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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 ROUNDDOWN function.
Description
Rounds a number down, toward zero.
Syntax
ROUNDDOWN(number, num_digits)
The ROUNDDOWN function syntax has the following arguments:
- number - Required. Any real number that you want rounded down.
- num_digits - Required. The number of digits to which you want to round number.
Remarks
- ROUNDDOWN behaves like the ROUND function, except that it always rounds a number down.
- If num_digits is greater than 0 (zero), then number is rounded down to the specified number of decimal places.
- If num_digits is 0, then number is rounded down to the nearest integer.
- If num_digits is less than 0, then number is rounded down to the left of the decimal point.
Example
| Formula | Description | Result |
| =ROUNDDOWN(3.2, 0) | Rounds 3.2 down to zero decimal places. | 3 |
| =ROUNDDOWN(76.9, 0) | Rounds 76.9 down to zero decimal places. | 76 |
| =ROUNDDOWN(3.14159, 3) | Rounds 3.14159 down to three decimal places. | 3.141 |
| =ROUNDDOWN(-3.14159, 1) | Rounds -3.14159 down to one decimal place. | -3.1 |
| =ROUNDDOWN(31415.92654, -2) | Rounds 31415.92654 down to 2 decimal places to the left of the decimal point. | 31400 |
Errors
For a full list of formula errors, please read Formula errors.