1.6 rem equals 25.6 px.
The conversion from rem to pixels depends on the root font size set in the browser or stylesheet, which is usually 16 pixels by default. Multiplying the rem value by the root font size gives the equivalent pixel value.
Conversion Tool
Result in px:
Conversion Formula
The formula to convert rem to px is:
pixels (px) = rem value × root font size (px)
This works because rem is a relative unit based on the root element’s font size, which is commonly 16 px in browsers. If the root font size changes, the px value changes accordingly.
Example:
- Given: 1.6 rem
- Root font size: 16 px
- Calculation: 1.6 × 16 = 25.6 px
Conversion Example
- Convert 2.5 rem to px:
- Multiply 2.5 by 16
- 2.5 × 16 = 40 px
- Result: 40 px
- Convert 0.75 rem to px:
- Multiply 0.75 by 16
- 0.75 × 16 = 12 px
- Result: 12 px
- Convert 3.2 rem to px:
- Multiply 3.2 by 16
- 3.2 × 16 = 51.2 px
- Result: 51.2 px
- Convert 1 rem to px:
- Multiply 1 by 16
- 1 × 16 = 16 px
- Result: 16 px
- Convert 4.8 rem to px:
- Multiply 4.8 by 16
- 4.8 × 16 = 76.8 px
- Result: 76.8 px
Conversion Chart
This chart shows rem values from -23.4 to 26.6 and their equivalent px values based on a 16 px root font size. You can look up any rem value, find its px equivalent by multiplying by 16.
| Rem | Pixels (px) |
|---|---|
| -23.4 | -374.4 |
| -20.0 | -320.0 |
| -15.5 | -248.0 |
| -10.2 | -163.2 |
| -5.8 | -92.8 |
| -1.0 | -16.0 |
| 0.0 | 0.0 |
| 1.3 | 20.8 |
| 3.7 | 59.2 |
| 7.5 | 120.0 |
| 12.0 | 192.0 |
| 18.2 | 291.2 |
| 22.4 | 358.4 |
| 26.6 | 425.6 |
Related Conversion Questions
- How many pixels is 1.6 rem if the root font size changes?
- What is the pixel value for 1.6 rem on a mobile device?
- Does 1.6 rem always equal 25.6 px in every browser?
- How to convert 1.6 rem to pixels when root font size is 18 px?
- Why does 1.6 rem sometimes not equal 25.6 px on my website?
- Can 1.6 rem be smaller than 25.6 px in some cases?
- What affects the conversion of 1.6 rem to px in CSS?
Conversion Definitions
rem: Rem is a CSS unit for font sizes and other dimensions, representing root em. It scales relative to the root HTML font size, making layouts flexible. Changing the root font size modifies rem units across the page, enabling consistent resizing without manual adjustments.
px: Pixel is an absolute unit representing a single dot on a screen, used for precise measurements in digital design. Pixels don’t scale with user settings or screen sizes, so they give fixed dimensions, which can cause layout issues on different devices or resolutions.
Conversion FAQs
Why might 1.6 rem not always equal 25.6 px?
If the root font size isn’t 16 px, then multiplying 1.6 rem by 16 won’t give 25.6 px. Browsers or CSS can change the root font size, so the conversion depends on the actual root size. Also, user settings or zoom levels can affect pixel interpretation.
Can rem values be negative, and what does that mean for px?
Technically, you can assign negative rem values, but they usually produce invalid or unexpected CSS behavior, as sizes can’t be negative. In conversion, negative rem multiplied by root font size gives negative px, which isn’t practical in real layouts.
Is there a difference between rem and em in conversion to px?
Yes, rem is relative to the root font size, em is relative to the current element’s font size. So, converting em to px requires knowing the parent font size, while rem depends only on root size, making rem more consistent for conversions.
How does browser zoom affect rem to px conversion?
Browser zoom scales all sizes visually, including rem and px units. While the conversion formula remains the same, the actual displayed pixel size on screen can appear larger or smaller due to zoom, but computed pixel values in code stay consistent.
Why use rem instead of px for font sizes?
Rem allows scalable design because it adapts when the root font size changes, useful for accessibility and responsive layouts. Pixels are fixed, so using rem lets text and elements resize proportionally without redefining each size manually.