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For a full list of available calculation functions, please read What calculation functions are supported.
This article describes the formula syntax and usage of the TRUNC function.
Description
Truncates a number to an integer by removing the fractional part of the number.
Syntax
TRUNC(number, [num_digits])
The TRUNC function syntax has the following arguments:
- number - Required. The number you want to truncate.
- num_digits - Optional. A number specifying the precision of the truncation. The default value for num_digits is 0 (zero).
Remark
- TRUNC and INT are similar in that both return integers. TRUNC removes the fractional part of the number. INT rounds numbers down to the nearest integer based on the value of the fractional part of the number. INT and TRUNC are different only when using negative numbers: TRUNC(-4.3) returns -4, but INT(-4.3) returns -5 because -5 is the lower number.
Example
| Formula | Description | Result |
| =TRUNC(8.9) | Truncates 8.9 to return the integer part (8). | 8 |
| =TRUNC(-8.9) | Truncates a negative number to return the integer part (-8). | -8 |
| =TRUNC(0.45) | Truncates a number between 0 and 1, returning the integer part (0). | 0 |
Errors
For a full list of formula errors, please read Formula errors.