16px = 1rem

16 pixels converts to 1rem when the root font-size is 16px (the browser default). This conversion is calculated by dividing the pixel value by the base font size: 16 ÷ 16 = 1.

Formula

16px ÷ 16 = 1rem

CSS Example

/* 16px as rem */
.element {
  font-size: 1rem; /* 16px */
}

When to Use 16px (1rem)

A value of 16px (1rem) is commonly used for body text, paragraph text, default browser font size, and standard UI text. In responsive web design, using 1rem instead of 16px ensures your body and paragraph text scale proportionally when users change their browser font size settings.

Why Use REM?

REM units are relative to the root element's font-size, making them ideal for accessible, responsive designs. When you write 1rem instead of 16px, your layout respects user preferences — if someone sets their browser to a larger font size for readability, all your rem-based values scale up proportionally.

Nearby Conversions

px	rem
6px	0.375rem	Convert →
7px	0.4375rem	Convert →
8px	0.5rem	Convert →
9px	0.5625rem	Convert →
10px	0.625rem	Convert →
11px	0.6875rem	Convert →
12px	0.75rem	Convert →
13px	0.8125rem	Convert →

Common Conversions

px	rem
8	0.5
10	0.625
12	0.75
14	0.875
18	1.125
20	1.25
24	1.5
32	2
48	3
64	4
96	6

Frequently Asked Questions

What is 16px in rem?▼

16px is 1rem. Divide 16 by 16 (the default root font-size) to get 1.

How do I convert 16px to rem in CSS?▼

Replace 16px with 1rem in your CSS. For example: font-size: 1rem; which equals 16px at the default 16px base.

Why use 1rem instead of 16px?▼

Using 1rem makes your design responsive and accessible. If a user changes their browser font size, 1rem scales proportionally while 16px stays fixed.

What if my base font-size is not 16px?▼

If your root font-size is different (e.g., 14px), divide 16 by that value instead. At 14px base: 16 ÷ 14 = 1.143rem.

Is 1rem the same in all browsers?▼

Yes, 1rem equals 16px in all modern browsers since they all default to a 16px root font-size. The value only changes if the user or your CSS explicitly sets a different root font-size.

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