Calculators

Math is hard. Sometimes, even putting down expressions in numerical form is difficult, let alone solving or simplifying them. That’s where calculator applications such as SpeedCrunch and fxSolver come into play. Though the built-in calculator applications on your phone or computer may often suffice, sometimes the extra robust ability of the other software on this page can be a real lifesaver.

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  1. Wolfram Alpha icon
    Wolfram Alpha icon

    Wolfram Alpha

     481 likes

    Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.

    57 Wolfram Alpha alternatives
    Wolfram Alpha screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Kindle Fire
    Wolfram Alpha screenshot 1
    Wolfram Alpha screenshot 2
    +2
    Wolfram Alpha screenshot 3

    Wolfram Alpha Features

    1.  Equation solving
    2.  Built-in search engine
    3.  No registration required
    4.  Ad-free
  2. SpeedCrunch icon
    SpeedCrunch icon

    SpeedCrunch

     285 likes

    SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.

    128 SpeedCrunch alternatives
    on kde

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • PortableApps.com
    on mac osx
    on vista

    Properties

    1.  Support for Themes
    2.  Lightweight
    3.  Privacy focused

    Features

    1.  Variables
    2.  Persistent History
    3.  Portable
    4.  Input history
    5.  Live Preview
    6.  Syntax Highlighting
    7.  Ad-free
    8.  Works Offline
    9.  No registration required
    10.  Activity history
    11.  Multiple languages
    12.  Inline editing
    Discontinued

    Last release 2016. Only available in Windows 32-bit binary.

  4. Qalculate! icon
    Qalculate! icon

    Qalculate!

     98 likes

    Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

    121 Qalculate! alternatives
    Main window

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    History
    Keypad
    +7
    Programming

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Unit converter
    2.  Currency Conversion
    3.  Natural Language Processing
    4.  Persistent History
    5.  Variables
    6.  Ad-free
    7.  No registration required
    8.  Exchange rates
    9.  Equation solving
    10.  Works Offline
    11.  Portable
    12.  Dark Mode
  5. Fossify Calculator icon
    Fossify Calculator icon

    Fossify Calculator

     19 likes

    Introducing Fossify Calculator – your versatile and efficient tool for all your calculation needs. Enjoy a stylish, modern design paired with powerful functionality, perfect for both simple calculations and more complex tasks like currency conversion.

    54 Fossify Calculator alternatives
    Fossify Calculator screenshot 1
    Fossify Calculator screenshot 2
    +2
    Fossify Calculator screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Support for Themes

    Features

    1.  Ad-free
    2.  No registration required
    3.  Dark Mode
    4.  No Tracking
    5.  Works Offline
    6.  Unit converter
    7.  Activity history
  6. Hurmet icon
    Hurmet icon

    Hurmet

     15 likes

    Hurmet is a web-based rich text editor endowed with live calculations. With it, you can create documents that do calculations and preserve an easy-to-read record of your work.

    11 Hurmet alternatives
    Hurmet screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Ad-free
    2.  Notebook
    3.  Embedded comments
    4.  Support for MarkDown
    5.  Syntax Highlighting
    6.  Live Preview
    7.  Code Formatting
    8.  Full-Text Search
    9.  Built-in Commenting System
    10.  Rich Text Editor
    11.  Undo and redo
  7. Ad
    Screenshot
    uCalc icon

    uCalc

    uCalc - the designer of calculators of services and delivery, lead forms, forms of armor, recall, feedback, registration for an event.

    Learn More
  8. SageMath icon
    SageMath icon

    SageMath

     153 likes

    SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more.

    63 SageMath alternatives
    Dynamically visualize effects of of parameters on calculations with Interact

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Draw Region Plots where the given equality, inequality or set of them is true.
    Visualize all pairs of characters in a sentence with a Multiedge Graph

    Properties

    1.  Lightweight

    Features

    1.  Symbolic Computation
    2.  Calculus solving
    3.  CAS
    4.  Python-based
    5.  Ad-free
    6.  Currency Conversion
    7.  Portable
    8.  Works Offline
    9.  Dark Mode
    10.  No registration required
  9. Numbat icon
    Numbat icon

    Numbat

     23 likes

    High precision scientific calculator with full support for physical units (web and terminal versions).

