Three simple steps
How to use this tool?
This free online converter translates C++ source code into Fortran in three simple steps.
- Step 1
Add your C++ code
Type, paste, or upload the C++ code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Fortran.
- Step 3
Review the result
Review, copy, or download the resulting Fortran code from the output editor.
See it in action
Examples of C++ to Fortran conversion
These examples show C++ source code and the corresponding Fortran 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.
C++ code
Fortran code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
C++ code
Fortran code
Language comparison
Key differences between C++ and Fortran
| Characteristic | C++ | Fortran |
|---|---|---|
| Syntax | C++ syntax is similar to C syntax, but with additional features such as classes and templates. | Fortran syntax is designed for scientific and engineering applications, with a focus on mathematical operations and array processing. |
| Paradigm | C++ supports multiple programming paradigms, including procedural, object-oriented, and generic programming. | Fortran is primarily a procedural programming language, but it also supports some object-oriented features. |
| Typing | C++ is a statically typed language, which means that variable types are determined at compile time. | Fortran is also a statically typed language. |
| Performance | C++ is known for its high performance and is often used for system-level programming and applications that require high-speed processing. | Fortran is also known for its high performance, particularly in scientific and engineering applications. |
| Libraries and frameworks | C++ has a large number of libraries and frameworks available, including the Standard Template Library (STL) and Boost. | Fortran has a smaller number of libraries and frameworks available compared to C++. |
| Community and support | C++ has a large and active community, with many resources available for learning and support. | Fortran also has a dedicated community, but it is smaller than the C++ community. |
| Learning curve | C++ has a steep learning curve due to its complexity and the many features it offers. | Fortran has a relatively low learning curve, particularly for those with a background in scientific or engineering applications. |
Common questions
Frequently Asked Questions
How do I convert C++ to Fortran?
Paste your C++ code into the input box, confirm the languages are set to C++ and Fortran, and click Convert. CodeConvert AI analyzes your C++ code and generates equivalent Fortran code in seconds, preserving the original logic and structure.
What are the main differences between C++ and Fortran?
C++ and Fortran differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each C++ construct to its closest Fortran equivalent. See the comparison table below for the key differences between C++ and Fortran.
Is the converted Fortran code accurate?
The AI produces high-quality Fortran code that preserves the behavior of your original C++ code and follows Fortran conventions. It handles common patterns, data structures, and idioms for both C++ and Fortran. For large or performance-critical code, review and test the Fortran output before using it in production.
Can I convert an entire C++ project to Fortran?
You can convert C++ 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 C++ to Fortran. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Fortran back to C++?
Yes. CodeConvert AI converts in both directions, so you can convert Fortran to C++ just as easily using our Fortran to C++ converter. Try the Fortran to C++ Converter
Is the C++ to Fortran 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 C++ to Fortran without an account for up to 5 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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