Decimal to Hex Converter

Convert decimal numbers to hexadecimal instantly. Transform regular numbers into hex for color codes, programming, and digital applications.

How to Use

  1. Enter a decimal number
  2. Hex equivalent appears instantly
  3. Choose format (uppercase, prefix)
  4. Copy the hex result

Features

  • Instant decimal to hex conversion
  • Multiple output formats
  • Uppercase or lowercase
  • Optional 0x prefix
  • Real-time conversion
  • Handles large numbers

About This Tool


Decimal to hexadecimal conversion transforms base-10 numbers into the base-16 hex format widely used in programming and digital applications.

The conversion uses repeated division by 16. Divide the decimal by 16, record the remainder (0-15, where 10-15 become A-F), repeat until the quotient is 0. Read remainders in reverse.

For example, decimal 255: 255÷16=15 R15, 15÷16=0 R15. Remainders 15, 15 become F, F, giving hex "FF".

Our converter handles the math instantly and offers various output formats: uppercase (FF) or lowercase (ff), with or without the 0x prefix. Choose the format matching your programming language or use case.

This is particularly useful for web developers creating color codes (255 → FF for full intensity), programmers working with hex addresses, and anyone needing compact number representation.

Frequently Asked Questions

How do I make a color code?
Convert each RGB value (0-255) to hex and combine them. For example, RGB(255, 128, 0) becomes FF8000.
What's hex for 256?
Decimal 256 = hex 100 (1×16² + 0×16¹ + 0×16⁰ = 256). This is the first 3-digit hex number.
Should I use uppercase or lowercase?
Both are valid and equivalent. Uppercase is traditional; lowercase is common in modern code. Be consistent.
When should I include 0x?
Use 0x in programming languages like C, JavaScript, and Python to indicate a hex literal.
Can I convert very large numbers?
Yes, the tool handles decimal numbers of any practical size, converting them to their hex equivalent.

Convert decimal numbers to hexadecimal instantly. Transform regular numbers into hex for color codes, programming, and digital applications.

Key Features

  • Instant decimal to hex conversion
  • Multiple output formats
  • Uppercase or lowercase
  • Optional 0x prefix
  • Real-time conversion
  • Handles large numbers

How to Use This Tool

  1. Enter a decimal number
  2. Hex equivalent appears instantly
  3. Choose format (uppercase, prefix)
  4. Copy the hex result
Decimal to hexadecimal conversion transforms base-10 numbers into the base-16 hex format widely used in programming and digital applications. The conversion uses repeated division by 16. Divide the decimal by 16, record the remainder (0-15, where 10-15 become A-F), repeat until the quotient is 0. Read remainders in reverse. For example, decimal 255: 255÷16=15 R15, 15÷16=0 R15. Remainders 15, 15 become F, F, giving hex "FF". Our converter handles the math instantly and offers various output formats: uppercase (FF) or lowercase (ff), with or without the 0x prefix. Choose the format matching your programming language or use case. This is particularly useful for web developers creating color codes (255 → FF for full intensity), programmers working with hex addresses, and anyone needing compact number representation.

Benefits

  • Create color codes
  • Format for programming
  • Convert memory addresses
  • Generate hex strings

Frequently Asked Questions

How do I make a color code?

Convert each RGB value (0-255) to hex and combine them. For example, RGB(255, 128, 0) becomes FF8000.

What's hex for 256?

Decimal 256 = hex 100 (1×16² + 0×16¹ + 0×16⁰ = 256). This is the first 3-digit hex number.

Should I use uppercase or lowercase?

Both are valid and equivalent. Uppercase is traditional; lowercase is common in modern code. Be consistent.

When should I include 0x?

Use 0x in programming languages like C, JavaScript, and Python to indicate a hex literal.

Can I convert very large numbers?

Yes, the tool handles decimal numbers of any practical size, converting them to their hex equivalent.

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