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).

Main window

License model

  • FreeOpen Source

Application type

Platforms

  • Mac
  • Windows
  • Linux
4.8 / 5 Avg rating (13)
98 likes
13comments
0 news articles

Features

Suggest and vote on features

Properties

  1.  Lightweight
  2.  Privacy focused

Features

  1.  Unit converter
  2.  Currency Conversion
  3.  Graphing calculator
  4.  Natural Language Processing
  5.  Persistent History
  6.  Variables
  7.  Exchange rates
  8.  Equation solving
  9.  Ad-free
  10.  No registration required
  11.  Works Offline
  12.  Hexadecimal
  13.  Fractions
  14.  Portable
  15.  Dark Mode
  16.  Periodic table
  17.  Reverse Polish notation (RPN)

Qalculate! News & Activities

Highlights All activities

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Recent activities

  • App icon
    POX added Qalculate! as alternative to CalcVerter
    4 days ago
  • jblackman199 and alexcoere liked Qalculate!
    7 days ago
  • App icon
    ydn368 added Qalculate! as alternative to Modular Calculator
    2 months ago
  • hced reviewed Qalculate!  
    3 months ago

    Super advanced yet very user friendly with something of a rarity in that it asks what you want intended to calculate if there are any dubious interpretations in your input.

  • Asumeh reviewed Qalculate!  
    3 months ago

    Right off the bat, I noticed that the setup file for this is bigger than the one for SpeedCrunch

    • SpeedCrunch setup file: 9.0 MB
    • Qalculate! setup file: 61.0 MB Just a minor gripe though.

    The setup wizard has an awfully classic look, kinda something from Windows XP or 98 (in my eyes at least). I ain't complaining about that though.

    I ran into some complications with the setup; turns out it was because of where I set up the app (it won't work if I...

  • Asumeh liked Qalculate!
    3 months ago
  • App icon
    Calcvat added Qalculate! as alternative to Calcvat
    4 months ago
  • App icon
    K0RR added Qalculate! as alternative to Liri Calculator
    4 months ago
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Qalculate! information

  • Developed by

    Hanna Knutsson
  • Licensing

    Open Source and Free product.
  • Rating

    Average rating of 4.8 (13 ratings)
  • Alternatives

    121 alternatives listed
  • Supported Languages

    • English

Our users have written 13 comments and reviews about Qalculate!, and it has gotten 98 likes

Qalculate! was added to AlternativeTo by kiplantt on Nov 21, 2009 and this page was last updated Jan 6, 2021. Qalculate! is sometimes referred to as Qalculate.

Comments and Reviews

   
 Post comment/review
Comment summary: Qalculate! is praised for its feature-rich offerings, including currency and unit conversions, symbolic calculations, and a simple periodic table. Users appreciate its fast development pace and open-source nature, with both graphical and terminal versions available. While many reviews are positive, highlighting its intuitive interface and professional quality, there is a negative comment about perceived russophobia and political ads.
lukalabudovic123
  
Top positive commentOct 6, 2020

A very professional piece of software. It could be $20 no problem. Contribute people what you can, either code or money to the programmers.

6
Asumeh
  
Positive commentDec 12, 2024

Right off the bat, I noticed that the setup file for this is bigger than the one for SpeedCrunch icon SpeedCrunch

  • SpeedCrunch setup file: 9.0 MB
  • Qalculate! setup file: 61.0 MB Just a minor gripe though.

The setup wizard has an awfully classic look, kinda something from Windows XP or 98 (in my eyes at least). I ain't complaining about that though.

I ran into some complications with the setup; turns out it was because of where I set up the app (it won't work if I store the program files in the Local folder, only in the Program Files folder; fortunately, I can still set it to install for only one user).

After setup, though, this is an awesome calculator! I don't know what coth is on about it being "russophobic" or something like that. I can say though that it has no ads :) Chock-full of features with lots of functions, although I'll admit it's a lot, so you might be a little overwhelmed for the first few days or so. I recommend you take a look at the classic version first before you try the new one.

There's also a command-line version available for simplicity's sake.

0
hced
  
Positive commentOct 30, 2022

Super advanced yet very user friendly with something of a rarity in that it asks what you want intended to calculate if there are any dubious interpretations in your input.

3
BubbleTea
  
Positive commentOct 12, 2022

Great calculator. It's intuitive and does everything I want it to.

3
rabbit5
  
Positive commentJul 28, 2022

Everything I need in a calculator (hex number input included) in a UI that is nice to look at!

2
coth
  
Negative commentMar 31, 2022

Unstarred. The app is russophobic and packed political ads

2 replies
ph soft

It is not like there are popups all the time or nagging text like in an android application. The only difference I could find from old versions seems to be the russian flag gone in the conversion. That may not be to your taste but the comment seems excessive.

Reply written May 14, 2022

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SergTTL

Russophobic? Good.

Reply written Jul 23, 2022

If this reply contains spam or other abuse, notify admins about it.
-5
maupdoc
  
Positive commentJun 19, 2021

Awesome, all features that a calculator could have.

5
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What is Qalculate!?

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). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (GTK+ and CLI).

Official Links