Hex Calculator

Hex conversion and arithmetic.

Result

Hex10F
Decimal271
Binary100001111

Hex Calculator — FAQs

What is hexadecimal?

Base-16 using digits 0–9 and A–F. One hex digit = 4 bits; FF = 255. Used for colours, memory addresses, bytes.

Why use hexadecimal?

Each hex digit maps to exactly 4 bits — compact binary representation used in colours (#FF5733), memory addresses and MAC addresses.

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Free to use — paste this snippet into any webpage. It auto-resizes and includes a small attribution link. Add ?theme=dark to the iframe URL for dark mode.