Three simple steps
How to use this tool?
This free online converter translates Fortran source code into C++ in three simple steps.
- Step 1
Add your Fortran code
Type, paste, or upload the Fortran code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into C++.
- Step 3
Review the result
Review, copy, or download the resulting C++ code from the output editor.
See it in action
Examples of Fortran to C++ conversion
These examples show Fortran source code and the corresponding C++ translation. Generated results can vary as AI models are updated.
Example 1
Is String Palindrome
Program that checks if a string is a palindrome or not.
Fortran code
C++ code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Fortran code
C++ code
Language comparison
Key differences between Fortran and C++
| Characteristic | Fortran | C++ |
|---|---|---|
| Syntax | Fortran has a simpler syntax compared to C++. | C++ has a more complex syntax compared to Fortran. |
| Paradigm | Fortran is primarily a procedural language with some support for object-oriented programming. | C++ is a multi-paradigm language that supports procedural, object-oriented, and generic programming. |
| Typing | Fortran is a statically typed language. | C++ is a statically typed language with support for dynamic typing through templates and runtime type identification (RTTI). |
| Performance | Fortran is known for its high performance in scientific and engineering applications. | C++ is also known for its high performance and is often used in systems programming and game development. |
| Libraries and frameworks | Fortran has a smaller selection of libraries and frameworks compared to C++. | C++ has a large selection of libraries and frameworks available, including Boost, Qt, and STL. |
| Community and support | Fortran has a smaller community compared to C++. | C++ has a large and active community with many resources and support available. |
| Learning curve | Fortran has a steeper learning curve compared to C++. | C++ has a relatively steep learning curve, but it is easier to learn than Fortran due to its more modern syntax and larger community. |
Common questions
Frequently Asked Questions
How do I convert Fortran to C++?
Paste your Fortran code into the input box, confirm the languages are set to Fortran and C++, and click Convert. CodeConvert AI analyzes your Fortran code and generates equivalent C++ code in seconds, preserving the original logic and structure.
What are the main differences between Fortran and C++?
Fortran and C++ differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Fortran construct to its closest C++ equivalent. See the comparison table below for the key differences between Fortran and C++.
Is the converted C++ code accurate?
The AI produces high-quality C++ code that preserves the behavior of your original Fortran code and follows C++ conventions. It handles common patterns, data structures, and idioms for both Fortran and C++. For large or performance-critical code, review and test the C++ output before using it in production.
Can I convert an entire Fortran project to C++?
You can convert Fortran files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Fortran to C++. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert C++ back to Fortran?
Yes. CodeConvert AI converts in both directions, so you can convert C++ to Fortran just as easily using our C++ to Fortran converter. Try the C++ to Fortran Converter
Is the Fortran to C++ converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Fortran to C++ without an account for up to 2 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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