What is the best way to calculate the pixel height of an element when the height is specified in vh units?

element lies this inquiry:

In my JavaScript code for developing Windows 8 apps, I have set the max-height of an element to 65vh. I now require a method to convert this value into pixels in order to determine if an image can adequately fit within this space or if adjustments need to be made through resizing or cropping.

The plan is to calculate this conversion by utilizing the formula:

Since 100 vh is equivalent to screen.height, it follows that 65vh in pixels would equal screen.height * 0.65.

javascriptcssheightviewport-units

Answer №1

It's not always screen.height * 0.65 that you should be looking at, but rather viewport.height * 0.65. While a Windows 8 app will maintain a consistent height regardless of its snapped state, the distinction becomes significant in web-based applications.

In the realm of JavaScript:

window.innerHeight * 0.65;

And for those utilizing jQuery:

$(window).height() * 0.65;

Answer №2

Whenever I utilize the code $("div").height();, it consistently provides the value in pixels.

Feel free to examine this JSFiddle.

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