How to Reliably Parse Strings with Decimal Points to Doubles in C#?

Robustly Parsing Decimal Strings to Doubles in C#

Directly parsing strings like "3.5" into doubles using double.Parse() can lead to errors depending on your system's regional settings. For instance, in German locales where the comma (,) is the decimal separator, double.Parse("3.5") would incorrectly return 35.

To ensure reliable parsing regardless of locale, leverage CultureInfo.InvariantCulture:

double parsedValue = double.Parse("3.5", CultureInfo.InvariantCulture);

Using CultureInfo.InvariantCulture forces double.Parse() to interpret the decimal point as a period (.), providing consistent results across all regional configurations. This eliminates locale-dependent parsing inconsistencies.

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