Change the decimal separator

The decimal separator is the symbol that designates the position of the decimal between the digits of a number. Decimal separators 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 and language settings and do one of the following:
  • Select a region (location) that uses the decimal separator that you prefer. For example, to use a comma as a decimal separator, select French (France).
  • Customize the current format by selecting a different decimal symbol for numbers.