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10px to rem

10 pixels expressed in rem, the unit that scales when a user changes their browser's font size.

10px=0.625rem

10 ÷ 16 = 0.625 — rem is just pixels divided by the root font size, which defaults to 16px.

root size10px in rem
14px0.7143rem
16px0.625rem
18px0.5556rem
20px0.5rem

Different value? Use the converter.