Universal Number Base Converter
Convert any number between Binary (base-2), Octal (base-8), Decimal (base-10), and Hexadecimal (base-16) simultaneously.
Tool Key Features
Instant Conversion
Sub-millisecond base-2 to base-10 calculation.
Accurate Results
Guaranteed 100% mathematical precision.
Unlimited Usage
Convert as many values as you need for free.
Mobile Friendly
Fully responsive UI on phone, tablet, & desktop.
Copy Result
One-click copy output to clipboard.
Secure Processing
All processing happens locally in your browser.
Free Forever
No paywalls, subscription fees, or hidden costs.
No Registration
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What is Universal Number Base Converter?
Universal Base Converter translates numbers across all fundamental computing bases at once.
How to Use the Universal Number Base Converter
- Enter any integer number.
- View conversions across all bases instantly.
Live Conversion Examples
How the Conversion Works
Binary conversion relies on positional values of powers of 2. Each bit position starting from the right (index 0) has a weight of 2^n:
Conversion Formula
Binary to Decimal Conversion Table (0–32)
| Decimal | Binary (8-bit) | Hexadecimal |
|---|---|---|
| 0 | 00000000 | 0x00 |
| 1 | 00000001 | 0x01 |
| 2 | 00000010 | 0x02 |
| 3 | 00000011 | 0x03 |
| 4 | 00000100 | 0x04 |
| 5 | 00000101 | 0x05 |
| 6 | 00000110 | 0x06 |
| 7 | 00000111 | 0x07 |
| 8 | 00001000 | 0x08 |
| 9 | 00001001 | 0x09 |
| 10 | 00001010 | 0x0A |
| 11 | 00001011 | 0x0B |
| 12 | 00001100 | 0x0C |
| 13 | 00001101 | 0x0D |
| 14 | 00001110 | 0x0E |
| 15 | 00001111 | 0x0F |
| 16 | 00010000 | 0x10 |
| 17 | 00010001 | 0x11 |
| 18 | 00010010 | 0x12 |
| 19 | 00010011 | 0x13 |
| 20 | 00010100 | 0x14 |
| 21 | 00010101 | 0x15 |
| 22 | 00010110 | 0x16 |
| 23 | 00010111 | 0x17 |
| 24 | 00011000 | 0x18 |
| 25 | 00011001 | 0x19 |
| 26 | 00011010 | 0x1A |
| 27 | 00011011 | 0x1B |
| 28 | 00011100 | 0x1C |
| 29 | 00011101 | 0x1D |
| 30 | 00011110 | 0x1E |
| 31 | 00011111 | 0x1F |
| 32 | 00100000 | 0x20 |
Frequently Asked Questions
What are the 4 main number bases in computing?
Binary (2), Octal (8), Decimal (10), and Hexadecimal (16).