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Calcimator

Decimal Converter

Convert decimal numbers to binary, hexadecimal, and octal. Essential tool for programming and computer science.

Convert

Results

Binary
11111111
Binary (8-bit)
11111111
Hexadecimal
FF
Hex (0x)
0xFF
Octal
377
How to Use This Calculator
  1. Enter the Decimal Number you want to convert (e.g., 255 for 0xFF).
  2. Instantly see the Binary representation — useful for bit-masking and low-level programming.
  3. Read the Hexadecimal output (with 0x prefix) — commonly used in color codes, memory addresses, and protocols.
  4. Check the Octal value for Unix file permission calculations.
  5. Use the 8-bit and 16-bit padded binary forms when working with fixed-width data fields.
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Formula

Convert decimal to different number bases

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