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Excel LET function (365)

Author: Sun Last Modified: 2022-07-08

doc dec2oct 1


The Excel LET function assigns names to calculation results. It allows storing calculations, values, defined names inside the formula. 

Syntax and arguments

Formula syntax

LET(name1,name1_value,[name2/name2_value], ...,calculation)


  • Name1: Required, the variable name you assigned in the formula.
  • Name1_value: Required, the value of the variable (name1). The LET function defines at least one value pair (one name and one name_value), and itsupports up to 126.
  • Name2/name2_value: Optional, the second, third,… pairs of names and value of names.
  • Calculation: Required, the calculation you want to apply for the variables.

Return Value

The LET function returns the result of the calculation.


Excel 365 and Excel 2021.

Usage and Examples

Example1 one name and one name_value

Supposing, we define a name as x, and the value of x is 1, the calculation is x+1, now use them in the formula as this:


Press Enter key.
doc dec2oct 1
doc dec2oct 1

Example2 two pairs of names and name_values

Supposing, we define the first name as x, and the value of x is 1, the second name as y, and the value of y is 2, the calculation is x+1-y+10, now use them in the formula as this:


Press Enter key.
doc dec2oct 1
doc dec2oct 1

Other Functions:

  • Excel ISODD Function
    The ISODD function checks whether a value is an odd number. If the given value is an odd number, it returns TRUE. Otherwise, it returns FALSE.

  • Excel ISEER Function
    The ISERR function returns TRUE for any error type (except #N/A) and FALSE otherwise.

  • Excel ISEVEN Function
    The Excel ISEVEN function tests if a supplied number (or numeric expression) is even, if so, it returns TRUE, otherwise, it returns FALSE.

  • Excel ISREF Function
    The ISREF function checks whether a given value is a reference. If the given value is a reference, it returns TRUE. Otherwise, it returns FALSE.


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