Excel cell numbering format

1. Select a cell or a cell range.

2. On the Home tab, select Number from the drop-down.
   
   Or, you can choose one of these options:

   • Press CTRL + 1 and select Number.

   • Right-click the cell or cell range, select Format Cells… , and select Number.

   • Select the small arrow, dialog box launcher, and then select Number.

3. Select the format you want.

You can apply different formats to numbers to change how they appear. The formats only change how the numbers are displayed and don’t affect the values. For example, if you want a number to show as currency, you’d click the cell with the number value > Currency.

Applying a number format only changes how the number is displayed and doesn’t affect cell values that’s used to perform calculations. You can see the actual value in the formula bar.

Here’s a list of available number formats and how you can use them in Excel for the web:

If you used Excel in any shape or form, there is a pretty good chance that you’ve used the formatting and number formatting features. Formatting options like number, currency, percentage, date and time values are easily accessible to users. However, that’s not all there is in the world of text and number formatting. Going down the rabbit hole, custom formatting can help you fully configure Excel’s built-in settings for formatting.

The main advantage of this approach is that you can alter the look of your data without changing the actual values. This means that you do not need to use additional spaces or formulas to create the layout you want and preserve the raw data.

If you want to modify your data anyways, or need to change a value inside a formula, you can use the TEXT function with all custom formatting syntax we are going to cover in this article. It should be noted that the TEXT function returns a text, and the return value cannot be used in mathematical calculations. If you do, you will receive a #VALUE! error. In this article we’re going to be using a workbook template. You can download it below.

How to create a custom number format in Excel

1. Select the cell to be formatted and press Ctrl+1 to open the Format Cells dialog. An alternative way to do is by right-clicking the cell and then going to Format Cells > Number Tab.
2. Under Category, select Custom.
3. Type in the format code into the Type
4. Click OK to save your changes.

Note: In Format Cells dialog you can modify the built-in format codes by selecting the format you want to modify in its own category (i.e. Currency > ($1,234.10)) and then selecting Custom Category. Don’t worry, Excel will not let you delete built-in formats.

Basics

Syntax

The format code has 4 sections separated by semicolons.

POSITIVE; NEGATIVE; ZERO; TEXT

These sections are optional,

• If a code contains only 1 section, the format is applied to all number types — positive, negative and zero.
• If a code contains 2 sections, the first section is used for positive and zero values, while the second section is applied to negative values.
• If a code contains 3 sections, the first is for positive, the second is for negative, and the third is for zero.
• A code only affects text values if all sections exist.

Default format type in Excel is called General. You can type General for sections you don’t want formatted. Make sure you use a minus sign (-) with General if you want to skip negative values.

If you want to completely hide a type, leave it blank after the semicolon. For example; to hide 0 values, General;-General;;General

Placeholders and the Cheat Sheet

Common Practices

Display and control of the first digit and decimals

Decimal places in the code are indicated with a period (.). Number of zeroes after the period (.) define the number of decimal places. For example,

• 0 — display 1 decimal place
• 00 — display 2 decimal places

If the number has more decimals than the decimal placeholders defined, the number will be rounded to the nearest number of placeholders.

Alternatively, hash (#) and question mark (?) symbols can be used as decimal places. However, because any missing decimal places will be filled with zeroes, using zeroes instead will be easier to read.

Add text to numbers

Custom text can be added to the beginning or the end of a value. Text and characters should be added inside quotes («») and backslashes (). You can use backslash () to add single character.

Quotation marks or backslashes are not necessary for spaces ( ) and some special characters.

Below are some special characters you can use by copying or typing in the numerical code while pressing down Alt button.

Hide value

If you leave any number of sections blank, the value of those sections will be hidden. A section should always be separated (defined) by a semicolon (;). Here are some examples,

Replace zeroes with dashes

Zeroes can make data tables look more complicated than they actually are. You can hide them completely by using the previous method, or replace them with any character of your choice. Dash (-) is a common example. All you need to is place a dash into the ‘Zero section’.

