At the default root font size of 16px, 36px is exactly 2.25rem.
Calculation based on a root font-size of 16 pixels.
How to convert 36px to rem
To convert pixels to rem, divide the pixel value by the root font size: rem = px ÷ 16. For 36px that is 36 ÷ 16 = 2.25rem.
36px is a large size, common for headings, section padding and generous layout gaps.
36px at different root font sizes
| Root font size | Input | Result |
|---|---|---|
| 10px | 36px | 3.6rem |
| 12px | 36px | 3rem |
| 14px | 36px | 2.5714rem |
| 15px | 36px | 2.4rem |
| 16px | 36px | 2.25rem |
| 18px | 36px | 2rem |
| 20px | 36px | 1.8rem |
| 22px | 36px | 1.6364rem |
| 24px | 36px | 1.5rem |
CSS examples
font-size: 2.25rem; /* 36px */
padding: 2.25rem;
margin-bottom: 2.25rem;
width: 2.25rem;The same values in pixels, if you need a fixed size:
font-size: 36px;
padding: 36px;Tailwind CSS equivalent
The default spacing scale has a step for 2.25rem: use classes like p-9, m-9, gap-9, w-9 and h-9. As a font size, 2.25rem is the default text-4xl class.
Nearby values
Frequently Asked Questions
36px equals 2.25rem when the root font size is the browser default of 16px. The calculation is 36 ÷ 16 = 2.25.
2.25rem equals 36px at a 16px root font size (2.25 × 16 = 36).
Yes. If the root font size is 18px, 36px equals 2rem, and at 20px it equals 1.8rem. The pixel value itself never changes, only the rem equivalent. 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.