Conversion Table
Pixels | Em |
---|---|
8px | 0.5em |
10px | 0.625em |
12px | 0.75em |
14px | 0.875em |
16px | 1em |
18px | 1.125em |
20px | 1.25em |
22px | 1.375em |
24px | 1.5em |
26px | 1.625em |
28px | 1.75em |
30px | 1.875em |
32px | 2em |
34px | 2.125em |
36px | 2.25em |
38px | 2.375em |
40px | 2.5em |
42px | 2.625em |
44px | 2.75em |
46px | 2.875em |
48px | 3em |
50px | 3.125em |
52px | 3.25em |
54px | 3.375em |
56px | 3.5em |
58px | 3.625em |
60px | 3.75em |
62px | 3.875em |
64px | 4em |
Differences Between px and em
Pixels (px) are a fixed unit of measurement commonly used in digital displays. Em (em), on the other hand, is a relative unit that scales according to the font size of the parent element. This makes em useful for scalable and responsive design.
Advantages of Using em
Using em units allows for better scalability within a component. Since em is relative to the parent element's font size, it can create scalable elements that adjust proportionally within their container.
How to Convert px to em
To convert pixels to em, you need to know the parent element's font size. The formula for conversion is:
em = px / parent font size
For example, to convert 32px to em, assuming the parent font size is 16px:
32px / 16px = 2em
Frequently Asked Questions
Why should I use em instead of px?
Using em allows for more flexible and scalable layouts, especially when elements need to scale relative to their container.
How do I set the parent font size?
You can set the parent font size using CSS on the parent element. For example:
body {
font-size: 16px;
}
Can I use em for all elements?
Yes, em can be used for most elements to ensure scalability within components. However, for fine-tuning certain elements, you might still use other units like rem or px.