Binary To Decimal Converter
Convert between binary, octal, decimal, and hexadecimal instantly. Step-by-step conversion explanation.
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About Number System Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). Shows step-by-step conversion process for learning. Also shows twos complement for signed integers.
Number system conversion is a fundamental topic in computer science and digital electronics. Binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) are the four number systems every programmer must understand. This tool is used by students studying for GATE, computer science board exams, and professional developers working with memory addresses and colour codes.
How to use
- Enter your values in the input fields — results update instantly as you type.
- No submit button needed. The tool calculates in real time.
- Copy your result or share it via WhatsApp or Twitter using the buttons above.
- Use the workflow links below to chain into related tools for a complete task.
- All processing is browser-only. Nothing you enter is sent to any server.
Tool details
⚡ Next step — complete your workflow
Frequently asked questions
Convert decimal 255 to hexadecimal?
255 ÷ 16 = 15 remainder 15. 15 remainder 15. So 255 = FF in hex. Also 11111111 in binary. Our tool shows all conversions instantly.
Why use hexadecimal in programming?
Hex is compact — one hex digit = 4 binary bits. Easier to read memory addresses and colour codes (#FFFFFF) than equivalent binary.
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