1.09375 rem equals 17.5 pixels (px).
The conversion from rem units to pixels depends on the root font size of the HTML document, which is typically 16 pixels by default. Multiplying 1.09375 by 16 gives the pixel equivalent.
Conversion Tool
Result in px:
Conversion Formula
The basic formula to convert rem to pixels is:
pixels = rem × root font size
Where the root font size is the font size of the <html> element, commonly 16px.
This works because rem means “root em”, a unit relative to the root font size, so multiplying rem by that font size gives the pixel value.
For example, converting 1.09375 rem to px:
- Root font size = 16 px
- 1.09375 rem × 16 px = 17.5 px
Conversion Example
- Convert 2.5 rem to px:
- Multiply 2.5 by 16 (root font size): 2.5 × 16 = 40 px
- Result: 2.5 rem equals 40 pixels
- Convert 0.75 rem to px:
- 0.75 × 16 = 12 px
- So 0.75 rem is 12 pixels
- Convert 5 rem to px:
- 5 × 16 = 80 px
- Therefore 5 rem equals 80 pixels
- Convert 1.25 rem to px:
- 1.25 × 16 = 20 px
- Thus 1.25 rem is 20 pixels
- Convert 0.1 rem to px:
- 0.1 × 16 = 1.6 px
- 0.1 rem equals 1.6 pixels
Conversion Chart
| rem | px |
|---|---|
| -23.9 | -382.4 |
| -20.0 | -320.0 |
| -15.5 | -248.0 |
| -10.7 | -171.2 |
| -5.3 | -84.8 |
| -1.0 | -16.0 |
| 0.0 | 0.0 |
| 1.0 | 16.0 |
| 5.0 | 80.0 |
| 10.0 | 160.0 |
| 15.0 | 240.0 |
| 20.0 | 320.0 |
| 26.1 | 417.6 |
The chart shows rem values in left column and their pixel equivalents on right, based on 16px root font size. Use it quickly to find pixel sizes without calculation.
Related Conversion Questions
- How many pixels is 1.09375 rem on a browser with 16px default font?
- What changes if I convert 1.09375 rem to px with a different root font size?
- Can 1.09375 rem equal a fractional pixel value in CSS?
- How to convert 1.09375 rem to px in JavaScript dynamically?
- Is 1.09375 rem always the same pixel value across devices?
- How does zoom affect converting 1.09375 rem to pixels?
- What is the pixel equivalent of 1.09375 rem if root font is 18px?
Conversion Definitions
rem: The rem unit is a relative length unit in CSS that scales depending on the root element’s font size. Unlike em, rem always refers to the font size of the root <html> element, making it useful for consistent sizing across a webpage, even when nested elements change.
px: The pixel (px) is an absolute length unit representing a single dot on a screen. Pixels are fixed in size relative to the screen resolution and are used for precise measurement of digital content, giving exact control over layout and appearance in web design.
Conversion FAQs
Does changing browser settings affect rem to px conversion?
Yes, if a user changes the default font size in their browser, the root font size changes, so the px equivalent of a rem value changes accordingly. For example, if root font size is set to 20px, 1.09375 rem becomes 21.875 px instead of 17.5 px.
Can rem values result in fractional pixels?
Rem values can produce fractional pixel results, especially when multiplied by root font sizes that are not multiples of the rem number. Browsers handle subpixel rendering differently, sometimes rounding or anti-aliasing the output.
Why use rem instead of px in web design?
Rem units allow scalable and accessible layouts because they adjust based on user’s root font size preferences. Pixels are fixed and don’t scale, so rem provides flexibility for responsive design and better user experience.
How do I find the root font size on a webpage?
You can check the root font size by inspecting the html element in browser developer tools. Often it is set to 16px, but it can be changed by CSS or user settings, affecting rem conversions.
Is rem conversion affected by parent element font size?
No, unlike em units, rem is only relative to the root font size, not parent elements. This makes rem more predictable when nesting elements with different font sizes.
Last Updated : 22 July, 2025
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Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.