Rem to Pixels
Multiplying a rem value by the root size gives its current CSS-pixel equivalent.
Rem to Pixels
Screen typography · 2 inputs
How to use this calculator
- Enter length in rem.
- Enter root font size in CSS px.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Confirm the production specification with the printer or delivery platform before choosing dimensions. Keep trim, bleed, live area and pixel density distinct. Numerical consistency helps prevent avoidable rework, but a final proof remains necessary to judge the finished layout.
The result changes when the root font size changes.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
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