EM to VW Converter

Differences Between em and vw

Em is a relative unit that scales according to the font size of the element it is used on. Viewport Width (vw) is a relative unit that scales according to 1% of the width of the viewport. Em units are useful for scalable and responsive design, while vw units provide a way to size elements relative to the viewport width.

Advantages of Using em

Using em units allows for better scalability and flexibility in web design. Since em is relative to the font size of the parent element, it enables elements to scale proportionally. This is useful for responsive design and for respecting user preferences for font size.

How to Convert em to vw

To convert em to viewport width, you need to know the font size of the element and the viewport width. The formula for conversion is:

vw = em * (font size * 100 / viewport width)

For example, to convert 2em to viewport width, assuming the font size is 16px and the viewport width is 1920px:

2em * (16px * 100 / 1920px) = 1.6667vw

Frequently Asked Questions

Why should I use em instead of vw?

Using em allows for more scalable and flexible layouts within the context of the current element's font size, improving the responsiveness and accessibility of your design.

How do I set the font size?

You can set the font size using CSS on the parent element. For example:

parent-element {
    font-size: 16px;
}

Can I use em for all elements?

Yes, you can use em for most elements to ensure consistency and scalability within the context of the current element's font size.