Conversion Table
Root Em | Viewport Minimum |
---|---|
0.01rem | 0.0148vmin |
0.03rem | 0.0444vmin |
0.05rem | 0.0741vmin |
0.08rem | 0.1185vmin |
0.1rem | 0.1481vmin |
0.15rem | 0.2222vmin |
0.2rem | 0.2963vmin |
0.5rem | 0.7407vmin |
0.625rem | 0.9259vmin |
0.75rem | 1.1111vmin |
0.875rem | 1.2963vmin |
1rem | 1.4815vmin |
1.125rem | 1.6667vmin |
1.25rem | 1.8519vmin |
1.375rem | 2.0370vmin |
1.5rem | 2.2222vmin |
1.625rem | 2.4074vmin |
1.75rem | 2.5926vmin |
1.875rem | 2.7778vmin |
2rem | 2.9630vmin |
2.125rem | 3.1481vmin |
2.25rem | 3.3333vmin |
2.375rem | 3.5185vmin |
2.5rem | 3.7037vmin |
2.625rem | 3.8889vmin |
2.75rem | 4.0741vmin |
2.875rem | 4.2593vmin |
3rem | 4.4444vmin |
3.125rem | 4.6296vmin |
3.25rem | 4.8148vmin |
3.375rem | 5.0000vmin |
3.5rem | 5.1852vmin |
3.625rem | 5.3704vmin |
3.75rem | 5.5556vmin |
3.875rem | 5.7407vmin |
4rem | 5.9259vmin |
5rem | 7.4074vmin |
6rem | 8.8889vmin |
8rem | 11.8519vmin |
10rem | 14.8148vmin |
15rem | 22.2222vmin |
20rem | 29.6296vmin |
30rem | 44.4444vmin |
40rem | 59.2593vmin |
50rem | 74.0741vmin |
60rem | 88.8889vmin |
80rem | 118.5185vmin |
100rem | 148.1481vmin |
Differences Between rem and vmin
Root Em (rem) is a relative unit that scales according to the root element's font size, typically the HTML element. Viewport Minimum (vmin) is a relative unit that scales based on the smaller dimension of the viewport, whether it be width or height. One vmin unit is equal to 1% of the smaller viewport dimension, making it useful for responsive design.
Advantages of Using rem
Using rem units allows for better scalability and consistency across different screen sizes and resolutions. Since rem is relative to the root element's font size, adjusting the font size of the root element will proportionally scale all elements using rem units. This is particularly useful for responsive design and accessibility, as it respects user preferences for font size.
How to Convert rem to vmin
To convert rem to vmin, you need to know the root element's font size and the smaller dimension of the viewport. The formula for conversion is:
vmin = (rem * root font size) / (smaller viewport dimension / 100)
For example, to convert 2rem to vmin, assuming the root font size is 16px and the smaller viewport dimension is 1000px:
2rem * 16px / (1000px / 100) = 3.2vmin
Frequently Asked Questions
Why should I use rem instead of vmin?
Using rem allows for more scalable and consistent layouts across different screen sizes and user settings, improving accessibility.
How do I set the root font size?
You can set the root font size using CSS on the HTML element. For example:
html {
font-size: 16px;
}
Can I use rem for all elements?
Yes, you can use rem for most elements to ensure consistency. However, for elements that need to scale with the smaller dimension of the viewport, vmin might be more suitable.