PX To REM Code Converter

Enhance the usability of websites.

Calculation based on a root font-size of pixel.

Input (CSS)

Output (CSS)

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Create User-Friendly Web Pages using PX to REM Code Converter

If you have been wondering about methods to make your CSS more adaptive, but do not want to engage in the long process, Devflips have come up with the perfect solution. The PX to REM converter tool is a great creation that has made the life of developers easy.

This easy-to-use tool converts PX to REM in CSS within a few seconds, thus saving you a lot of time. Moreover, it is an Online Pixel Converter, there is no worry about having enough storage in your device.

This converter gets you the results of the px to rem value with complete accuracy, thus you can freely use this as a helper in your daily life. It is time to make coding fun and easy with Tool DevFlips PX-REM Code Converter.

Method To Use PX to REM Converter Tool

The px converter online is a tool that can be used without any expertise or prior knowledge. Below is the easy method you can use to Convert PX to REM in CSS.

Add Input

Take your CSS code and paste it into the left box. Once the code is pasted, it will convert pixels to rem.

Copy & Use The Output

The output will appear in the right box which you can copy and use.

Convert More

If you wish to convert further codes, you can click the clear button and convert the new code.

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 >
font-size: 16px;

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 4rem. So you can say:

width: 4rem;

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.

Save Time And Effort With PX To REM Code Converter

Introducing the Ultimate PX to REM Converter: Your Solution for Accurate and Effortless Unit Conversion

Are you tired of manually converting pixel values to rem units in your CSS code? Fret no more! Our PX to REM Converter is here to simplify your life and make your coding experience a breeze. Whether you're a seasoned developer or just starting out, this online tool will be your go-to companion for effortlesslyconverting pixel to rem values.

With our PX to REM Converter online, you can bid farewell to the days of cumbersome calculations and tedious conversions. No more second-guessing or worrying about compatibility across different devices and screen resolutions. Our intuitive and user-friendly interface ensures that you can easily convert px to rem, regardless of your level of expertise. The PX to REM converter is also a rem to px converter, so you get to enjoy two functionalities for free.

Convenience is key, which is why we have designed our PX to REM Converter to be accessible online. Say goodbye to the hassle of installing and updating software. All you need is an internet connection, and you're ready to convert your pixel values to rem units with just a few clicks.

Not familiar with the concept of pixel and rem units? Let us give you a brief overview. In web development, CSS styling is commonly done using pixel values (px). However, as the demand for responsive designs and mobile-friendly websites increased, the need for flexible units arose. This is where rem units come into play. Unlike pixels, rem units are relative to the root element's font size. This tool convert px to rem CSS and makes them ideal for designing websites that adapt seamlessly to different screen sizes and resolutions.

Our PX to REM online Converter offers a simple and effective solution for converting pixel values to rem units in CSS code. You can effortlessly convert individual pixel values or entire blocks of code in just a matter of seconds. No more manual calculations or trial-and-error approaches. Our converter ensures accuracy and saves you valuable time.

Are you concerned about maintaining consistency across your project? Don't worry; our CSS PX to REM Converter online allows you to convert multiple pixel values at once. Whether it's font sizes, margins, padding, or any other CSS property, our converter handles them all. Simply copy and paste your CSS code into our converter, and let it do the magic for you.

We understand that developers work with various tools and frameworks, each with its unique requirements. Our PX to EM Converter supports all popular CSS frameworks, ensuring compatibility and ease of use. Whether you're working with Bootstrap, Foundation, or any other framework, our pixel converter seamlessly integrates into your workflow.

Not only does our PX to REM value Converter convert pixel values to rem units, but it also provides the reverse functionality. Need to convert rem units back to pixels? No problem! Our converter supports bidirectional conversions, allowing you to switch between rem and pixel values effortlessly.

In addition to our online converter, we offer a handy calculator to assist you in converting pixel values to rem units. Simply input the desired pixel value, and our calculator will provide you with the corresponding rem value instantly. It's a quick and reliable solution for developers who need to perform one-off conversions without the need for extensive coding.

With our PX to REM Converter, you have full control over the conversion process. Customize the root font size according to your project's requirements, and our converter will adjust the rem values accordingly. This level of flexibility ensures that your designs are pixel-perfect after using a pixel converter and tailored to your specific needs.

Our Pixel to REM Converter is the ultimate tool for converting pixel values to rem units. Say goodbye to the complexities of manual calculations and embrace the simplicity and accuracy of our online converter. Whether you're a beginner or an experienced developer, our tool will streamline your workflow, save you time, and help you create stunning, responsive websites and change px to rem sizes with just a click. Give it a try today and experience the transformation in your coding process!


The converter tool is accurate as long as the conversion formula is exact and up to date. To ensure accuracy, verifying the converted data is always a good idea.

Using the rems instead of pixels in your CSS code improves the scalability, clarity, usability, maintenance, and compatibility of your webpage. It enhances the user experience and lets you have a more screen-size adaptable website.

Yes, the tool is designed to handle complex codes and convert the value with accuracy. The end results are correct and can be used for further work.

Converting all CSS code from pixels to rems is not mandatory, but it can assist build a more flexible and adaptable website design. It is up to the designer or developer to determine which parts of their code to convert.

In CSS, pixels (px) are absolute units of measurement, whereas rems (rem) are relative units of measurement. This means that pixels are fixed and do not change depending on the font size of the root element, whereas rems change depending on the font size of the root element.

Most modern browsers support the converted code, while older versions may not support rems or may require additional CSS rules to assure compatibility. To ensure compatibility, it's usually a good idea to test your code in several browsers.