ASCII (American Standard Code for Information Interchange) is a character encoding standard mapping 128 characters (0–127) to numeric codes used by computers.

What is the ASCII code for A?

Uppercase A is decimal 65, hexadecimal 41, and binary 01000001.

What is the difference between ASCII and Unicode?

ASCII covers basic English characters in 7 bits. Unicode (UTF-8) extends this to support all world languages using variable-length encoding.

Why does lowercase a have code 97?

Lowercase letters are offset by 32 from uppercase. A=65, so a=97. This pattern simplifies case conversion in programming.

How do I convert text to ASCII?

Use our ASCII Converter to encode any string to decimal, hex, and binary codes instantly.

ASCII Table — Character Codes Decimal, Hex & Binary

ASCII assigns a numeric code to each character. Standard ASCII uses codes 0–127; extended ASCII reaches 255. This table covers printable characters (32–126) plus common control codes. Convert any string with our ASCII Converter or read the full ASCII explained guide.

Common Control Codes

Code	Name	Hex
0	NUL	00
9	TAB	09
10	LF	0A
13	CR	0D

Printable ASCII Characters (32–126)

Char	Dec	Hex	Binary
space	32	20	00100000
!	33	21	00100001
"	34	22	00100010
#	35	23	00100011
$	36	24	00100100
%	37	25	00100101
&	38	26	00100110
'	39	27	00100111
(	40	28	00101000
)	41	29	00101001
*	42	2A	00101010
+	43	2B	00101011
,	44	2C	00101100
-	45	2D	00101101
.	46	2E	00101110
/	47	2F	00101111
0	48	30	00110000
1	49	31	00110001
2	50	32	00110010
3	51	33	00110011
4	52	34	00110100
5	53	35	00110101
6	54	36	00110110
7	55	37	00110111
8	56	38	00111000
9	57	39	00111001
:	58	3A	00111010
;	59	3B	00111011
<	60	3C	00111100
=	61	3D	00111101
>	62	3E	00111110
?	63	3F	00111111
@	64	40	01000000
A	65	41	01000001
B	66	42	01000010
C	67	43	01000011
D	68	44	01000100
E	69	45	01000101
F	70	46	01000110
G	71	47	01000111
H	72	48	01001000
I	73	49	01001001
J	74	4A	01001010
K	75	4B	01001011
L	76	4C	01001100
M	77	4D	01001101
N	78	4E	01001110
O	79	4F	01001111
P	80	50	01010000
Q	81	51	01010001
R	82	52	01010010
S	83	53	01010011
T	84	54	01010100
U	85	55	01010101
V	86	56	01010110
W	87	57	01010111
X	88	58	01011000
Y	89	59	01011001
Z	90	5A	01011010
[	91	5B	01011011
\	92	5C	01011100
]	93	5D	01011101
^	94	5E	01011110
_	95	5F	01011111
`	96	60	01100000
a	97	61	01100001
b	98	62	01100010
c	99	63	01100011
d	100	64	01100100
e	101	65	01100101
f	102	66	01100110
g	103	67	01100111
h	104	68	01101000
i	105	69	01101001
j	106	6A	01101010
k	107	6B	01101011
l	108	6C	01101100
m	109	6D	01101101
n	110	6E	01101110
o	111	6F	01101111
p	112	70	01110000
q	113	71	01110001
r	114	72	01110010
s	115	73	01110011
t	116	74	01110100
u	117	75	01110101
v	118	76	01110110
w	119	77	01110111
x	120	78	01111000
y	121	79	01111001
z	122	7A	01111010
{	123	7B	01111011
\|	124	7C	01111100
}	125	7D	01111101
~	126	7E	01111110

ASCII Table

Common Control Codes

Printable ASCII Characters (32–126)

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