Hex Calculator

Author: Henrick Yau
- 5 August 2026
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Calculators

Convert between decimal, hexadecimal, binary, and octal number systems. This calculator provides bit-level operations and complete conversion details.

Number Input

Bit Operations

Display Options

About Number Systems

Different number systems use different bases to represent values. The most common are decimal (base 10), hexadecimal (base 16), binary (base 2), and octal (base 8).

Hexadecimal (Base 16)

Hexadecimal uses 16 digits: 0-9 and A-F (where A=10, B=11, ..., F=15). It's commonly used in computing because each hexadecimal digit represents exactly 4 binary digits (bits).

For example, the hexadecimal value 0xFF = 255 in decimal and 0b11111111 in binary.

Bitwise Operations
  • Shift Left (โ‰ช): Moves all bits to the left, equivalent to multiplying by 2.
  • Shift Right (โ‰ซ): Moves all bits to the right, equivalent to dividing by 2.
  • NOT (~): Inverts all bits (0 becomes 1, 1 becomes 0).
  • AND (&): Results in 1 only if both corresponding bits are 1.
  • OR (|): Results in 1 if at least one of the corresponding bits is 1.
  • XOR (โŠ•): Results in 1 if exactly one of the corresponding bits is 1.
Common Applications
  • Hexadecimal: Memory addresses, colour codes (e.g., #FF5733 in HTML), file formats
  • Binary: Digital circuits, computer memory, low-level programming
  • Octal: File permissions in Unix/Linux systems

What this hex calculator does

The Hex Calculator is a user-friendly tool designed for converting numbers between different systems, such as decimal, hexadecimal, binary, and octal. This calculator not only lets you convert numbers but also offers bit-level operations, making it a handy resource for both students and professionals. With clear input fields, you can easily enter your values and select the base system you're working with.

Using the hex calculator for conversions and bitwise operations

Using the Hex Calculator is straightforward. You simply need to enter the number you wish to convert and select its base from a dropdown menu. You can also perform bitwise operations such as shifting bits left or right, and apply functions like AND, OR, and NOT. These features can be especially useful when working with binary numbers and computer programming.

Understanding Number Systems

  • Decimal (Base 10): The standard system for everyday counting.
  • Hexadecimal (Base 16): Uses digits 0-9 and letters A-F; common in computing.
  • Binary (Base 2): Only uses 0 and 1; the foundation of digital systems.
  • Octal (Base 8): Uses digits 0-7; used in some computing contexts.

Bit-Level Operations Explained

The Hex Calculator includes several bit-level operations that allow you to manipulate binary numbers directly. Here are some of the operations you can perform:

  • Shift Left (โ‰ช): Moves bits to the left, effectively multiplying the number.
  • Shift Right (โ‰ซ): Moves bits to the right, dividing the number.
  • NOT (~): Inverts the bits, changing 0s to 1s and vice versa.
  • AND (&): Results in 1 only if both bits are 1.
  • OR (|): Results in 1 if at least one bit is 1.
  • XOR (โŠ•): Results in 1 if exactly one bit is 1.

Conversion Results You Can Expect

Once you enter your number and select the appropriate settings, the Hex Calculator will provide a clear breakdown of the results. You can view the converted values in decimal, hexadecimal, binary, and octal formats. Additionally, the calculator displays the bit representation and outlines the steps taken to reach the final result, ensuring you understand the conversion process.

Display Options for Customisation

The Hex Calculator offers a variety of display options to tailor your experience. You can choose to show conversion steps, include prefixes for each number (like 0x for hexadecimal), and even select whether to use uppercase letters in hexadecimal. Additionally, you can set the bit width and decide how to group the digits, making the output easier to read.

Where hex calculations are used in programming and design

The Hex Calculator is particularly useful in various fields such as programming, mathematics, and computer science. Here are some common applications:

  • Calculating memory addresses in computer programming.
  • Working with colour codes in web design.
  • Understanding low-level data representation for data analysis.

Why this tool helps with number systems and bitwise tasks

The Hex Calculator is an essential tool for anyone needing to work with different number systems and perform bitwise operations. Whether you're a student learning about number systems or a professional handling data, this calculator simplifies the process and provides valuable insights into conversions and operations. Its user-friendly layout makes it accessible for anyone to use effectively.

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