REM to PX Converter

Easily convert REM units to PX for accurate layout scaling in CSS.

REM Value

Enter the REM value you want to convert to px

REM Value

Adjust REM Value

Root Font Size (px)

Default browser root font size is 16px

PX Value

Converted px value based on your inputE

Result in Pixels

16px

Visual Size Representation

16px

Generated CSS Code

Common REM to PX Conversions

REM	PX (16px base)	Common Use
0.75rem	12px	Small text
0.875rem	14px	Secondary text
1rem	16px	Body text
1.25rem	20px	Subheadings
1.5rem	24px	H3 headings
2rem	32px	H2 headings
3rem	48px	H1 headings

About REM to PX Conversion

What is REM?

REM (Root EM) is a unit of measurement in CSS that represents the font size of the root element (typically the <html> element). By default, most browsers set the root font size to 16px, making 1rem equal to 16px unless otherwise specified.

How REM to PX Conversion Works

The formula to convert REM to PX is straightforward:

PX = REM × Root Font Size

For example, with the default root font size of 16px:

1rem = 16px
1.5rem = 24px
2rem = 32px
0.75rem = 12px

Why Use REM Units?

REM units are particularly useful for creating responsive designs because they scale relative to the root font size. This means you can adjust the entire layout of your website by simply changing the root font size, making it easier to implement responsive designs and accessibility features like text resizing.

When to Use REM vs PX

Use REM for:

Font sizes
Margins and padding
Widths that should scale with text size
Responsive layouts

Use PX for:

Border widths
Shadows
Elements that should maintain exact dimensions regardless of font size

Browser Support

REM units are supported in all modern browsers, including Chrome, Firefox, Safari, Edge, and Opera.