Direct answer
Group your binary digits in fours (right-to-left), then convert each group to a hex digit: 1111=F, 1110=E, 1010=A.
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Binary input
HEX output
About Binary → HEX
Going from binary to hex shrinks long bitstrings into something humans can read at a glance. A 32-bit register printed as "11111111000000001111111100000000" is awful; as "FF00FF00" you can verify it instantly.
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Frequently asked questions
What if my binary length isn't a multiple of 4?
Pad with leading zeros. "111" becomes "0111" which is hex 7.
Can I include spaces or underscores?
Yes — this converter strips whitespace and underscores. So "1111_0000" works the same as "11110000".