Start with zeroes

If try to enter a ZIP number that starts with 0, the leading zeroes will be removed automatically by Excel. To keep the leading zeros, use zero (0) placeholder for whole numbers.

Dealing with thousands, millions, and more

You may have noticed that ‘0.0’ or other simple formats do not separate thousands or millions. Adding a comma into the code will insert commas to separate numbers.

There must be placeholders for numbers smaller than one thousand, otherwise such values will be hidden. This behavior allows us to round and format our value to show only thousands or millions.

Display numbers as phone numbers

Phone numbers can be hard to read without any separators. Custom Number Format Codes is perfect for this job. The hash (#) character should be your best bet to avoid any redundancy of placeholders (0, ?)

Showing Month and Weekday Names

Date and time values are stored as numbers in Excel. When you enter a date, Excel automatically converts it into a numerical value, and then formats the cell.

Before jumping into the code, let’s review some basics. Formatting code has special placeholders for date and time formatting that behave a bit differently. For example, while m and mm will show month as a number, mmm and mmmm will show as a text string. Below are some examples.

Here is the full list of options for the date 4/1/2018 23:59:31 ,

Come in Colors Everywhere

Number Formatting can be used color sections of a code. A common example is using the color red for negative numbers. Color code must be placed inside square brackets (i.e. [color]), and entered at the beginning of a section. Here are some available colors,

• [Black]
• [Blue]
• [Cyan]
• [Green]
• [Magenta]
• [Red]
• [White]
• [Yellow]

Conditions

Although Excel has conditional formatting menu, basic conditions can be applied through code. Condition should be placed inside square brackets (i.e. [condition]) just like colors. Conditions are similar to the conditions in some functions (i.e. SUMIF). First add a logical operator, and then a value. For example, “[>=1000000]” means “if value of cell is greater than or equal to 1,000,000 apply the following format”. Conditions should come before the actual code, again, just like with colors. If you want to a color as well, the color code should come first.

Another important thing to note here is, that section structure changes from Positive, Negative, Zero, Text to First Condition, Second Condition (if exists), if previous conditions are not applied. There should be at least two sections for conditions.

If you enter only one condition code and then save the format, Excel will automatically add the second section with «;General». This means that if the condition is not met, General format will be used.

In Excel, you aren’t limited to using built-in number formats. You can define your own custom number formats to display values as thousands or millions (23K or 95.3M), add leading zeros, display » — » for zero values, make negative values red, add bullets, and much more.

Watch the video we created to go along with this article!

How to Create a Custom Number Format

To create a custom number format, it is easiest to begin with a built-in format. Open the Format Cells dialog box by pressing Ctrl+1 (or right-click on a cell and select Format Cells) and select the Number tab (see the image below). Then (1) Choose Custom from the Category list, (2) Select a built-in format similar to what you want, and (3) Edit the format string in the Type field.

Number Format Codes

A number format string uses up to 4 different codes, separated by semicolons, as shown in the image below.

Instead of explaining the syntax in detail at this point, let’s take a look at some examples and learn as we go.

Some of the characters like #, 0, @, etc. have special meanings. Some codes like [Red] can change the font color, and quotes can be used to display text or special characters. The table below summarizes some of these special characters.

Special Characters in Number Formats

NOTE Some characters are specific to locale/language settings. For example J is used for Year in some countries.

Custom Number Format Examples

The examples below show some of the custom number formats that I’ve found the most useful. This isn’t a comprehensive list of all possible number formats. See support.microsoft.com to search for other articles on this subject.

TIP Using a custom number format only affects the displayed value. A formula that references the cell will use the stored value no matter how it is displayed. This means you can still use a formula to refer to the value even though the number might be displayed as «12 ft.»

To see these examples in action, download the Excel file below.

Download the Example File (CustomNumberFormats.xlsx)

Custom Number Format for Thousands and Millions

NOTE These are very useful for chart axes and labels.

Display Leading Zeros and Include Commas

Display Units Without Converting to Text

Special Time Formats

There are quite a few built-in time formats to choose from. The following may be less known.

