Decimal to Hexadecimal Converter

Convert decimal numbers (base 10) to hexadecimal numbers (base 16)

Common Conversions

Decimal Hexadecimal
10 0xA
15 0xF
16 0x10
255 0xFF
256 0x100

About Hexadecimal

Hexadecimal (hex) is a base-16 number system that uses 16 distinct symbols: 0-9 represent values 0 to 9, and A-F represent values 10 to 15. Hex is commonly used in computing and programming to represent binary data in a more compact, human-readable format. For example, the RGB color white is represented as #FFFFFF in hex.

Related Number System Converters

  • Hexadecimal to Decimal
  • Decimal to Binary
  • Binary to Hexadecimal
  • Decimal to Octal

This decimal to hexadecimal converter turns base 10 numbers into base 16 values. It shows the result instantly.

Simple, Quick, and Reliable

Manual conversion takes time. This tool does the math for you. Enter a number then press Convert to see the hexadecimal value. Press Enter if you prefer keys.

How to Use This Tool

Type your decimal value into the field. Press Convert or press Enter. The hexadecimal result appears below the input. Read it at a glance.

Why Use Our Converter?

It saves time and cuts errors. Students check work and learn base 16 with it. Programmers map identifiers and memory values with it. Designers build color codes from red green blue values. Anyone can compare values across number systems with less fuss.

Step 1: Enter the Number

This field is named Enter Decimal Number. Type a whole number in base 10. Use zero or a positive value. The field accepts digits only. If you type 12.5, the tool keeps 12. If the field is empty, the tool asks for a number.

Step 2: Click Convert or Press Enter

Click Convert to run the conversion. You can press Enter instead. The result line shows hexadecimal with a 0x prefix. Letters A through F appear in uppercase. The next line shows two other formats. One shows the same hex string with no prefix. One shows the same string with a # for color work. Clear the field to clear the result.

Your Go To Decimal to Hexadecimal Converter

Here are quick examples. 10 becomes 0xA. 15 becomes 0xF. 16 becomes 0x10. 255 becomes 0xFF. 256 becomes 0x100. Pure white as red green blue uses 255 for each channel. That color appears as #FFFFFF.

Use whole numbers only. Fractions drop to the whole part. Very large values above 9007199254740991 may lose precision. This tool handles zero and positive values. The output uses uppercase letters. Press Enter for a fast workflow. Try a number and see the hex form.