DevFlips PX to REM Converter - Free Online Tool

An easy to use px to rem converter tool for web designers

Pixel

PX

REM

REM

Calculation based on a root font-size of pixel.

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How to Use PX to REM Calculator

Step 1: Select your base font.
Step 2: Input the pixels (px) value on the 16 field that you want to convert to rem.
Step 3: The result will be displayed on 1.14 field.

PX to REM Conversion Table

These are the mostly used px to rem sizes. This is considering that your base font (font-size) is 16px. You can also use the converter above.

Pixels

REM

1px
0.06rem
2px
0.13rem
3px
0.19rem
4px
0.25rem
5px
0.31rem
6px
0.38rem
7px
0.44rem
8px
0.50rem
9px
0.56rem
10px
0.63rem
11px
0.69rem
12px
0.75rem
13px
0.81rem
14px
0.88rem
15px
0.94rem
16px
1.00rem
17px
1.06rem
18px
1.13rem
19px
1.19rem
20px
1.25rem

How to Convert PX to REM

The key to converting a px value to rem is the font-size you declare on <html> element.

html{font-size: 16px}

Then, you can use the formula and manually compute its rem equivalent.

PX to REM Formula:

rem = px * base font

Difference Between PX and REM

To know the difference between px and rem, you need first to understand what they are what how they behave.

First off, they are measurements used on screen media or screens on various devices. They are units commonly used to measure lengths in CSS (Cascading Style Sheets).

The difference between them is that px is a fix-size unit. If you say that this font is 16px, it is absolutely 16px wherever you put it. It's just that other devices may display it differently. A 16px font on your computer monitor might be displayed differently on a 16px font on your mobile phone. You get the idea

However, rem unit is a scalable one. It adopts or shall we say, it is always be relative to the base font. So what is a base font now? It is the font size you declare on <html> tag.

<style >
html{
font-size: 16px;
}
</style>

So given you assinged a base font, when you set sizes on your<main>,<header>,<footer>,<article>,<div>,<nav>, Remember that rem is relative to your base font assigned to HTML element. So if you say your base font-size is 16px, that means that when you want an <aside> element to have 64px width, you can assign 3rem. So you can say:

<style>
aside{
width: 3rem;
}
</style>

In addition, if you can notice, when you don't declare base font-size on your <html> element, fonts just becomes bold or bigger than the normal. When you declare this style on <html> element, the normal size will be respected by the browser.

Most Popular Questions

Simply type a value in pixels into the input box. In the output field, the converted number in rem will be displayed. You can copy the results by pressing the copy button and use it. The same process is followed by the REM to PX converter where you put the REM Value and it converts the value. Copy it and use it.

Yes, because the PX to REM Converter employs the standard formula for turning pixels to rem, it is precise as long as the base font size is properly set. It is, however, always advisable to double-check the resulting values by verifying them in different size screens.

No, the Converter was created especially to convert pixel values to rem values or REM values to PX. Other units of measurement will require the use of a separate converter or manual adjustment.

Yes, you can use a PX to REM converter because they adjust to the user's font size choices, REM units can make your layout easier to use.

The REM unit of measurement adjusts to the font size specified by the person using it in their browser settings. As a result, it is a more adaptable and responsive element to use in your CSS code.

No, you can not convert more than one value at the same time. However, there is a chart given that can help you look for the converted values and make your work easy.