powers, roots, logarithmic and exponential functions.
  • Percentage calculations.
  • Trigonometric functions in degrees, radians or grads.
  • Hyperbolic functions.
  • Factorials, permutations and combinations.
  • Fraction calculations and conversion to/from decimal (RealCalc Plus only).
  • Degrees, minutes and seconds support (RealCalc Plus only).
  • 10 memories with memory contents dialog for store and recall.
  • 10-digit display or 12-digit on RealCalc Plus.
  • Previous result history.
  • Unit conversions for distance, area, volume, mass, speed, time, force, pressure, energy, power, temperature and data sizes (user-customizable on RealCalc Plus).
  • Physical constants table (user-customizable on RealCalc Plus).
  • Home-screen widget - a simple four-function calculator with percent and square-root which can be placed on your home screen (RealCalc Plus only).
  • Fixed-point, scientific and engineering notation display modes, with adjustable decimal places.
  • Hexadecimal, octal and binary modes with logical operator functions.
  • Customizable decimal point and digit grouping format.
  • External keyboard support.
  • Three RPN styles (RealCalc Plus only):
    • Direct-entry with unlimited stack (classic RealCalc mode)
    • Buffered-entry with unlimited stack (like HP-48)
    • XYZT rolling stack (like HP-42)
  • Samsung multi-window support with drag & drop (RealCalc Plus only).
  • Configurable haptic and sound feedback for button clicks.
  • Copy and paste support for display value, internal value, memories, history and RPN stack.
  • Comprehensive built-in help.
  • High-resolution graphics for any display size or resolution.
  • Portrait and landscape orientation (RealCalc Plus only).

RealCalc is available from the Google Play Store and the Amazon Appstore. To download, click on the store icon below.

Latest News

FRIDAY, 16 OCTOBER 2015 09:00

RealCalc v2.3.1 released

What's new:

  • Fixed possible crash on a few devices running 5.1 (Jiayu S3, Lenovo K3 Note).

TUESDAY, 6 OCTOBER 2015 10:00

RealCalc v2.3.0 released

What's new:

  • Homescreen widget now supports RPN (follows app by default, can be changed in settings).
  • New delta-percent function.
  • Support for Android 6.0 Marshmallow.

THURSDAY, 23 JULY 2015 09:20

RealCalc v2.2.0 released

What's new:

  • Homescreen widget - a basic version of RealCalc with percent, square-root and memory which can be placed on your homescreen (RealCalc Plus only).
  • Bitwise shift and rotate functions in binary/octal/hex modes.
  • Values now truncated on conversion to integer for binary/octal/hex modes (rounding available as an option in settings).
  • Constants updated to latest NIST 2014 values.
  • Four-digit grouping option in Display Format settings.
  • Option to restore entry state on undo in RPN mode.
  • Minor UI improvements.

More news...