HEX to Decimal

HEX to Decimal Converter Online

Our free HEX to Decimal Converter allows you to convert hexadecimal numbers (base 16) to decimal values (base 10) instantly and accurately. This tool is ideal for developers, programmers, students, and anyone working with low-level data formats, colors, or memory addresses.

What is a Hexadecimal (HEX) Number?

A hexadecimal number is a base-16 number system that uses 16 distinct symbols: 0–9 and A–F. It’s commonly used in computing and digital electronics because it maps nicely to binary (base 2) and is more compact.

Here is the breakdown:

• Decimal 0–9 = Hex 0–9
• Decimal 10–15 = Hex A–F

What is Decimal?

Decimal is the base-10 number system that we use in everyday life. It uses digits 0 through 9. When converting from hex to decimal, you're transforming from base-16 to base-10.

How to Convert HEX to Decimal

To convert a HEX number like FF0000 to decimal:

1. Break the hexadecimal number into digits: F, F, 0, 0, 0, 0
2. Use the base-16 position values: (16^5 to 16^0)
3. Apply the formula:
   (15 × 16⁵) + (15 × 16⁴) + (0 × 16³) + (0 × 16²) + (0 × 16¹) + (0 × 16⁰)
4. Result = 16711680

Example:

Input: FF0000
Output: 16711680

Common HEX to Decimal Conversions

Why Use Our HEX to Decimal Converter?

• Instant Conversion: Get accurate decimal output with a single click.
• Beginner-Friendly: No need to remember formulas or use programming languages.
• Useful in Development: Commonly used for memory addresses, MAC addresses, and HTML color codes.
• Supports Large Numbers: Convert long hexadecimal values with ease.

Applications of HEX to Decimal Conversion

This tool is commonly used in:

• Computer Science: To decode memory addresses, machine-level instructions.
• Web Development: For converting HTML/CSS color codes (e.g., FF0000).
• Programming: Useful in C, C++, Python, Java, and other languages when handling hex values.
• Networking: MAC and IPv6 addresses involve hexadecimal formats.
• Embedded Systems: Microcontroller values and ROM tables use hex formats extensively.

HEX to Decimal Formula

The formula to convert hexadecimal to decimal is:

Decimal = dₙ × 16ⁿ + dₙ₋₁ × 16ⁿ⁻¹ + ... + d₁ × 16¹ + d₀ × 16⁰

Where d represents each digit in the hexadecimal number and n is the position index from right to left (starting at 0).

HEX to Decimal Conversion in Programming

In Python:

int("FF", 16)  # Output: 255

In C:

int value = strtol("FF", NULL, 16);

In Java:

int value = Integer.parseInt("FF", 16);

HEX to Decimal Online Tool Features

• Easy and fast interface
• Auto-removes invalid characters
• Works with uppercase and lowercase input
• Responsive design – works on all devices
• No login or installation needed

Frequently Asked Questions (FAQs)

Q1: What is the HEX value of 255?

The hexadecimal equivalent of 255 is FF.

Q2: Can I convert color codes like #FF0000?

Yes, just remove the # and paste the value directly. The result will be the decimal equivalent.

Q3: Is this converter case-sensitive?

No. HEX values like ff and FF are treated the same.

Q4: Can I convert large HEX numbers?

Yes, this tool supports very large hexadecimal values.

Q5: Is this HEX to Decimal Converter free?

Yes, it's 100% free and accessible from any browser or device.