In this piece, we will construct a simple currency converter in c programming, which will be developed using the C programming language.
A calculator known as a currency converter is a device that changes the value or quantity of one currency into the comparable value or quantity of additional currencies.
For instance, if you lived in the United States and desired to travel to another country, you would need to be aware of the exchange rate for one dollar in the local currency of the destination country.
If you were traveling to certain parts of the Philippines, you would need to know the dollar to Philippine peso conversion. If you were traveling to Japan, you would need to know the dollar to yen conversion.
If you were traveling to Thailand, you would need to know the dollar to baht conversion. If you were traveling to Kuwait, you would need to know the dollar to Korean won conversion.
This currency converter is written in C, and it also comes with a free download of the source code. Simply look for the source code that can be downloaded below, and then click the “Download” button.
Before beginning the process of developing a Currency Converter Language, you must first ensure that your computer is equipped with either Code Blocks or another C-based platform.
| ABOUT PROJECT | PROJECT DETAILS |
|---|---|
| Project Name : | Currency Converter |
| Project Platform : | C/C++ |
| Programming Language Used: | C Programming Language |
| Developer Name : | itsourcecode.com |
| IDE Tool (Recommended): | Dev-C++/Codeblocks |
| Project Type : | Desktop Application |
| Database: | Stores data in .DAT file |
What is the use of currency converter?
The application given the name Currency Converter performs the process of converting monetary values from one currency to two others.
You have the option of displaying any one of three different currencies: dollars, euros, or yen. After making your selection, enter a value in any one of those currencies to have it converted into the others.
How do I use Google currency converter?
In the field designated for the search, type “Google Currency Converter.” When you conduct a Google Search, a currency converter box will immediately load at the very top of the page displaying the search results. Enter the initial amount, as well as the type of currency used.
How many types of currency are there?
There are 180 different currencies that are acknowledged as valid forms of payment in United Nations (UN) member states, non-member observer states of the UN General Assembly, states that are partially recognized or not recognized at all, and their dependent territories.
Can you do currency conversions in Excel?
In a separate cell, use the following format to enter the currency pair: Using the ISO currency codes for the From Currency and To Currency conversion.
Entering “USD/EUR,” for instance, will provide you with the current exchange rate for one United States Dollar to one Euro. After selecting the cells, go to the Insert menu and select Table.
Currency Converter Project in C Steps on How to Create a Project
Time needed: 5 minutes
Here’s the step’s on how to create a Currency Converter in C with Source Code.
- Step 1: Create a new project.
First open the code blocks IDE and click “create a new project“.
- Step 2: Choose console application.
Next, click the “console application” and after that click “next“.
- Step 3: Choose C language.
Then , choose “C language” and click “next“.
- Step 4: Name your project.
Lastly, name the project you’ve created and click “next” after that click “finish“.
- Step 5: The actual code.
Finally, we will now start adding functionality to our C Framework by adding some functional codes.
This Currency Converter Project in C with Source Code was build and run under Code::Blocks IDE.
A currency converter keeps track of the most recent market valuations for all of the world’s currencies, allowing users to compare one currency’s value to that of others in the database.
- Output for main window in Calculator in C with Source Code.
Downloadable Source Code
Conclusion
I really hope that this straightforward instruction helps you find what it is that you need, and that it also teaches us how to build a currency converter system using the C programming language.
Please let us know in the comments section below if you discovered any errors in this tutorial. Simply visit this website whenever you want the latest information and instructional guides. Happy coding!
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Inquiries
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Frequently Asked Questions
How does this C or C++ project work?
Console application written in C (compiled with gcc) or C++ (compiled with g++). Uses standard library (stdio.h, conio.h, string.h, time.h) or C++ STL (iostream, vector, string, map). File-handling via fopen/fwrite or fstream for persistence. Foundation BSIT 1st-2nd year mini-project.
What compiler do I need to run this C or C++ project?
For C: gcc (GNU Compiler Collection) or MinGW (Windows). For C++: g++. IDE options: Code::Blocks (lightweight, built-in compiler), Dev-C++ (classic Philippine BSIT favorite), Visual Studio Code with C/C++ extension, CLion (paid). To compile from terminal: gcc program.c -o program (for C) or g++ program.cpp -o program (for C++), then run with ./program (Linux/macOS) or program.exe (Windows).
How do I run this C / C++ project?
Open the .c or .cpp file in your IDE (Code::Blocks, Dev-C++, VS Code). Click Build (or press F9), then Run (or press F5). From terminal: navigate to project folder, run gcc/g++ command above, then ./program. If using file storage, make sure the data file (e.g. records.txt) is in the same folder as the executable.
Can I use this C / C++ project for a BSIT capstone or thesis?
C/C++ projects are usually accepted for 1st-2nd year mini-projects or as building blocks. For a full capstone you would typically pair them with a more interactive frontend (e.g. wrap C++ logic with a Java/Python/PHP frontend, or extend to GTK/Qt for a real GUI). Standalone console C++ capstones are accepted by some panels but rare in 2026.
Why am I getting ‘undeclared identifier’ or ‘cannot find header’ errors?
Three common C/C++ issues: (1) Missing #include directive, e.g. #include
Where can I find more C or C++ projects with source code?
Browse the C and C++ Projects hub for the full library. For Java desktop alternatives see Java Projects. For higher-level languages see Python Projects. For BSIT capstone idea lists see 150 Best Capstone Project Ideas.
Adones Evangelista
Programmer & Technical Writer at PIES IT Solution
Adones Evangelista is a programmer and writer at PIES IT Solution, author of over 900 tutorials and error-fix guides at itsourcecode.com. Specializes in JavaScript, Django, Laravel, and Python error debugging covering ValueError, TypeError, AttributeError, ModuleNotFoundError, and RuntimeError, plus C/C++ and PHP capstone projects for BSIT students.
Expertise: JavaScript · Python · Django · Laravel · Error Debugging · C/C++ · View all posts by Adones Evangelista →