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

rem (16px base) to px Converter

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

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

How to convert rem (16px base) to px

1

Enter your value

Type the number of rem (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 rem (16px base). Your current value carries across so you don't have to re-enter anything.

3

About rem (16px base) and px

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

💡 Did you know?

1 rem = 16 px (browser default). The 'rem' unit was added to CSS3 specifically to avoid the em compounding problem. 1.5em inside 1.5em = 2.25× the root size; 1.5rem everywhere = always exactly 1.5× root. Use rem for typography and spacing; px for hairline borders.

📊 Common conversions at a glance
rem (16px base) px
0.25 4
0.5 8
0.75 12
1 16
1.25 20
1.5 24
Reviewed for 2026. rem (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.