Decimal to Hex Converter
Convert decimal numbers to hexadecimal. Choose output format (plain, 0x prefix, ...Convert decimal numbers to hexadecimal. Choose output format (plain, 0x prefix, or # for colors).
Common Values
Color Preview
Converter Features
Why Use Decimal to Hex Converter?
Division Method Breakdown
See the step-by-step division process showing how each hex digit is derived from your decimal number.
Batch Conversion
Convert multiple decimal numbers at once using comma-separated or newline-separated values.
Output Formats
Choose between plain hex (FF), 0x prefix (0xFF), or # prefix (#FF) for CSS colors.
100% Private
All calculations happen locally in your browser. No server processing needed.
Color Preview
Automatically shows a color preview when the result is a valid 6-digit hex color code.
Multi-Base Output
See the equivalent binary and octal representations alongside the hex result.
Common Uses for Decimal to Hex
CSS Color Codes
Convert RGB decimal values to hex color codes for web design and CSS styling.
Programming
Convert decimal values to hex for memory addresses, bitwise operations, and low-level coding.
Networking
Convert decimal IP components and port numbers to hexadecimal notation.
Education
Learn the division method for decimal-to-hex conversion with step-by-step breakdowns.
How It Works
Choose Mode & Format
Select single or batch mode, then pick your output format (plain, 0x prefix, or # for colors).
Enter Decimal Numbers
Type a decimal number or paste multiple values separated by commas, spaces, or newlines.
Copy the Result
View the hex result with binary and octal equivalents. Click 'Copy' to copy to clipboard.
Tips & Information
Color Codes
Use the # format option to get CSS-ready color codes. Enter 16777215 for #FFFFFF (white) or 255 for #0000FF-range values.
Quick Reference
Common conversions: 255 = FF, 256 = 100, 65535 = FFFF. Click the common values buttons for instant examples.
Large Numbers
JavaScript safely handles integers up to 9,007,199,254,740,991. Very large numbers may lose precision.