FormatNumber

This function formats a string as a number.

Format patterns follow the C# format types outlined in the official Microsoft documentation:

Some of these custom formats are supported:

NOTE: By default, this function rounds half up to two decimal places.

Arguments

FormatNumber(1,2,3)

Ordinal Type Required Description
1 String True The number string to format
2 String True The output format pattern (see table below for values)
3 String False ISO code for locale-specific pattern elements

Here are a few examples of format patterns, given a number of 123:

Element Format Pattern Output
Currency C or c $123.00
Decimal D or d 123
Exponential (scientific) E or e 1.230000E+002
Fixed-point F of f 123.00
General G or g 123
Number N or n 123.00
Percent P or p 12,300.00 %
Hexadecimal X or x 7B

NOTE: The D pattern requires an integer for input.

Here are a few examples of custom format patterns, given a number of -1.8967:

Element Format Pattern Example Output
Zero placeholder 0 "0000" -0002
Digit placeholder # "###0" -2
Decimal point . "#0.00" -1.90
Group separator and scaling , "0,00#.##" -0,001.9
Percentage placeholder % "#.00%" -189.67%
Exponential notation E0, E+0, e0 or e+0 "#0.0e0" -19.0e-1
Escape character \ "\###0.000\#" -#1.897#
Literal string delimiter 'string' or "string" "#.##' points'" -1.9 points
Section separator ; "#0.00;(#0.00)" (1.90)

Example 1

%%[

var @num
var @Currency
var @Currency3
var @Decimal
var @Exponential
var @Fixed
var @Fixed3
var @General
var @Number
var @Number3
var @Percent
var @Hex

set @num = "123"

set @Currency = FormatNumber(@num, "C")
set @Currency3 = FormatNumber(@num, "C3")
set @Decimal = FormatNumber(@num, "D")
set @Exponential = FormatNumber(@num, "E")
set @Fixed = FormatNumber(@num, "F")
set @Fixed3 = FormatNumber(@num, "F3")
set @General = FormatNumber(@num, "G")
set @Number = FormatNumber(@num, "N")
set @Number3 = FormatNumber(@num, "N3")
set @Percent = FormatNumber(@num, "P")
set @Hex = FormatNumber(@num, "X")

]%%
num: %%=v(@num)=%%
<br><br>Currency: %%=v(@Currency)=%%
<br>Currency3: %%=v(@Currency3)=%%
<br>Decimal: %%=v(@Decimal)=%%
<br>Exponential: %%=v(@Exponential)=%%
<br>Fixed: %%=v(@Fixed)=%%
<br>Fixed3: %%=v(@Fixed3)=%%
<br>General: %%=v(@General)=%%
<br>Number: %%=v(@Number)=%%
<br>Number3: %%=v(@Number3)=%%
<br>Percent: %%=v(@Percent)=%%
<br>Hex: %%=v(@Hex)=%%

Output

num: 123

Currency: $123.00
Currency3: $123.000
Decimal: 123
Exponential: 1.230000E+002
Fixed: 123.00
Fixed3: 123.000
General: 123
Number: 123.00
Number3: 123.000
Percent: 12,300.00 %
Hex: 7B

Example 2


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Example 3


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