How to use the INT function
The INT function removes the decimal part from positive numbers and returns the whole number (integer) except negative values are rounded down to the nearest integer.
Table of Contents
- INT function Syntax
- INT function Arguments
- INT function example
- INT function alternative
- Convert boolean values to their numerical equivalents
- Split string and remove decimals
- INT function and IF function
- Split date from a date and time value
- Split time from a date and time value
- Extract the hour from a time value
- Extract the minute from a time value
- Get Excel *.xlsx file
1. INT Function Syntax
INT(number)
2. INT Function Arguments
| number | Required. The number you want to convert to an integer. |
Boolean values are converted into their equivalent integer. TRUE is 1 and FALSE is 0, see section 5 below for more.
3. INT Function Example
The image above shows how the INT function handles decimal numbers, cell B3 contains 1.9 and the INT function removes the decimal part. However, this is not the case when a negative number is used. Example, -6.1 is rounded down to -7, see cell C10.
Formula in cell C3:
4. INT Function alternative
Formula in cell C3:
=B3-MOD(B3,1)
4.1 Explaining formula
Step 1 - Calculate remainder
The MOD function returns the remainder after a number is divided by a divisor.
MOD(number, divisor)
MOD(B3,1)
becomes
MOD(1.9, 1)
and returns 0.9
Step 2 - Subtract the number
The minus sign lets you subtract numbers in an Excel formula.
B3-MOD(B3,1)
becomes
1.9 -0.9 equals 1.
5. INT function - convert boolean values to their numerical equivalents
The INT function converts a boolean value to its corresponding number.
TRUE - 1
FALSE - 0 (zero)
Formula in cell C3:
=INT(B3)
This can be used in the MMULT function or SUMPRODUCT function to convert boolean values to numerical equivalents. These functions require numerical values to work, there are more ways to convert boolean values:
TRUE + 0 equals 1.
FALSE + 0 equals 0 (zero).
TRUE * 1 equals 1.
FALSE * 1 equals 0 (zero).
6. INT function - split string and remove decimals
Formula in cell D3:
=INT(TEXTSPLIT(B3,,","))
Explaining formula
Step 1 - Split values into an array
The TEXTSPLIT function lets you split a string into an array across columns and rows based on delimiting characters.
TEXTSPLIT(Input_Text, col_delimiter, [row_delimiter], [Ignore_Empty])
TEXTSPLIT(B3,,",")
becomes
TEXTSPLIT("1.2, -4.1, 9.9, -10.9",,",")
and returns
{"1.2";" -4.1";" 9.9";" -10.9"}.
Step 2 - Remove decimals
Note that the INT function also converts the text values to numbers automatically.
INT(TEXTSPLIT(B3,,","))
becomes
INT({"1.2"; " -4.1"; " 9.9"; " -10.9"})
and returns {1; -5; 9; -11}. The double quotes are gone indicating they are now numbers and not text.
7. INT function and IF function
This formula checks if the value on the same row in column B is a text value and returns "Text" if so.
Formula in cell C3:
=IF(ISTEXT(B3),"Text", INT(B3))
7.1 Explaining formula
Step 1 - Check if the value is a text value
The ISTEXT function returns TRUE if the value is a text value.
ISTEXT(value)
ISTEXT(B3)
becomes
ISTEXT(1.9)
and returns FALSE. 1.9 is not a text value.
Step 2 - Evaluate IF function
The IF function returns one value if the logical test is TRUE and another value if the logical test is FALSE.
IF(logical_test, [value_if_true], [value_if_false])
IF(ISTEXT(B3),"Text", INT(B3))
becomes
IF(FALSE,"Text", INT(B3))
Step 3 - Evaluate the INT function
INT(B3)
becomes
INT(1.9)
and returns 1.
8. Split date from a date and time value
The INT function removes the decimals from a number, an Excel date and time value has two parts. The integer is the date and the decimal is the time.
Remove the decimal and the date is left, remove the integer and the time is left.
Formula in cell D3:
=INT(B3)
INT(45788.57292)
returns 45788.
9. Split time from a date and time value
This example shows how to extract time from an Excel date and time value.
Formula in cell D3:
=B3-INT(B3)
Explaining formula
Step 1 - Remove decimals
INT(45788.572916667)
returns 45788.
Step 2 - Calculate decimals
B3-INT(B3)
becomes
45788.572916667 - 45788
and returns 0.572916667
10. Extract the hour from a time value
The HOUR function lets you calculate the hour value based on an Excel date (and time value), however, you can perform the same calculation using the INT function.
Formula in cell D3:
=INT(B3*24)
Explaining formula
Step 1 - Calculate hours
B3*24
becomes
0.572916666664241*24
and returns
13.7499999999418
Step 2 - Remove decimals
INT(B3*24)
becomes
INT(13.7499999999418)
and returns 13.
11. Extract the minute from a time value
Formula in cell D3:
=INT(B3*1440)
Explaining formula
24 hours contain 1440 minutes. 24*60 = 1440.
Step 1 - Calculate minutes and decimal
B3*1440
Step 2 - Remove decimal value
INT(B3*1440)
Useful links
INT function - Microsoft
INT Function in Excel
'INT' function examples
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Functions in 'Math and trigonometry' category
The INT function function is one of many functions in the 'Math and trigonometry' category.
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