Octal to Decimal Converter - Free Online Octal Calculator
Free online octal to decimal converter and calculator. Convert octal to decimal, decimal to octal, with hex and binary output. Reference table included. No signup required.
| Octal | Decimal | Binary |
|---|---|---|
| 0 | 0 | 0 |
| 7 | 7 | 111 |
| 10 | 8 | 1000 |
| 17 | 15 | 1111 |
| 77 | 63 | 111111 |
| 100 | 64 | 1000000 |
| 177 | 127 | 1111111 |
| 377 | 255 | 11111111 |
| 777 | 511 | 111111111 |
| 1000 | 512 | 1000000000 |
| 7777 | 4095 | 111111111111 |
| 177777 | 65535 | 1111111111111111 |
Octal to Decimal Converter Online
This octal to decimal converter tool allows you to easily convert between octal (base-8) and decimal (base-10) number systems. Enter an octal value to see its decimal, hexadecimal, and binary equivalents instantly. The tool supports bidirectional conversion and includes a reference table of common octal values. Useful for Unix file permissions, programming, and computer science. All processing happens in your browser — your data never leaves your device.
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☕Buy Me a CoffeeHow to Use Octal Decimal Converter
- Paste or upload your input data into the Octal Decimal Converter input area
- Select the desired output format or conversion options
- Click Convert to transform your data instantly
- Copy the converted result or download the output file
Common Use Cases
- Converting color codes between hex and RGB formats
- Debugging hexadecimal data in network protocols
- Converting hex values for embedded systems programming
- Working with hex color values in CSS and design tools