decimalbinary
Decimal to Binary Converter
Convert decimal numbers to binary instantly, with the working shown.
To convert decimal to binary, enter your value above and the result appears as you type. 255 in decimal is 11111111 in binary. Conversion uses arbitrary-precision integers, so very large values do not lose their low digits the way floating-point arithmetic would.
Runs in your browserAbout converting DECIMAL to BINARY
Decimal is base 10 — the everyday notation, and the one every other base is usually being translated back into. Binary is base 2 — each digit is one bit, so eight digits make a byte. As a worked example, 255 equals 255 in decimal and therefore 11111111 in binary.
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