Hex to Decimal Converter
Convert any hexadecimal number to decimal (base-10), binary and octal — supports 0x prefix and shows the positional value method.
What Does This Tool Do?
Convert hexadecimal numbers to decimal, binary and octal. Shows each digit multiplied by its power of 16 so you can understand the positional method clearly.
Key Features
3 Outputs
Decimal, binary and octal from one hex input.
Positional Steps
Each hex digit × 16^n shown.
Live
Updates as you type.
0x Support
Strips 0x prefix automatically.
How to Use
- Enter a hex number (0–9, A–F). The 0x prefix is stripped automatically.
- Decimal, binary and octal appear instantly.
- Read the positional steps to understand the conversion.
Frequently Asked Questions
How do you convert hex to decimal?▾
Multiply each hex digit by 16 raised to its position (from right, starting at 0), then sum all values. E.g. FF = 15×16 + 15×1 = 240 + 15 = 255.
What does 0xFF mean?▾
0x is a prefix indicating hexadecimal notation in programming. 0xFF = decimal 255 = 11111111 in binary — the maximum value of one byte.
What are common hex values?▾
0x00 = 0, 0x0F = 15, 0x10 = 16, 0xFF = 255, 0x100 = 256, 0xFFFF = 65535. Hex is used for colour codes, memory addresses and binary data.
Complete Guide to Hex to Decimal Converter
When To Use This Tool
Use Hex to Decimal Converter whenever you need fast, accurate output without installing software. This tool is designed for speed, clarity, and repeatable results for day-to-day work.
Best Practices for Accurate Results
- Double-check the format of your input before running the tool.
- Test with a small sample first, then process larger data.
- Use Related Tools to verify, convert, or transform the output.
Why Users Prefer AdeDX
AdeDX tools are browser-based, free to use, and built to work across desktop and mobile devices. Most processing happens directly in your browser for fast performance and improved privacy.