Google Sheets Function: ROUND
The ROUND function rounds a value based on the defined number of decimal places.
Usage:
=ROUND(number)
or
=ROUND(number, places)
Example of use
To round a number to 0 decimal places and get an integer, enter:
=ROUND(A2)

This formula is equivalent to:
=ROUND(A2,0)
To round a number to 2 decimal places, enter 2 as the second argument:
=ROUND(A2,2)
