Decimal to Octal Converter
Free online decimal to octal converter, supports one-click conversion, simple and convenient to use.
Conversion Settings
Multiple values supported, one per line
How to Use
1. Enter decimal values in the input box, multiple values supported (one per line).
2. Click the "Convert to Octal" button, the system will automatically convert.
3. After conversion is complete, the result will be displayed in the result area below.
4. You can click the "Copy Result" button to copy all conversion results with one click.
5. For reverse conversion (octal to decimal), click the "Octal to Decimal" button at the top to switch modes.
Decimal and Octal Knowledge
What is Decimal?
Decimal is the most commonly used number system in our daily lives, using 0-9 ten digits, with a carry over at 10. Decimal is the most natural way of counting for humans, related to the number of our fingers (10).
What is Octal?
Octal is a number system with base 8, using 0-7 eight digits, with a carry over at 8. In computer science, octal is often used to simplify binary representation because 3 binary digits correspond exactly to 1 octal digit.
Decimal to Octal Conversion Method
Decimal to octal conversion usually uses the method of dividing by 8 and taking remainders: continuously divide the decimal number by 8, record the remainders each time, then arrange the remainders from bottom to top to get the octal number.
Octal to Decimal Conversion Method
Octal to decimal conversion uses the bit weight expansion method: multiply each digit of the octal number by the corresponding power of 8, then add the results to get the decimal number.
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