At the default root font size of 16px, 1.5625rem is exactly 25px.
Calculation based on a root font-size of 16 pixels.
How to convert 1.5625rem to px
To convert rem to pixels, multiply the rem value by the root font size: px = rem × 16. For 1.5625rem that is 1.5625 × 16 = 25px.
25px is a medium size, common for body text, subheadings, buttons and standard spacing.
1.5625rem at different root font sizes
| Root font size | Input | Result |
|---|---|---|
| 10px | 1.5625rem | 15.625px |
| 12px | 1.5625rem | 18.75px |
| 14px | 1.5625rem | 21.875px |
| 15px | 1.5625rem | 23.4375px |
| 16px | 1.5625rem | 25px |
| 18px | 1.5625rem | 28.125px |
| 20px | 1.5625rem | 31.25px |
| 22px | 1.5625rem | 34.375px |
| 24px | 1.5625rem | 37.5px |
CSS examples
font-size: 1.5625rem; /* 25px */
padding: 1.5625rem;
margin-bottom: 1.5625rem;
width: 1.5625rem;The same values in pixels, if you need a fixed size:
font-size: 25px;
padding: 25px;Tailwind CSS equivalent
1.5625rem is not part of the default Tailwind scale, but you can use an arbitrary value such as p-[1.5625rem] or text-[1.5625rem].
Nearby values
Frequently Asked Questions
1.5625rem equals 25px when the root font size is the browser default of 16px. The calculation is 1.5625 × 16 = 25.
25px equals 1.5625rem at a 16px root font size (25 ÷ 16 = 1.5625).
Yes. rem is relative to the root font size, so 1.5625rem becomes 28.125px at an 18px root and 31.25px at a 20px root. Use the base font size field above to try any value.
Prefer rem for font sizes, spacing and layout so they respect the user's browser font settings and scale for accessibility. Use px for details that should never scale, such as 1px borders or fixed icon sizes.