The way numbers need to be displayed varies on the context. Prices with different currencies need a different format than serial numbers with leading zeros. The Power Automate Format Number action and the interchangeably usable Power Automate formatNumber function simplifies formatting numbers.
Within this article you will learn
 How to use the Power Automate Format Number action
 How to use the Power Automate formatNumber function in expressions
 How to formulate format patterns according to your needs (lots of examples)
How To Use The Power Automate Format Number Action
Let’s format a number to the common US format for a dollar price. As an example, we will format 34800.67 to $34,800.67.

Create a new flow with a manual trigger
New flow

Add a Format Number action
Power Automate – Format Number action

Configure Format Number action: Number = 34800.67, Format = select $1,234.00 and Locale = select English (United States) (enUS)
Power Automate – Format Number action

Run the Format Number action flow
Power Automate – Format Number action – Result Test Run
power automate format number
Power Automate FormatNumber Function
The formatDate function does the same as the Format Date action. A given number is formatted based on a format and a locale to formatted string.
Syntax
formatNumber(number : number, format: string, locale?: string)
Parameters
 number (required): The number that needs to be formatted.
 format (required): The format that should be applied to format the number.
 locale (optional): The locale that is used to format the number.
Return value
 Returns the formatted number as a string that is formatted based on format and locale.
Power Automate Format Number Patterns
To format a number you need to provide a format. Formulating this format is for sure the hardest part.
We will show you the options you have for formulating formats and provide a lot of examples.
To define the number format you can use:
 Standard formats for Currency, Digits, Exponential, Float, Hexadecimal, Number or Percent
 Custom format
Below you will find explanations and examples of each format.
In most cases the Power Automate Format Number examples below are selfexplanatory.
Currency
To define the format of for a currency there is the standard C format. Simply use C followed by the number of decimal places you need.
If you only provide C as format you will get the default format C2.
Provide a locale to formatNumber to get the correct currency and format for the given locale.
Examples: Format number as currency
Format  Expression  Number  Result 

C  formatNumber(12345,’C’)  12345  $12,345.00 
C0  formatNumber(12345,’C0′)  12345  $12,345 
C1  formatNumber(12345,’C1′)  12345  $12,345.0 
C2  formatNumber(12345,’C2′)  12345  $12,345.00 
C3  formatNumber(12345,’C3′)  12345  $12,345.000 
C with german locale  formatNumber(12345,’C’,’dede’)  12345  12.345,00 € 
Digits
It is quite common to have numbers that need to have certain number of digits. To provide the needed number of digits leading zeros are often used to fulfil the needed length. The standard format D followed by the number of digits you need ensures the rigth number of digits.
Examples: Format number with leading zeros
Format  Expression  Number  Result 

D  formatNumber(123,’D’)  123  123 
D3  formatNumber(123,’D3′)  123  123 
D4  formatNumber(123,’D4′)  123  0123 
D6  formatNumber(123,’D6′)  123  000123 
D8  formatNumber(123,’D8′)  123  00000123 
Exponential
To format a number in exponential notation use the standard format E.
Examples: Format number in exponential notation
Format  Expression  Number  Result 

E  formatNumber(12345,’E’)  12345  1.234500E+004 
Float
You want to format a number with predefined number of decimal places, use the standard format F followed by the needed number of decimal places.
Examples: Format number as a float
Format  Expression  Number  Result 

F  formatNumber(12345,’F’)  12345  12345.00 
F0  formatNumber(12345,’F0′)  12345  12345 
F1  formatNumber(12345,’F1′)  12345  12345.0 
F2  formatNumber(12345,’F2′)  12345  12345.00 
F3  formatNumber(12345,’F3′)  12345  12345.000 
Hexadecimal
To format a number in hexadecimal use the standard format X.
Examples: Format number hex string
Format  Expression  Number  Result 

X  formatNumber(987,’X’)  987  3DB 
Number
To format a number with a thousand separator and a configurable number of decimal places use the standard format N.
Examples: Format number with thousand separator
Format  Expression  Number  Result 

N  formatNumber(12345,’N’)  12345  12,345.00 
N0  formatNumber(12345,’N0′)  12345  12,345 
N1  formatNumber(12345,’N1′)  12345  12,345.0 
N2  formatNumber(12345,’N2′)  12345  12,345.00 
N3  formatNumber(12345,’N3′)  12345  12,345.000 
Percent
The standard format P lets you display a number as a percentage.
Examples: Format number to percentage
Format  Expression  Number  Result 

P  formatNumber(0.5,’P’)  0.5  50.00% 
P0  formatNumber(0.5,’P0′)  0.5  50% 
P1  formatNumber(0.5,’P1′)  0.5  50.0% 
P2  formatNumber(0.5,’P2′)  0.5  50.00% 
P3  formatNumber(0.5,’P3′)  0.5  50.000% 
Custom Format
Sometimes the standard formats do not fit your needs. This is where custom formats come in.
By combining multiple placeholders you can define your own format.
Here is a list of the most common placeholders.
Placeholder  Description 

0  A digit if present, if there is no digit a 0. 
#  A digit if present, if there is no digit nothing is displayed. 
.  Use a decimal separator and a fixed number of decimal places. 
,  Use thousands separator. 
%  Multiplies the number by 100 and appends a % symbol. 
;  Define three sections with separate format strings for values greater than 0, less than 0 and equals 0 
You might wonder how to use them. Below there is at least one example for every placeholder.
0 – Zero Placeholder
Format  Expression  Number  Result 

00000000  formatNumber(12345,’00000000′)  12345  00012345 
00.00  formatNumber(12345,’00.00′)  12345  12345.00 
# – Digit Placeholder
Format  Expression  Number  Result 

########  formatNumber(12345,’########’)  12345  12345 
. – Decimal Point Placeholder
Format  Expression  Number  Result 

#.00  formatNumber(12345,’#.00′)  12345  12345.00 
, – Thousands Separator
Format  Expression  Number  Result 

#,#  formatNumber(12345,’#,#’)  12345  12,345 
% – Percent
Format  Expression  Number  Result 

#00.##%  formatNumber(0.1234,’#00.##%’)  0.1234  12.34% 
; – Section Separator
Format  Expression  Number  Result 

+0.00;0.00;0  formatNumber(1234,’+0.00;0.00;0′)  1234  +1234.00 