Binary
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Base Converter
Convert binary, decimal, and hexadecimal values in one place. Choose the source base, enter a value, and see all three results at once.
Decimal allows digits 0-9.
Decimal
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Hexadecimal
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Enter a value first.
Three good situations for this page
- Check binary, decimal, and hex values during basic coding practice.
- Compare the same number across the three common bases in one place.
- Use the example button when you just want to test the format quickly.
FAQ
Can I enter lowercase letters in hexadecimal?
Yes. Both a-f and A-F are recognized, and the output is normalized to uppercase.
Why is my input flagged as invalid?
Usually because the input does not match the selected base. Binary allows only 0 and 1, decimal allows 0-9, and hexadecimal allows 0-9 and A-F.
Does this page support negative numbers or decimals?
This version focuses on integer conversion, which fits most learning and beginner dev use cases. It can be extended later if needed.
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