Convert between PX and REM with custom base size. Everything runs locally in your browser — nothing is uploaded.
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PX to REM Converter lets you convert between PX and REM with custom base size. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Convert between PX and REM with custom base size. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, PX to REM Converter runs entirely on your device with no internet connection needed. All processing is done locally.
16px = 1rem (the browser default). You can customize the base size to match your project's root font-size setting.
Yes. PX to REM and REM to PX conversion are both supported. Enter values in either field and the other updates instantly.
REM is relative to the root font-size, making designs scalable and accessible. Users who change their browser font-size will see your layout adapt.
Yes. Both positive and negative values, as well as decimal PX and REM values (e.g., 0.75rem, 12.5px), are converted accurately.
Yes. All calculations run in your browser. No data is transmitted.