# FLOOR

The FLOOR formula rounds a given number down to the nearest multiple of a specified factor. It is commonly used when dealing with financial data or when working with time values. The function takes a value and an optional factor as arguments and returns the rounded down value.

## Usage

Use the `FLOOR` formula with the syntax shown below, it has 1 required parameter and 1 optional parameter:

Parameters:
1. value (required):
The number or reference to the cell containing the number to be rounded down.
2. factor (optional):
Optional parameter that specifies the multiple to which to round the value down. If omitted, the function rounds to the nearest integer.

## Examples

Here are a few example use cases that explain how to use the `FLOOR` formula in Google Sheets.

### Rounding down to nearest integer

The FLOOR formula can be used to round a number down to the nearest integer. This is useful when working with data that requires whole numbers, such as counting or indexing.

### Rounding down to nearest multiple of a factor

By providing a factor to the FLOOR formula, a number can be rounded down to the nearest multiple of that factor. This is often used when working with financial data, where amounts are denominated in specific increments.

### Rounding down to nearest hour

The FLOOR formula can be used to round down a time value to the nearest hour. This is helpful when working with time-based data and needing to aggregate data by hour.

## Common Mistakes

`FLOOR` not working? Here are some common mistakes people make when using the `FLOOR` Google Sheets Formula:

### Not providing a value to the function

If you forget to provide a value argument to the FLOOR function, it will return an error. Make sure to provide a value to the function.

### Providing a non-numeric value to the function

The FLOOR function only works with numeric values, so if you provide a non-numeric value, it will return an error. Make sure to provide a numeric value to the function.

### Providing a factor that is not a positive integer

The factor argument in the FLOOR function must be a positive integer. If you provide a non-positive integer, it will return an error. Make sure to provide a positive integer as the factor argument.

### Misunderstanding how the factor argument works

The factor argument in the FLOOR function is optional and is used to round the value down to the nearest multiple of the factor. If you provide a factor argument that is larger than the value or that does not evenly divide the value, it will round down to 0. Make sure to understand how the factor argument works before using it.

### Forgetting to use the FLOOR function when rounding down

If you want to round a value down to the nearest integer or to the nearest multiple of a factor, make sure to use the FLOOR function. If you use a different function or method, you may get unexpected results.

The following functions are similar to `FLOOR` or are often used with it in a formula:

• `CEILING`

The `CEILING` function returns a number rounded up to the nearest multiple of a specified factor. It is commonly used to round up prices to the nearest dollar or to adjust numbers to fit into specific increments.

• `ROUND`

The `ROUND` formula rounds a number to a specified number of decimal places. It is commonly used to simplify large numbers or to make a number more readable. The formula can round both positive and negative numbers. If the `places` parameter is not specified, the formula rounds to the nearest integer.

• `MROUND`

The `MROUND` function rounds a number to the nearest multiple of a specified factor. It is commonly used when dealing with financial data, such as currency or interest rate calculations.

• `INT`

The `INT` formula rounds a given value down to the nearest integer. This formula is often used to simplify large numbers or to convert decimal values to integers. The formula takes a single parameter, the value to be rounded down. If the value is already an integer, the formula will return the same value. If the value is a decimal, the formula will round down to the nearest integer.

You can learn more about the `FLOOR` Google Sheets function on Google Support.