How to use the Excel FLOOR function

Summary

The Excel FLOOR function rounds a given number down to the nearest specified multiple. FLOOR works like the MROUND function, but FLOOR always rounds down.

Purpose

Round a number down to the nearest specified multiple

Return value

A rounded number.

Syntax

=FLOOR (number, multiple)

Arguments

number - The number that should be rounded.
multiple - The multiple to use when rounding.

Usage notes

FLOOR works like the MROUND function, but FLOOR always rounds down.
With a positive number, the value is rounded down toward zero.
With a negative number, the value is rounded down away from zero.
The FLOOR function can be a good way to can be a good way to set pricing after currency conversion, discounts, etc.

Related functions

Excel MROUND Function

The Excel MROUND function returns a number rounded to a given multiple. MROUND always rounds up, away from zero.

Excel CEILING Function

The Excel CELING function returns a given number rounded up to a specified multiple. For example, =CEILING(A1,5) could be used to round a price in A1 to the nearest 5 dollars. CEILING always rounds up, away from zero.

Excel ROUND Function

The Excel ROUND function returns a number rounded to a given number of digits. The ROUND function can round to the right or left of the decimal point.

Excel ROUNDDOWN Function

The Excel ROUNDDOWN function returns a number rounded down to a given number of decimal places. Unlike standard rounding, where only numbers less than 5 are rounded down, ROUNDDOWN rounds all numbers 1-9 up.

Excel ROUNDUP Function

The Excel ROUNDUP function returns a number rounded up to a given number of decimal places. Unlike standard rounding, where numbers less than 5 are rounded down, ROUNDUP always rounds numbers 1-9 up.

Excel FLOOR Function

The Excel FLOOR function rounds a given number down to the nearest specified multiple. FLOOR works like the MROUND function, but FLOOR always rounds down.

Excel EVEN Function

The Excel EVEN function returns the next even integer after rounding a given number up. The EVEN function always rounds numbers up (away from zero) so positive numbers become larger and negative numbers become smaller (i.e. more negative).

Excel ODD Function

The Excel ODD function returns the next odd integer after rounding a given number up. The ODD function always rounds numbers up (away from zero) so positive numbers become larger and negative numbers become smaller (i.e. more negative).

Excel INT Function

The Excel INT function returns the integer part of a decimal number by rounding down to the integer. Note the INT function rounds down, so negative numbers become more negative. For example, while INT(10.8) returns 10, INT(-10.8) returns -11.

Excel TRUNC Function

The Excel TRUNC function returns a truncated number based on a given number of digits. For example, TRUNC(4.9) will return 4, and TRUNC(-3.5) will return -3. The TRUNC function does no rounding, it simply truncates as specified.

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Excel FLOOR Function

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Excel FLOOR Function

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