Tip: You can type 3/8, 0.375, or 37.5% — the tool detects it automatically.
Tip: You can type 3/8, 0.375, or 37.5% — the tool detects it automatically.
• Supports negative numbers. Hex can be typed with or without 0x.
• Valid range for Arabic → Roman is 1–3999. Roman input is case-insensitive.
A Number Converter is a free online tool that helps you instantly convert numbers from one format to another. Whether you need to change a fraction into a decimal, a percent into a fraction, or even binary code into decimal or hex, this converter makes it quick and error-free.
Instead of calculating by hand, you simply enter your number, choose the format you want, and the tool shows the converted value in seconds.
This makes the tool useful for both mathematics and computer science.
Q1. What is the difference between decimal and fraction?
A decimal uses a dot to show parts of a whole (0.25), while a fraction shows the same value as a ratio of two numbers (¼).
Q2. How do I convert a percent into a fraction?
Divide the percent by 100 and reduce the fraction. Example: 40% → 40/100 → 2/5.
Q3. Can I convert binary numbers with this tool?
Yes, you can convert binary to decimal, octal, or hex instantly.
Q4. Is this converter useful for programming?
Absolutely! Programmers often need to switch between decimal, binary, octal, and hexadecimal for coding, debugging, and networking.
Q5. Does it support Roman numerals?
Yes. You can convert Roman numerals like “XLII” into 42 or convert normal numbers back into Roman numerals.
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