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Pixel to REM Calculator

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Convert pixel values to rem and rem values back to pixels. TypeKitty's pixel to rem calculator runs locally in your browser, so you can use a configurable root size for accurate responsive CSS calculations.

Typography & Textnumber

Result

1.5rem

4px0.25rem
8px0.5rem
12px0.75rem
14px0.875rem
16px1rem
20px1.25rem
24px1.5rem
32px2rem
40px2.5rem
48px3rem
64px4rem

How to use Pixel to REM Calculator

Move between fixed pixel values and scalable CSS units. Check the result before copying or downloading it.

  1. Add your number

    01

    Enter or choose the number you want to process with this browser tool.

  2. Adjust the options

    02

    Review the available settings and choose the output that fits your task.

  3. Copy or download

    03

    Inspect the result, then copy or download it without creating an account.

Practical examples

Start with a real input, then adapt it to your task.

Example input

24px at base 16

The browser workflow processes 24px at base 16 locally and produces a result you can inspect before export.

Example input

1.5rem at base 16

The browser workflow processes 1.5rem at base 16 locally and produces a result you can inspect before export.

Example input

px to rem converter

The browser workflow processes px to rem converter locally and produces a result you can inspect before export.

How this browser tool works

TypeKitty processes the data you enter in this browser tab. It is not sent to a TypeKitty tool API.

No account required
number workflow
Preview before download

Current limitation

Results depend on valid input and the options supported by the browser.

All tools

What to know before you start

The root font size controls the result

Browsers commonly start with a 16 px root size, making 16 px equal to 1 rem and 24 px equal to 1.5 rem. A project stylesheet or user preference can change that relationship, so enter the actual root value used by the interface you are building.

Relative sizing supports flexible interfaces

Rem values can scale typography and spacing when users adjust browser text settings. Pixels are still appropriate for source image dimensions and some hairline details. Converting does not automatically make a design accessible; test zoom, wrapping, and responsive layouts too.

Frequently asked questions

Continue working

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