PX to EM Converter

How to Use PX to EM Converter

1. Enter base value (You can skip this step if your base font size is set to 16 PX.)
2. Enter the value in PX that you want to convert

What is EM?

In CSS, "em" is a unit of measurement used to specify the size of text. It is a relative unit, meaning that it is based on the size of the parent element's font. One em is equal to the current font-size of the parent element.

For example, if the parent element has a font-size of 16px, then 1em is equal to 16px. If you set the font-size of a child element to 0.8em, the child element will have a font-size of 12.8px (0.8 * 16px).

It is a useful unit for creating responsive designs, as it allows you to specify sizes that are relative to the user's preferences and the device they are using to view the web page.

Additionally, it is used to size other properties such as padding, margin, and border.

For example: p { font-size: 1.2em; padding: 0.5em; }

This will set the font-size of the p tag to 1.2 times the font-size of the parent element, and will set the padding of the p tag to 0.5 times the font-size of the parent element.

In HTML, the "em" unit can also be used to specify the size of text. It works in the same way as it does in CSS, where it is based on the size of the parent element's font. Using "em" in HTML allows you to create responsive designs, as the text size will adjust based on the user's preferences and the device they are using to view the web page.

Here's an example of using "em" in an HTML tag:

Copy code
<p style="font-size: 1.2em;">This is some text with a font size of 1.2 times the parent element's font size.</p>
In this example, the text inside the <p> tag will have a font size of 1.2 times the font size of the parent element.

It's worth mentioning that, you can use "em" on any element that can be styled with font-size, not just text elements like <p> or <span>

Additionally, it's also common to use "em" for other properties, such as padding, margin, and border, to maintain consistency and proportionality across different elements on the page.

It's important to keep in mind that, when you use "em" it's relative to the closest parent element font-size, If multiple font-size values are applied to the ancestors, the "em" units will be relative to the closest font-size value.

Difference Between PX and EM

Both PX and EM are units of measurement used in web development, specifically in CSS, to specify the size of text, padding, margin and border. The main difference between the two is that PX is an absolute unit of measurement, while EM is a relative unit of measurement.

• PX: Pixels are fixed-size units that are used in screen-based media (such as computer screens and mobile devices). They are absolute units, meaning that 1px will always be the same physical size, regardless of the screen size or resolution.
• EM: Ems are a relative unit of measurement, based on the font-size of the parent element. One em is equal to the current font-size of the parent element. When you use "em" it's relative to the closest parent element font-size. It is useful for creating responsive designs, as it allows for sizes that are relative to the user's preferences and device used to view the web page.

In summary, PX is a fixed size unit that is the same across all devices, while EM is a relative unit that adjusts based on the font-size of the parent element and the user's device.

PX to EM Formula

The formula to convert pixels (px) to ems (em) is as follows:

em = px / parent element font-size

For example, if the font-size of the parent element is 16px and you want to convert 24px to ems:

24px / 16px = 1.5em

So, 24px is equivalent to 1.5em when the parent element's font-size is 16px.

It's important to note that this formula only works when the parent element's font-size is in pixels, if the parent element font-size is in ems, it will be relative to the parent of the parent, and so on.

Another thing to keep in mind is that the formula is useful in case you have a fixed design and you want to make it responsive, but in practice, you may use the browser developer tools, to check the current font-size of an element and use that as the parent font-size.

Pixels to Em Conversion Table

There are standard units of measurement utilized by web developers and designers. For example:

PX	EM
2px	0,125em
4px	0,25em
6px	0,375em
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
64px	4em
96px	6em
100px	6,25em
128px	8em
150px	9,375em
200px	12,5em
256px	16em
300px	18,75em
320px	20em
350px	21,875em
400px	25em
480px	30em
500px	31,25em
512px	32em
576px	36em
768px	48em
800px	50em
850px	53,125em
900px	56,25em
960px	60em
992px	62em
1000px	62,5em
1024px	64em
1100px	68,75em
1120px	70em
1200px	75em
1250px	78,125em
1280px	80em
1440px	90em
1500px	93,75em
1600px	100em
1920px	120em