Decimal to Octal
Convert decimal numbers into octal. Enter one or more decimal numbers separated by spaces and read the octal values.
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About Decimal to Octal
This tool rewrites everyday base 10 numbers in base 8. Octal still shows up in places like Unix file permissions, so a quick decimal to octal conversion is often handy.
Frequently Asked Questions
Where is octal used?
Octal appears in file permission modes and some legacy systems. Converting from decimal makes those values easy to read.
Is there a limit on the size of the number?
No practical limit. Conversions use big integer math, so even very large numbers convert exactly. Separate multiple numbers with spaces.
About Matt George
I'm Matt George, a software engineer in the startup space. I run my own shop building software for early-stage founders, and I love making free tools and experiences that people actually use. Enjoy using Decimal to Octal!