NUMBERVALUE function

The NUMBERVALUE function in Excel is used to convert text that appears to be a number into an actual numeric value, allowing you to perform mathematical operations on it. This function is particularly useful when dealing with numbers in text format (e.g., due to imported data or inconsistent formatting) and you need to convert them to actual numeric values for calculations.

Syntax:

=NUMBERVALUE(text, [decimal_separator], [group_separator])

Parameters:

• text (required): The text string that represents a number you want to convert.
• decimal_separator (optional): A character used to separate the decimal part of the number. For example, a period (.) in the US or a comma (,) in some European countries. If omitted, Excel uses the system’s default decimal separator.
• group_separator (optional): A character used to separate the thousands part of the number. For example, a comma (,) in the US or a period (.) in some European countries. If omitted, Excel uses the system’s default group separator.

Key Points:

• Text to Number: The primary function of NUMBERVALUE is to convert numbers stored as text into actual numeric values.
• Custom Separators: You can specify custom decimal and group separators, which is particularly useful when working with numbers in different regional settings or formats.
• System Default Separators: If you don’t specify separators, Excel will automatically use the system’s default settings for your region.

Example Usage:

1. Converting a Number in Text Format

If cell A1 contains the text “1234.56”, and you want to convert it to a number, the formula:

=NUMBERVALUE(A1)

This will return:

1234.56

The text “1234.56” is converted into a numeric value.

2. Using a Custom Decimal Separator

If the text “1.234,56” is in cell A2, which uses a comma (,) as the decimal separator and a period (.) as the group separator, you can use:

=NUMBERVALUE(A2, ",", ".")

This will return:

1234.56

Here, the comma is treated as the decimal separator, and the period is treated as the thousands separator.

3. Handling Group Separators

If cell A3 contains “1,234,567.89” and you want to convert it to a number, use:

=NUMBERVALUE(A3, ".", ",")

This will return:

1234567.89

The comma is treated as the thousands separator, and the period is the decimal separator.

4. Converting Negative Numbers

If cell A4 contains the text “-1,234.56”, and you want to convert it to a number, the formula:

=NUMBERVALUE(A4)

This will return:

-1234.56

The negative sign is preserved.

Notes:

• Error Handling: If the text string contains invalid characters (such as letters or symbols not part of a number), NUMBERVALUE will return an error.
• Decimal and Group Separators: If the system’s regional settings match the separators used in the text, you don’t need to specify them in the function. However, if the separators differ, you can specify them to ensure proper conversion.
• Conversion from Other Formats: It works effectively to convert text values that represent large numbers, currency, or percentages into usable numeric values for further calculations.

Related Functions:

• VALUE: Another function to convert text to a number, but VALUE may not handle custom decimal and group separators as flexibly as NUMBERVALUE.
• TEXT: Converts numbers into text with specific formatting.
• TEXTJOIN: Combines multiple text strings into one.

The NUMBERVALUE function is especially useful when working with data from different locales or when numbers are entered as text and need to be converted for mathematical processing.