Decimal to Hex
Related Conversion Tool: Hexa to Decimal Converter
Convert Decimal (Base-10) to Hexadecimal (Base-16) Instantly
The Decimal to Hexadecimal Converter is a free online tool that transforms any base-10 number into its equivalent base-16 format. Whether you’re working on low-level programming, digital electronics, or color code design, this tool offers a fast and accurate way to convert decimal numbers to hexadecimal values in real time.
What Is a Decimal Number?
A decimal number is part of the base-10 number system, the standard system used in everyday counting and arithmetic. It uses digits 0 through 9, where each digit represents a power of 10.
Example:
The number 245 in decimal means:2×10² + 4×10¹ + 5×10⁰
What Is a Hexadecimal Number?
Hexadecimal, or base-16, is a positional numeral system that uses 16 symbols:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
Here, A through F represent decimal values from 10 to 15. Hexadecimal numbers are commonly used in computer memory addressing, color representation (e.g., #FF0000), and digital logic.
Decimal to Hexadecimal Formula
To convert a decimal number to hexadecimal manually:
Divide the decimal number by 16 repeatedly and record the remainders.
Then, write the remainders in reverse order.
Mathematical Formula:
Decimal ÷ 16 = Quotient … Remainder
Repeat until Quotient = 0
Hexadecimal = Reversed Remainders
Decimal to Hexadecimal Example
Convert 255 to hexadecimal:
255 ÷ 16 = 15 remainder 15
15 ÷ 16 = 0 remainder 15
Hex = FF
So, the decimal number 255 is FF in hexadecimal.
Try 17 in Hexadecimal
Curious about smaller conversions?
The decimal number 17 converts to 11 in hexadecimal.
Use this tool to quickly convert values like 100, 255, 1024, or even large numbers like 524288.
How to Convert Decimal to Hex?
You can use the below shared infographic to learn decimal to hex conversion:
Decimal to Hex Table (0–255)
| Decimal | Hex |
|---|---|
| 0 | 0 |
| 10 | A |
| 15 | F |
| 16 | 10 |
| 31 | 1F |
| 255 | FF |
Users can see this table in the decimal to hex image.
📘 Explore More: Binary to Hexadecimal Converter
Applications of Decimal to Hex Conversion
- ✅ Web Development: Convert decimal RGB values to hex codes (e.g., 255 becomes FF)
- ✅ Embedded Systems: Hex values are used for memory mapping and register access
- ✅ Computer Science Education: Learning number systems like decimal, binary, and hexadecimal is foundational
Want to convert in code? Learn how to use the Decimal to Hex in Python with simple one-line functions using hex().
For more tools and explanations, visit our Hexadecimal Calculator platform — your complete resource for base conversions.
Decimal to Hexadecimal Online Tool – Features
- Fast, browser-based conversion
- Supports both small and large integers
- Clean UI and mobile-friendly layout
- Auto-copy feature for quick use
No need for a calculator or programming—just enter your number and get the hex value instantly!
Frequently Asked Questions
What is the difference between decimal and hexadecimal?
Decimal uses base-10 (digits 0–9), while hexadecimal uses base-16 (digits 0–9 and A–F).
Can I convert negative numbers?
Yes, negative decimals can be converted to hexadecimal using two’s complement representation. Check out our Hex to Signed Integer Converter for that.
Is this tool accurate for large numbers?
Absolutely. You can convert large decimals like 1048576 and beyond with 100% accuracy