How to convert String to Float in JavaScript?

JavaScript – Convert String to Float

To convert a string to float in JavaScript, call parseFloat() function and pass the string as argument to it.

parseFloat() function returns a floating point number created from the given string.

The syntax to convert a string str to a float is

parseFloat(str)

In the following example, we have taken a string in str, and convert this string to float using parseFloat() function.

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Any spaces around the string will be implicitly trimmed by the parseFloat() function.

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parseFloat() can also handle scientific notation of floating point number.

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If there are any non-digit characters in the given string, those characters would be ignored by parseFloat() function.

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In this JavaScript Tutorial, we learned how to convert a string into integer using parseFloat() function, with examples.