Hex to Decimal Converter

Convert hexadecimal numbers to decimal. Supports 0x and # prefixes, batch conver...

SecureFastFree

Updated

Decimal Result
255
Binary
11111111
Octal
377
Step-by-Step Calculation
F × 16^1 = 15 × 16 = 240
F × 16^0 = 15 × 1 = 15
Total = 255

Common Values

Hex to Decimal Reference

0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
A
10
B
11
C
12
D
13
E
14
F
15
SSL Secured
256-bit Encryption
Cloud Processing
Mobile Friendly

Converter Features

Step-by-Step Calculation - Positional breakdown of the conversion
Batch Mode - Convert multiple values at once
Multi-Base Display - See decimal, binary, and octal results
Prefix Support - Handles 0x and # prefixes automatically
Reference Table - 0-F hex to decimal reference chart
One-Click Copy - Copy any result to clipboard instantly

Why Use Hex to Decimal Converter?

Step-by-Step Breakdown

See the positional calculation showing exactly how each hex digit contributes to the decimal result.

Batch Conversion

Convert multiple hex values at once with comma-separated or newline-separated input.

Flexible Input

Accepts hex values with or without 0x prefix or # prefix - all formats work automatically.

100% Private

All calculations happen in your browser. No data is sent to any server.

Multi-Base Output

See the result in decimal, binary, and octal simultaneously.

Instant Results

Real-time conversion as you type with zero processing delay.

Common Uses for Hex to Decimal

Color Code Conversion

Convert hex color values (FF, A5, etc.) to their decimal RGB equivalents.

Memory Address Analysis

Convert memory addresses from hex to decimal for debugging and analysis.

Network Configuration

Convert hex values in MAC addresses and network configurations.

Computer Science Education

Learn number base conversion with step-by-step calculation breakdowns.

How It Works

1

Choose Mode

Select 'Single Value' for one conversion or 'Batch Convert' for multiple hex values at once.

2

Enter Hexadecimal

Type your hex value (e.g., FF, 0xFF, or #FF). Prefixes are handled automatically.

3

View Results

See the decimal result along with binary and octal equivalents, plus a step-by-step calculation breakdown.

Tips & Information

Common Values

FF = 255 (max byte), FFFF = 65535 (16-bit max), FFFFFF = 16777215 (24-bit RGB max).

Quick Examples

Click the common value buttons below the converter to quickly load and convert popular hex values.

Case Insensitive

Hex input is case-insensitive - 'ff', 'FF', and 'Ff' all produce the same decimal result (255).

Frequently Asked Questions

Hexadecimal (hex) is a base-16 number system using digits 0-9 and letters A-F. It's commonly used in computing to represent binary data more compactly. Each hex digit represents 4 binary bits.
Multiply each hex digit by 16 raised to its position (starting from 0 on the right). For example, FF = F×16¹ + F×16⁰ = 15×16 + 15×1 = 240 + 15 = 255.
No, prefixes are optional. You can enter 'FF', '0xFF', or '#FF' - they all work the same. The tool automatically strips common prefixes.
JavaScript safely handles integers up to 2^53 - 1 (9007199254740991). For larger numbers, consider using BigInt or specialized libraries.
Hex provides a compact representation of binary data - each hex digit maps to exactly 4 bits. This makes it ideal for memory addresses, color codes, and binary data inspection.
In batch mode, enter multiple hex values separated by commas, spaces, or newlines. Each value is converted independently and all results are displayed together.

Related Tools

Decimal to Hex

Convert decimal numbers to hexadecimal

Number Base Converter

Convert between all number bases

Hex to Text

Convert hex to readable text

Text to Binary

Convert text to binary code