Including Special Symbols

Some ascii and unicode characters can be copied and pasted directly into the format code. This can be handy for displaying the degrees symbol for temperatures as well as other tricks like showing up and down arrows or bulleted lists.

Displaying Fractions

Trailing and Leading Characters to Fill a Cell

The asterisk (*) in a format code repeats the following character to fill the width of the cell.

Custom Number Formats for Chart Axes and Labels

A couple of these examples can be seen in the image below. However, notice that the data labels don’t use color codes, so the percentages are shown only as black text rather than red and green. Too bad. Maybe Microsoft will fix that some day.

NOTE Editing a custom number format that contains a carriage return is tricky because you can’t see the second row. This is why I write out the code first using «{Ctrl+j}» or just «{j}» and then delete the «{j}» and press Ctrl+j in its place.

When adding a custom number format using the Format Axis window pane, you may not be able to press Ctrl+j to add a carriage return. In that case, first edit the format of the data source, then click on the Link to Source box as shown in the image to the right. After doing that, you can uncheck the Link to Source box and modify the original data source formatting.

Other Tricks

NOTE If you are looking for format codes for phone numbers, social security numbers, or zip codes, look in the Special category within the list of built-in number formats.

Custom Number Format Color Codes

By using color format codes such as [Red] or [Blue] or [Color10], you have a limited ability to alter the color of the font via custom number formats. The most common use I’ve seen is to color negative values red. However, one of the examples above also shows how you might want to use a green arrow.

Even though a new color palette was introduced in Excel 2007, the color codes for custom number formats are still based on the old color palette for the Excel 97-2003 format. I created the graphic below to provide a quick reference.

I made the above color code reference match the layout of the old color palette because there is not a consistent pattern to the numbering.

Define Your Own Color: You can modify the color palette in newer versions of Excel by going to File > Options > Save > Colors. This allows you to change the color associated with the Color1 through Color56 codes. This means that Color10 might not always be a dark green. If you purposely change the color palette (or somebody else does), Color10 might be some other color.

Excel 2016: File > Options > Save > Colors

NOTE The Color1-56 codes in Google Sheets are fixed colors and aren’t changed when you upload an Excel file with a customized color palette.

Conditional Operators

Conditional operators such as [<100] can be used to change the formatting in cases where positive;negative;0 is not how you want the divisions defined.

For example, the following format will display numbers less than 10 red, numbers between 10 and 20 green, other numbers blue, and text will be displayed based on the cell’s font color: [Red][<10]0.00;[Green][<=20]0.00;[Blue]0.00;@

You are limited to 2 numeric conditions, which you place in the negative and positive sections of the format code.

Another use of conditional operators is to display phone numbers with and without an area code, depending on how many digits are in the phone number like this: [<=9999999]###-####;(###)###-####. This assumes that the phone numbers are entered as numbers and not text values. Meaning, that if you actually enter 123-1234 into a cell in Excel, it will be interpreted as a text value, not a number. The phone number format will display 1234567 to 123-4567 and it will display 1234567890 to (123)456-7890.

Custom Location Codes for Dates

When displaying month names and weekday names for dates, you can use location codes such as [$-fr-CA] at the beginning of the format code to tell Excel to display the names in other languages. To learn what the code is for a specific language and location, use the Format Cells dialog in Excel, choose one of the built-in Date formats, then choose the Locale (location) from the drop-down list. Then you can return to the Format Cells dialog box and click on the Custom tab to see what location code was added.

Other Notes About Custom Number Formats

To delete a custom number format, open the Format Cells dialog box, select the custom format from the list, then click Delete. When you delete a custom number format, all values in your workbook that use that format will revert to the General format.

Custom number formats that you create are saved with the file. If you want to use the custom format in a different file, you can copy/paste the formatting from your other file by copying and pasting the formatted cell or using the Format Painter tool.

References

• Number Formats for Charts by Jon Peltier, Excel MVP
• Excel Custom Number Format Guide by Mynda Treacy, Excel MVP