Change the decimal separator

The decimal separator is the symbol used to designate the position of the decimal between the digits of a number. The symbol used for this purpose can vary by country. Common decimal separators include the period, as in 10.123, and the comma, as in 10,123.

The decimal separator is part of your computer's regional settings which you can access from the Windows Control Panel. The specific names and locations of the settings depend on your release of Windows.

To change the decimal separator, open your computer's regional settings and do one of the following:
  • Choose a region or format that uses the decimal separator that you prefer. For example, to use a comma as a decimal separator, choose French (France) instead of English (United States).
  • Customize the current format by choosing a different decimal symbol for numbers.
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