ROUNDDOWN
The ROUNDDOWN function rounds a number down towards zero to a specified number of digits. It requires the number to round and the number of digits as arguments. This function is useful for truncating values without rounding up.
Syntax 🔗
=ROUNDDOWN(number, num_digits)
number | The number you want to round down. |
num_digits | The number of digits to which you want to round down the number. |
About ROUNDDOWN 🔗
Use the ROUNDDOWN function in Excel to truncate a number towards zero to a specified number of decimal places or digits. This function is useful when you need a simple numerical approximation without rounding up. It's helpful in financial calculations, data analysis, and mathematical operations where precision is important. By using ROUNDDOWN, you maintain the desired level of accuracy in your calculations according to your specific needs.
Examples 🔗
Let's say you have the number 15.6789 and you want to round it down to 2 decimal places. Use the ROUNDDOWN formula: =ROUNDDOWN(15.6789, 2), resulting in 15.67.
Suppose you have the number -8.456 and you want to round it down to the nearest integer. Use the ROUNDDOWN formula: =ROUNDDOWN(-8.456, 0), which gives you -9.
Notes 🔗
ROUNDDOWN always rounds towards zero, regardless of the sign of the number. If the num_digits argument is negative, the number is rounded to the left of the decimal point to the specified number of digits. Be cautious with negative values as they can lead to unexpected results.
Questions 🔗
The key difference between ROUNDDOWN and ROUND lies in the direction of rounding. ROUNDDOWN always rounds towards zero, truncating the decimal part, while ROUND follows standard rounding rules (rounds up with values >= 5). As such, ROUNDDOWN is more suitable when you specifically want to round down without any upward rounding.
Can I use ROUNDDOWN to round a negative number?Yes, ROUNDDOWN can be used to round both positive and negative numbers. It always rounds towards zero, irrespective of the sign of the number being rounded.
What happens if the num_digits argument in ROUNDDOWN is negative?If the num_digits argument provided to ROUNDDOWN is negative, the function will round the number to the left of the decimal point. It effectively truncates the number to the specified negative number of decimal places.