/convert/em-to-pixels/ Convert em (16px base) to px instantly. Includes a reference table and formula. article em (16px base) to px Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
🖥️ CSS & Design

em (16px base) to px Converter

Convert em (16px base) to px instantly. Includes a reference table and formula.

Quick answer: To convert em (16px base) to px, multiply by 16. For example, 1 em (16px base) = 16 px. Use the calculator below for any value.
em (16px base) to px
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Common conversions
em (16px base) px
Formula:

How to convert em (16px base) to px

1

Enter your value

Type the number of em (16px base) you want to convert into the left box. The result in px appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — px to em (16px base). Your current value carries across so you don't have to re-enter anything.

3

About em (16px base) and px

em (16px base) and px are both CSS units. Use this converter to switch between them instantly.

💡 Did you know?

At default 16px root: 1em = 16px. The em unit is named after the capital M in typography — originally the width of the letter M in a given typeface, which equalled the point size. In CSS, em always refers to the current element's font size, not the M character width.

📊 Common conversions at a glance
em (16px base) px
0.25 4
0.5 8
0.75 12
1 16
1.25 20
1.5 24
Reviewed for 2026. em (16px base) ↔ px conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.