Calculator is the default calculator application of Ubuntu. This program, originated from The GNOME Project, has simple interface, provides basic calculation ability useful in daily life as well as advanced and programming calculation abilities including financial ones. This is a mandatory utility to a general-purpose operating system like Ubuntu that serves humanity (as the name Ubuntu itself means humanity for others).
Subscribe to UbuntuBuzz Telegram Channel to get article updates.
Logo
Original Logo
Screenshots
Click picture to enlarge.
 |
 |
 |
(a) |
(b) |
(c) |
 |
 |
 |
(d) |
(e) |
(f) |
Where:
(a) Basic mode showing it is ready to be a desk calculator.
(b) Advanced mode showing it is ready for conversions (i.e. for mass and length), function(x) (i.e. ceiling() and floor()), and trigonometry (i.e. as cos, sin, tan).
(c) Financial mode showing it is ready for currency conversion and several financial functions.
(d) Programming mode showing it is ready for decimal-binary conversion and a lot of functions including boolean logic like AND, OR, NOT.
(e) Keyboard mode showing similar interface to (b) designed for rapid use with keyboard.
(f) User manual showing "Help" title with the chapters visible "User Interface", "Equations" and "Numbers". Press F1 to access this.
Description
Calculator or GNOME Calculator is the default calculation application on Ubuntu. This application provides a complete set of functionalities ranging from basic use (for home users and small shops), advanced use (for academia and science people), financial use (for currency and finance) and programming use (for programmers and computer science students) shipped with a detailed user manual. To Ubuntu users, Calculator helps in doing simple math for daily purchasing, converting binary to (hexa)decimal and vice versa if they are programmers, converting between currencies (for example ID Rupiah to/from US Dollar), up to any other calculation one might think and imagine. Calculator is simple in look and feel and is easy to use. Calculator is free software licensed under GNU General Public License v3+.
Purposes
1. Calculator solves mathematical equations.
2. It solves other problems including advanced math, boolean logic, financial & currency-related, as well as .
3. It converts numbers in binary, decimal, octal and hexadecimal.
4. It converts between units in physics and chemistry.
5. And many more.
How to run the program
1. Click Ubuntu menu button -> find Calculator -> click it.
2. Run Terminal -> type gnome-calculator -> press Enter.
3. Press Super key -> type 1+1 -> calculation result will show.
As for package information, GNOME Calculator is packaged as DEB package and not Snap by default on Ubuntu 24.04 "Noble Numbat".
Pro Tip!
Want to learn more about Ubuntu command lines? Please read our Jewel and Pearl: Learn by Practice The Command Lines From The Basics that includes explanation as well as step by step practices you can follow. Good luck!
Location on screen
Calculator can be found on the applications menu as Calculator.
Usage examples
To calculate simple math:
To convert decimal to binary:
Contributing to Calculator
Calculator is part of GNOME. Thus, you can contribute to Calculator just like how you contribute to other GNOME applications. You can do many things to participate such as make a donation to help fund the project, or help translate Calculator to your language, or if you are a programmer, help improving Calculator's source code, or simply reporting a bug to the project is considered a contribution and many more. Programmatically, Calculator is written in Vala language with GTK libraries by using (optionally) GNOME Builder code editor. Finally, your contribution to Calculator will benefit GNOME, Ubuntu and other GNU/Linux projects as well. To start participating, feel free to see Calculator's Official Webpage from References section below.
****
Similar programs
KCalc - the calculator from KDE default to Kubuntu.
References
Source Code and Development Central
In this Series
<- Go Back to "Baobab (Disk Usage Analyzer)"
<- Go Back to "List of All Ubuntu 24.04 Default Applications"
-> Go next to "Calendar"
-> Go next to "Camera"
****
This article is licensed under CC BY-SA 3.0.