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Excel DECIMAL function

doc decimal function 1


The DECIMAL function converts a text representation of a number in a base into its equivalent decimal number. Take a instance, 11 is a text representation of 3 in base 2, using the formula =DECIMAL(11,2) convert 11 into decimal number 3.

Syntax and arguments

Formula syntax



  • Text: Required. The text representation of the number that you want to convert to decimal number. The length of the text must be less than 256.
  • Radix: Required. The base of the supplied number, must be an integer ≥ 2 and ≤ 36.

Return Value

The DECIMAL function returns a decimal number.


1. The DECIMAL function is unavailable in the earlier versions of Excel 2013.

2. The Text argument is no case sensitive.

About Errors

  • #NUM! error value: Occurs if either one appears:
  • The Radix argument is < 2 or > 36
  • The Text argument and Radix argument are not a pair.
  • #VALUE! error value: Occurs if either one appears:
  • The Text argument is longer than 255 characters
  • The Radix argument is nonnumeric value.

Usage and Examples

Before using the DECIMAL function, you should read below table firstly, which list usually used text representation of numbers and the bases.

Base Alpha-Numeric Characters
Binary (2) 0,1
Octal (8) 0-7
Decimal (10) 0-10
Hexidecimal (16) 0-9 then A-F

Before using the DECIMAL function, you should read below table firstly, which list usually used text representation of numbers and the bases.

Formula Description Result
=DECIMAL(1111,2) Convert the binary (base 2) value 111 to the equivalent decimal (base 10) value 15
=DECIMAL("C2",16) Convert the hexadecimal (base 16) value C2 to its equivalent decimal (base 10) value 194
=DECIMAL(12,8) Convert the octal (base 8) value 12 to the equivalent decimal (base 10) value 10

Sample File
doc sample file

Relative Formulas

Relative Articles

  • Convert decimal to times
    This article introduce two different methods to convert decimal number to time format. Take instance, convert decimal hour 31.23 to time format 31:13:48.

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