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Convert numbers between binary, octal, decimal, and hexadecimal instantly
Valid characters for base 10: 0-9
Bit Visualization
8 bits · 1 byte
Quick values
Discover the powerful capabilities of our number base converter.
See binary, octal, decimal, and hexadecimal simultaneously — no need to convert twice.
Visual bit grid shows each binary bit highlighted in color for numbers up to 32 bits.
Type directly in any base — switch the active base and the input validates in real-time.
Copy binary, octal, decimal, or hex result with prefix (0b, 0o, 0x) in one click.
Follow these steps to get started
Click a base button (Base 2, 8, 10, or 16) to set which base you'll type in.
Type the number. Only valid characters for that base are accepted.
All four base representations update instantly. Click any card to switch input to that base.
Click the copy icon on any card to copy the value with its prefix (0b, 0o, 0x).
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