PG Calculator

PG Calculator is a scientific and financial calculator for Android with customizable user interface. It works in Algebraic and RPN modes.


  1. General
  2. Description
  3. Download
  4. Old versions


Developer: Piotr Gridniew

Category: Productivity

Latest version: 1.5.1

Total versions: 5

Submitted: 23 Oct 2014

Updated: 23 Oct 2014


Do you need a simple calculator which allows you to do basic mathematical operations? Or perhaps you are more demanding user and need to calculate trigonometric functions or logarithms?

Do you prefer to calculate complete algebraic expressions... or maybe you are a fan of Reverse Polish Notation (RPN)?

Would you like to have a calculator which looks like 'real' on the screen of your smartphone?

All of this and much more is offered by PG Calculator - the only calculator you will ever need.

PG Calculator is an application that turns your smartphone or tablet into a powerful scientific calculator with nice and simple user interface.

PG Calculator offers two operational modes: algebraic and RPN:

  • In algebraic mode you can enter the entire math expressions such as (2+3)*(4-1) or sin(Pi/3)+cos(Pi/6). It then gives you the correct result according to the conventional mathematical operators.
  • In RPN (Reverse Polish Notation) mode you first input your numbers and then tell calculator what to do with them. So for example if you want to calculate (3+4)*5 you simply type as follows: 3 ENTER 4 ENTER + 5 ENTER *. The ENTER key places the number on stack and the operator keys do the task on the numbers.

Key features:

  • Two operational modes: algebraic and RPN;
  • Basic mathematical operations such as addition, subtraction, multiplication and division;
  • Exponentiation and the calculation of square roots;
  • Basic and inverse trigonometric functions;
  • The natural logarithms and the decimal;
  • Calculator allows you to enter numbers in decimal, binary, octal and hexadecimal;
  • Calculator offers the possibility to change the appearance of the user interface with built-in 'skins';

NOTE: This version of the application is free. It displays ads but has the same functionality as the 'PG Calculator (Standard)' edition.


PG Calculator 1.5.1 seem to be the latest available version. Below you can find file(s) assigned to this version:

Old versions

Below are the earlier versions of PG Calculator.

PG Calculator 1.4.6

Description/changelog of PG Calculator 1.4.6:

[no description available for this version]


PG Calculator 1.4.5

Description/changelog of PG Calculator 1.4.5:

Released: Jun 10th 2011

  • Improved scaling on high-resolution devices


PG Calculator 1.4.4

Description/changelog of PG Calculator 1.4.4:

Released: June 2, 2011

  • Fixing the problem with input of the decimal number and locales using "," as the decimal separator.


PG Calculator 1.4.14

Description/changelog of PG Calculator 1.4.14:

[no description available for this version]



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