    73 Numbat alternatives
    Numbat screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    Numbat screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Ad-free
    2.  Web-Based
    3.  No registration required
    4.  Console-based
    5.  Works Offline
    6.  Unit converter
    7.  Dark Mode
    8.  Currency Conversion
    9.  Syntax Highlighting
    10.  Portable
  10. OpenCalc icon
    OpenCalc icon

    OpenCalc

     17 likes

    A simple and beautiful calculator for Android.

    74 OpenCalc alternatives
    OpenCalc screenshot 1
    OpenCalc screenshot 2
    +1
    OpenCalc screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • Android Tablet
    • F-Droid

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Ad-free
    2.  Material design
    3.  Dark Mode
    4.  No registration required
    5.  Works Offline
  12. fxSolver icon
    fxSolver icon

    fxSolver

     59 likes

    Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.

    141 fxSolver alternatives
    Solver page

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Online
    Plot sample
    Variable Linking
    +8
    Formula Search

    fxSolver Features

    1.  Formula Builder
    2.  Equation editor
    3.  Editable calculations
    4.  Engineering calculator
    5.  Equation solving
    6.  Shared links
    7.  Graphs
    8.  Built-in editor
  13. yetCalc icon
    yetCalc icon

    yetCalc

     6 likes

    The free and open source calculator developed for Android 5.0 and above using Kotlin. yetCalc's calculator mode uses the mXparser library. Large calculations are handled without device freezing and other issues, although some calculations might take time.

    34 yetCalc alternatives
    Basic mode in dark theme

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid
    Basic mode in light theme
    Scientific mode
    +3
    History of calculations

    Properties

    1.  Privacy focused

    Features

    1.  Dark Mode
    2.  Ad-free
    3.  No registration required
    4.  Currency Conversion
    5.  Unit converter
    6.  Scientific Calculator
  14. Numi icon
    Numi icon

    Numi

     26 likes

    Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...

    122 Numi alternatives
    Numi screenshot 1

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Mac
    Numi screenshot 1
    Numi screenshot 2
    +3
    Numi screenshot 3

    Properties

    1.  Lightweight

    Features

    1.  Works Offline
    2.  No registration required
    3.  Currency Conversion
    4.  Ad-free
    5.  Dark Mode
    6.  Side-by-Side View
    7.  Real-time translation
    8.  Natural Language Processing
    9.  Sits in the MenuBar
    10.  Data export/import
    11.  Support for Keyboard Shortcuts
  15. Soulver icon
    Soulver icon

    Soulver

     31 likes

    Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?

    117 Soulver alternatives
    Soulver screenshot 1

    License model

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    Soulver screenshot 1
    Soulver screenshot 2
    +14
    Soulver screenshot 3

    Soulver Features

    1.  Works Offline
    2.  Currency Conversion
    3.  Natural Language Processing
    4.  Side-by-Side View
    5.  Editable calculations
  16. Calculator You icon
    Calculator You icon

    Calculator You

     4 likes

    Discover the ultimate calculator experience with our beautifully designed app, featuring 60+ stunning color themes to match your style. Whether you're tackling complex scientific equations or simple everyday calculations, our powerful and user-friendly interface makes it all...

    53 Calculator You alternatives
    Calculator You screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  No registration required
    2.  Currency Conversion
    3.  Dark Mode
    4.  Ad-free
    5.  Works Offline
    6.  Material design
    7.  Unit converter
  17. GeoGebra Scientific Calculator icon
    GeoGebra Scientific Calculator icon

    GeoGebra Scientific Calculator

     8 likes

    Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!

    132 GeoGebra Scientific Calculator alternatives
    GeoGebra Scientific Calculator screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    GeoGebra Scientific Calculator screenshot 1
    GeoGebra Scientific Calculator screenshot 2
    +5
    GeoGebra Scientific Calculator screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
  18. Google Calculator icon
    Google Calculator icon

    Google Calculator

     43 likes

    Calculator provides simple and advanced mathematical functions in a beautifully designed app.

    163 Google Calculator alternatives
    Google Calculator screenshot 1

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Android
    • Chrome OS
    • Android Tablet
    • Android Wear
    Google Calculator screenshot 1
    Google Calculator screenshot 2
    +6
    Google Calculator screenshot 3

    Google Calculator Features

    1.  Ad-free