Number System Converter
Convert between number systems.
Input
Results
Number System Converter – Binary, Decimal, Hexadecimal, Octal
Use our free Number System Converter to quickly convert numbers between binary, decimal, hexadecimal, and octal systems. Enter your value, select the base, and get results instantly!
What is a Number System?
A number system is a way to represent numbers using a specific set of symbols. Common systems include:
- Binary (Base 2) – Uses 0 and 1, widely used in computers.
- Octal (Base 8) – Uses digits 0–7.
- Decimal (Base 10) – Standard numbering system, uses digits 0–9.
- Hexadecimal (Base 16) – Uses 0–9 and A–F, common in programming.
Why Use a Number System Converter?
- Easily convert numbers without manual calculation.
- Useful for programmers, students, and engineers.
- Check conversions between different bases quickly.
- Reduce errors when working with complex number systems.
How to Use the Number System Converter
- Enter your number in the input field.
- Select the base of your input number.
- Click the Convert button to see results in all bases.
- Use the Reset button to clear inputs and results.
Examples of Number System Conversion
- Binary 1010 = Decimal 10
- Decimal 255 = Hexadecimal FF
- Octal 77 = Decimal 63
- Hexadecimal 1A = Decimal 26
Tips for Accurate Conversion
- Ensure the input matches the selected base.
- Use uppercase letters for hexadecimal digits A–F for clarity.
- Check the results for programming or calculation tasks.
FAQs – Number System Converter
1. What is a binary number?
A binary number uses only 0 and 1. Example: 1010 in binary equals 10 in decimal.
2. How do I convert decimal to hexadecimal?
Enter the decimal number, select decimal as input, and see the hexadecimal result in the output.
3. Can I convert octal to binary?
Yes. Enter the octal value, select base 8, and convert to get binary and other bases.
4. Why use hexadecimal in programming?
Hexadecimal is shorter and easier to read than binary. It is commonly used in memory addresses and color codes.
5. Who can use this Number System Converter?
Students, programmers, engineers, or anyone working with different number systems can use it to save time and reduce errors.