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Number Base Converter

Convert between Binary, Decimal, Hexadecimal, and Octal number systems instantly. Enter a number in any base and see all conversions simultaneously.

Ad 336x280
Ad 336x280
Ad 336x280
Binary (Base 2)
Enter a number
Decimal (Base 10)
Enter a number
Hexadecimal (Base 16)
Enter a number
Octal (Base 8)
Enter a number
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Quick Values
0
1
10
16
32
64
100
128
255
256
512
1024
Legal Disclaimer / Yasal Uyarı: This tool performs mathematical conversions between number bases. Results are accurate for standard numeral systems. / Bu araç sayı tabanları arasında matematiksel dönüşümler yapar. Sonuçlar standart sayı sistemleri için doğrudur.

About Number Base Converter

Our free Number Base Converter helps you convert numbers between different numeral systems instantly. Whether you're a developer working with binary data, a student learning about different number systems, or anyone who needs to convert between bases, this tool makes it simple.

How to Use

  1. Select the base of the number you're entering (Binary, Decimal, Hexadecimal, or Octal).
  2. Enter the number in the input field.
  3. Click "Convert" or press Enter to see all conversions.
  4. View the converted values in all four number bases simultaneously.
  5. Click "Copy" next to any result to copy it to your clipboard.
  6. Use the Quick Values section for common numbers.
  7. Click "Clear" to reset the form.

Number Base Systems

Binary (Base 2): Uses digits 0 and 1. Fundamental to computer systems and digital electronics.
Decimal (Base 10): Uses digits 0-9. The standard number system used in everyday life.
Hexadecimal (Base 16): Uses digits 0-9 and letters A-F. Common in programming for memory addresses and color codes.
Octal (Base 8): Uses digits 0-7. Used in some computing systems and file permissions.

Frequently Asked Questions

What is the largest number I can convert?

This converter handles numbers up to JavaScript's safe integer limit (9,007,199,254,740,991). For binary and hexadecimal representations, even larger numbers are supported.

Are the conversions accurate?

Yes, all conversions are mathematically accurate using standard algorithms for base conversion.

Can I convert fractional numbers?

This tool is designed for integer conversions. For fractional numbers, the decimal part will be truncated.

Why is hexadecimal used in programming?

Hexadecimal is compact (4 bits per digit vs 1 bit per binary digit) and easy to convert to/from binary, making it ideal for representing memory addresses, colors, and binary data.

Is my data stored?

No. All conversions happen locally in your browser. No data is transmitted to our servers or stored anywhere.