Software Alternatives & Startups
Register | Login

GNU Units VS Calcumber

Compare GNU Units VS Calcumber and see what are their differences

GNU
GNU Units

The Units program converts quantities expressed in various scales to their equivalents in other...

Rating
0 reviews
Alternatives Is it good?
Calcumber

Calculate in a notebook and share — from everyday math to engineering.

Rating
0 reviews
Pricing
Free
Alternatives Is it good?
FlexiQuiz
FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. sponsored

Which is more popular?

Calculators popularity
100% vs 0%
alternatives listed
63 vs 7

Base details

Website, pricing, platforms and company facts side by side.

GNU
GNU Units
Calcumber
Website gnu.org calcumber.app
Pricing —
Free
Platforms —
Web Windows Linux Mac +1
Company — Startup from Switzerland · 1 - 9 employees · 2025
Listed in
Calculators Unit Converters Knowledge Search Online Calculators +1
Education Math Tools Online Calculators Engineering Calculator Math Calculators Math Solver +3

About GNU Units and Calcumber

In their own words, as submitted to SaaSHub.

GNU
GNU Units
Calcumber

No description of GNU Units yet.

Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.

Read more about Calcumber

Features and specs

What each product offers, as listed by its team.

GNU
GNU Units 5 features
Calcumber 7 features
  • Comprehensive Unit Library
    GNU Units includes a vast library of units and conversions, allowing users to convert between a wide range of measurement systems with ease.
  • Flexibility
    The software allows for user-defined units and complex expressions, providing flexibility for customized conversions and calculations.
  • Precision
    GNU Units performs conversions with high precision, reducing the risk of errors in critical calculations.
  • Open Source
    As an open-source program, it is freely available for use and modification, promoting greater accessibility and community improvements.
  • Cross-Platform
    GNU Units is compatible with various operating systems, making it a versatile tool for users across different platforms.

Possible disadvantages

  • Command Line Interface
    The reliance on a command-line interface can be a barrier for users not comfortable with text-based inputs.
  • Learning Curve
    The program may have a steep learning curve for users unfamiliar with command-line tools or unit conversion syntax.
  • Limited GUI Options
    While powerful, GNU Units does not include a graphical user interface, which may limit usability for some users.
  • Documentation Complexity
    Though comprehensive, the detailed documentation can be overwhelming for new users trying to perform simple conversions.
  • 🌿 Naturally type expressions
    get immediate results
  • 🔗 Copy and share
    keep calculations editable with a link
  • 🧩 Variables and constants
    pi, e, G, mu0
  • 🧪 Scientific functions
    sin, acos, log, round, and more
  • ♨️ Thermodynamic fluid properties
    refrigeration, heat pumps, steam and air
  • 💡 Installation optional
    run directly in your browser
  • 📱 Multi-platform
    WebApp, Windows, more to come

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
GNU
GNU Units
Calcumber
100% 100%
Calculators
0% 0%
60% 60%
Online Calculators
40% 40%
100% 100%
Knowledge Search
0% 0%
0% 0%
Education
100% 100%

Questions & Answers

As answered by people managing GNU Units and Calcumber.

Why should a person choose your product over its competitors?

Calcumber's answer:

  • Sharing calculations and embedding them in documents or web pages is perfect for education.
  • Natural unit support, just include them in your expression and Calcumber handles it.
  • Free and easy access to thermodynamic fluid-properties.

What makes your product unique?

Calcumber's answer:

  • Easy to use calculator notebook
  • From simple arithmetic to advanced engineering with units
  • Installation optional
  • Send calculation link with full privacy
  • Embed calculation templates, exercices and soultions in documents or interactively in web pages

What's the story behind your product?

Calcumber's answer:

When starting for a Master of Advances Study in Energy Systems, I was looking for a suitable state-of-the-art calculator. Then I built my own Calculator Calcumber and now the Eastern Switzerland University of Applied Sciences is using Calcumber for teaching students in thermodynamics.

How would you describe the primary audience of your product?

Calcumber's answer:

  • The notebook-style calculator is great for everybody who wants more than just a single line calculator.
  • The sharing and embedding features make it Calcumber very well suited for teachers and students. The power of consistently using units is shown immediatly.
  • Engineers will like the unit support, sharing calculations with collegues and if needed the built-in fluid properties calculation.

Which are the primary technologies used for building your product?

Calcumber's answer:

HTML, CSS, TypeScript, PWA, CoolProp

Who are some of the biggest customers of your product?

Calcumber's answer:

Eastern Switzerland University of Applied Sciences

User comments

Share your experience with using GNU Units and Calcumber. For example, how are they different and which one is better?

Log in or Post with

Alternatives to GNU Units and Calcumber

When comparing GNU Units and Calcumber, you can also consider the following products.

Loading...