How to Use the Hex Calculator
Hexadecimal is everywhere in computing from color codes to memory addresses. This converter makes it easy to switch between hex and decimal.
Step-by-Step Instructions
- 1 Enter a decimal number and click Convert to see its hex and binary equivalents.
- 2 Or enter a hexadecimal number (0-9, A-F) and click Convert.
- 3 View all three representations side by side.
Understanding the Inputs
Decimal
A decimal number using digits 0-9. Enter any non-negative whole number to convert to hexadecimal.
How to find it: Common examples include RGB color values (0-255 per channel) or memory addresses.
Why it matters: Decimal is what people use daily. Converting to hex helps bridge the gap between human-readable numbers and computer representations.
Type: number · Default: 0
Hexadecimal
A hexadecimal number using digits 0-9 and letters A-F. Input is case insensitive. For example, FF represents 255, and A0 represents 160.
How to find it: Hex values appear in CSS color codes (#FFFFFF), memory addresses (0xFF), and MAC addresses (00:1A:2B:3C:4D:5E).
Why it matters: Hex is more compact than binary (one hex digit = 4 bits) while being easier to read than long binary strings.
Type: string · Default:
Tips & Best Practices
- ✓ Hex color codes use two hex digits per color channel (Red, Green, Blue).
- ✓ The prefix 0x is often used in programming to indicate a hex value (e.g., 0xFF).
- ✓ One hex digit represents exactly 4 binary digits (a nibble).
by CalculatorPro Tools · Updated 2026-07-29