Hex to Decimal

Hexadecimal numbers to Decimal conversion

"Hex to Decimal" Calculator

Hexadecimal Number to convert

Hexadecimal to Decimal Converter

What is Hexadecimal Number System?

The hexadecimal system (hex) is a positional numeral system with base 16. It uses digits 0-9 and letters A-F to represent values from 0 to 15.

How to Convert Hex to Decimal?

To convert a hexadecimal number to decimal, each position is multiplied by the corresponding power of 16:

  • A = 10 in decimal
  • B = 11 in decimal
  • C = 12 in decimal
  • D = 13 in decimal
  • E = 14 in decimal
  • F = 15 in decimal

Conversion Examples

Here are some examples of hex to decimal conversion:

  • FF hex = 15×16¹ + 15×16⁰ = 240 + 15 = 255 dec
  • 3E8 hex = 3×16² + 14×16¹ + 8×16⁰ = 768 + 224 + 8 = 1000 dec
  • A0 hex = 10×16¹ + 0×16⁰ = 160 + 0 = 160 dec

Where is Hexadecimal Used?

The hex system is widely used in:

  • Programming - for representing colors in web design (#FF0000 for red)
  • Computer systems - for memory addressing and data representation
  • Cryptography - for recording hashes and encryption keys
  • Networking - in MAC addresses and IP configurations

Benefits of Our Hex Calculator

Our online converter provides:

  • Instant hex to decimal conversion
  • Step-by-step conversion explanation
  • Accurate calculations
  • Simple and user-friendly interface

See Also

About "Hex to Decimal" Calculator

This calculator will help you to convert hexadecimal numbers to decimal. For example, it can help you find out what is 3E8 hex in decimal? (The answer is: 1000). Enter hexadecimal number (e.g. '3e8') and hit the 'Convert' button.

FAQ

Can hexadecimal digits be lowercase?

Yes. This converter accepts both uppercase and lowercase hex letters — '3e8' and '3E8' are treated as the same value, and both convert to decimal 1000.

How do you convert hexadecimal to decimal?

Multiply each hex digit by 16 raised to its position (counting from 0 on the right) and add the results. For example, hex 3E8 = (3×16²) + (14×16¹) + (8×16⁰) = 768 + 224 + 8 = 1000.

What is the largest hexadecimal number this converter accepts?

Up to 15 hex characters, close to the maximum integer size on a 64-bit system — for example, 'fffffffffffffff' converts to the decimal number 1152921504606846975.