Conversion Table
Viewport Height | Em |
---|---|
0.01vh | 0.0068em |
0.03vh | 0.0203em |
0.05vh | 0.0338em |
0.08vh | 0.0541em |
0.1vh | 0.0675em |
0.15vh | 0.1013em |
0.2vh | 0.135em |
0.5vh | 0.3375em |
0.625vh | 0.4219em |
0.75vh | 0.5063em |
0.875vh | 0.5906em |
1vh | 0.675em |
1.125vh | 0.7594em |
1.25vh | 0.8438em |
1.375vh | 0.9281em |
1.5vh | 1.0125em |
1.625vh | 1.0969em |
1.75vh | 1.1813em |
1.875vh | 1.2656em |
2vh | 1.35em |
2.125vh | 1.4344em |
2.25vh | 1.5188em |
2.375vh | 1.6031em |
2.5vh | 1.6875em |
2.625vh | 1.7719em |
2.75vh | 1.8563em |
2.875vh | 1.9406em |
3vh | 2.025em |
3.125vh | 2.1094em |
3.25vh | 2.1938em |
3.375vh | 2.2781em |
3.5vh | 2.3625em |
3.625vh | 2.4469em |
3.75vh | 2.5313em |
3.875vh | 2.6156em |
4vh | 2.7em |
5vh | 3.375em |
6vh | 4.05em |
8vh | 5.4em |
10vh | 6.75em |
15vh | 10.125em |
20vh | 13.5em |
30vh | 20.25em |
40vh | 27em |
50vh | 33.75em |
60vh | 40.5em |
80vh | 54em |
100vh | 67.5em |
Differences Between vh and em
Viewport Height (vh) is a relative unit that scales according to 1% of the height of the viewport. Em is a relative unit that scales according to the font size of the element it is used on. vh units are useful for scalable and responsive design, while em units provide flexibility within the context of the current element's font size.
Advantages of Using vh
Using vh units allows for better scalability and flexibility in web design. Since vh is relative to the height of the viewport, it enables elements to scale proportionally to the viewport height. This is useful for responsive design and for creating layouts that adapt to different screen sizes.
How to Convert vh to em
To convert vh to em, you need to know the height of the viewport and the font size of the current element. The formula for conversion is:
em = vh * (viewport height / 100 / font-size)
For example, to convert 2vh to em, assuming the viewport height is 1080px and the font size is 16px:
2vh * (1080px / 100 / 16px) = 1.35em
Frequently Asked Questions
Why should I use vh instead of em?
Using vh allows for more scalable and flexible layouts, improving the responsiveness and adaptability of your design across different screen sizes.
How do I set the viewport height?
The viewport height is determined by the user's device and browser window size. You can use CSS media queries to adjust your layout based on different viewport heights.
Can I use vh for all elements?
Yes, you can use vh for most elements to ensure consistency and scalability across different screen sizes.