INT Function in Excel: Whole Number Part (Rounds Down)

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MathLevel: BeginnerAvailable in: Excel 2007+

In this article

1. Syntax
2. Examples
3. Example 1
4. Example 2
5. Example 3
6. INT in practice
7. Where you will use it
8. Worked example
9. Mistakes people make
10. Related functions
11. Continue learning

INT rounds a number down to the nearest integer. On dates with times, it strips the time.

Syntax

=INT(number)

Argument	What it means
number	Any number.

Examples

Example 1

=INT(8.9)

8.

Example 2

=INT(-8.9)

−9 (down, not towards zero — use TRUNC for −8).

Example 3

=INT(A2)

Date only from a date-time stamp.

INT in practice

Where you will use it

• Whole units from a quantity (cartons from items)
• Age in completed years from a decimal
• Split date-time into date (INT) and time

Worked example

Value	Formula	Result
7.9	=INT(A2)	7
-7.9	=INT(A3)	-8
46299.75	=INT(A4)	46299

Results calculated in Excel.

Mistakes people make

Mistake	What to do instead
Expecting INT(-7.9) to be -7	INT rounds down, so it's -8; use TRUNC to cut off decimals
Using INT for rounding money	Use ROUND

Related functions

TRUNC · ROUNDDOWN · MOD

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📎 Practice files for this article

• 📗
  Practice workbook: Math & rounding24 tasks on realistic sales data — type your formula, the Check column turns green when it is right. Answers sheet included.
  ⬇ XLSX · 35 KB

Free to use for learning. Files with macros (.bas) are plain text — import them with Alt+F11 → File → Import File, and always test on a copy.