BIN2DEC Google Sheet Formula

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BIN2DEC Formula Syntax

=BIN2DEC("1010")

Example Use Case

Converting a binary number to decimal format

Understanding the BIN2DEC Formula

The BIN2DEC function in Excel converts a binary (base-2) number to a decimal (base-10) number. It's a number conversion tool for numeric transformations—like working with binary data or performing calculations across different number systems.

BIN2DEC("1010") returns 10, converting the binary representation "1010" to its decimal equivalent. It takes a binary number (as text, up to 10 characters) and performs the conversion—handling both positive and negative binary numbers through two's complement notation.

Why Use BIN2DEC?

BIN2DEC bridges numbering systems—think digital electronics or computer science applications. Its ability to handle signed binary numbers (using the leftmost bit as the sign bit) makes it valuable for technical calculations, programming applications, or educational purposes explaining number system conversions.

Example with Sample Data

Binary	Formula	Result
"1010"	=BIN2DEC("1010")	10
"1111"	=BIN2DEC("1111")	15
"1000000000"	=BIN2DEC("1000000000")	-512
"0111111111"	=BIN2DEC("0111111111")	511

BIN2DEC handles binary to decimal conversion: "1010" becomes 10, "1111" becomes 15. For 10-bit binary numbers, it recognizes two's complement notation, so "1000000000" becomes -512 (the leftmost bit indicates a negative number). The function can handle binary numbers up to 10 bits long, representing decimal values from -512 to 511. It's a binary converter.