# ISO.CEILING

The `ISO.CEILING` function rounds a number up to the nearest integer or to the nearest multiple of a specified significance, whichever is greater. This function is often used in financial calculations where values must be rounded up to adhere to specific regulations or standards.

## Usage

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

Parameters:
1. number (required):
The value to be rounded up.
2. significance (optional):
The multiple to which to round up. If omitted, the number is rounded up to the nearest integer.

## Examples

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

### Rounding up to the nearest multiple

Use `ISO.CEILING` to round a number up to the nearest multiple of a specified value. For example, if you need to round up to the nearest 10, use `ISO.CEILING(A1, 10)`.

### Rounding up for financial calculations

Use `ISO.CEILING` to round values up to meet financial regulations or standards. For example, some tax laws require certain values to be rounded up to the nearest dollar.

### Calculating project timelines

Use `ISO.CEILING` to round up time values to the nearest hour or day. This can be useful when calculating project timelines or billing hours.

## Common Mistakes

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

### Incorrect number of arguments

Users may forget to provide one or both of the required arguments for the ISO.CEILING formula. Ensure that both the number and significance arguments are included in the formula.

### Invalid input type

The number and significance arguments must be numerical values. Ensure that the input types are correct and there are no additional characters or spaces in the formula.

### Incorrect use of decimal places

The significance argument must be a positive integer. Users may accidentally include decimal places or negative values in the significance argument, which will produce an error. Ensure that the significance argument is a positive integer.

### Incorrect rounding

The ISO.CEILING formula rounds up to the nearest multiple of the significance argument. If the number is already a multiple of the significance argument, it will not be rounded up. Ensure that the rounding is correct and matches the desired output.

### Misunderstanding of ISO standard

The ISO standard for rounding up to a multiple involves rounding up to the next highest multiple, even if the number is already a multiple. Ensure that the user understands this standard and uses it correctly in their formula.

The following functions are similar to `ISO.CEILING` 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.

• `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.

• `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.

• `ROUNDUP`

The `ROUNDUP` formula rounds a number up to a specified number of decimal places. It is commonly used to simplify the display of numbers or to perform calculations that require a certain level of accuracy.

• `ROUNDDOWN`

The `ROUNDDOWN` formula rounds a number down to a specified number of decimal places. It is commonly used in financial calculations, such as calculating the total cost of a purchase including tax. The formula takes a required `value` parameter and an optional `places` parameter specifying the number of decimal places to round to.

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