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ASCII 65

ASCII 65 is Capital letter A, written A.

Every representation

CharacterA
NameCapital letter A
Decimal65
Hexadecimal0x41
Octal0101
Binary01000001
HTML entityA
Escape sequence\x41
UnicodeU+0041
GroupLetter

What it is for

The capital letter A. Capitals run from 65 to 90 and their lowercase counterparts from 97 to 122, exactly 32 apart, so changing case is a single bit flip.

Where the number comes from

The alphabet was placed so that capitals start at 65 and lowercase at 97 — exactly 32 apart, a single bit. Changing case is therefore c ^ 32, and this was a deliberate design decision rather than a coincidence.

Frequently asked questions

What is ASCII 65?

Capital letter A, the character A. In hexadecimal it is 0x41, in octal 0101, and in binary 01000001.

How do I type ASCII 65?

Type A directly. In a string literal it can also be written \\x41, and in HTML as A.

Is ASCII 65 printable?

Yes. Codes 32 to 126 are the printable range, which is every character ASCII can actually display.

Nearby codes

Full ASCII table · Text to binary converter · Number base converter