DEC2BIN function

Category: Engineering
Introduced: Excel 2003

Summary

Converts a decimal number to binary

Syntax

DEC2BIN(number, [places]) The DEC2BIN function syntax has the following arguments:
• Number Required. The decimal integer you want to convert. If number is negative, valid place values are ignored and DEC2BIN returns a 10-character (10-bit) binary number in which the most significant bit is the sign bit. The remaining 9 bits are magnitude bits. Negative numbers are represented using two's-complement notation.
• Places Optional. The number of characters to use. If places is omitted, DEC2BIN uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).

Example

=DEC2BIN(9, 4)
=DEC2BIN(-100)

Microsoft Support Page

https://support.microsoft.com/en-us/office/dec2bin-function-0f63dd0e-5d1a-42d8-b511-5bf5c6d43838

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