Percentages, decimals, and fractions are three ways of expressing the same value, and converting between them by hand — especially reducing a fraction to its simplest form — is a common source of small errors. This tool keeps all three representations in sync automatically.
Change the percentage or decimal field and both the other fields update instantly, with the fraction automatically reduced to its lowest terms using the greatest common divisor.
This is useful for coursework, cooking measurements, or any everyday situation where you need to communicate the same value in a different format.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this conversion or calculation often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Because there's no sign-up or installation step, you can jump straight from search result to working tool in a couple of seconds.
This tool avoids unnecessary steps like account creation or email verification, since the underlying task itself is simple enough not to need them.
Many people discover a tool like this the first time they need it for a specific task, then come back to it regularly afterward once they know it exists.
The interface is intentionally simple, so there's no learning curve — the input goes in, the result comes out, and that's the whole interaction.
Frequently asked questions
How is the fraction simplified?
The tool finds the greatest common divisor between the numerator and denominator and divides both by it, producing the simplest equivalent fraction.
Can I enter repeating decimals?
You can enter as many decimal places as you like; the fraction conversion will approximate very long repeating decimals based on the digits entered.