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CSS Unit Converter

Convert between CSS units: px, rem, em, vw, vh, and %.

Input Value

Root Font Size (px)

Used for rem conversion

Parent Font Size (px)

Used for em conversion

Viewport Width (px)

Used for vw conversion

Viewport Height (px)

Used for vh conversion

Parent Size (px)

Used for % conversion

px16px

rem1rem

em1em

vw0.8333vw

vh1.4815vh

%0.8333%