ASCII table

All 128 ASCII codes (0–127) with decimal, hexadecimal, octal, binary, and the character or control-code name.

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Dec	Hex	Oct	Binary	Char
0	00	0	00000000	NUL
1	01	1	00000001	SOH
2	02	2	00000010	STX
3	03	3	00000011	ETX
4	04	4	00000100	EOT
5	05	5	00000101	ENQ
6	06	6	00000110	ACK
7	07	7	00000111	BEL
8	08	10	00001000	BS
9	09	11	00001001	HT (tab)
10	0A	12	00001010	LF (newline)
11	0B	13	00001011	VT
12	0C	14	00001100	FF
13	0D	15	00001101	CR
14	0E	16	00001110	SO
15	0F	17	00001111	SI
16	10	20	00010000	DLE
17	11	21	00010001	DC1
18	12	22	00010010	DC2
19	13	23	00010011	DC3
20	14	24	00010100	DC4
21	15	25	00010101	NAK
22	16	26	00010110	SYN
23	17	27	00010111	ETB
24	18	30	00011000	CAN
25	19	31	00011001	EM
26	1A	32	00011010	SUB
27	1B	33	00011011	ESC
28	1C	34	00011100	FS
29	1D	35	00011101	GS
30	1E	36	00011110	RS
31	1F	37	00011111	US
32	20	40	00100000	Space
33	21	41	00100001	!
34	22	42	00100010	"
35	23	43	00100011	#
36	24	44	00100100	$
37	25	45	00100101	%
38	26	46	00100110	&
39	27	47	00100111	'
40	28	50	00101000	(
41	29	51	00101001	)
42	2A	52	00101010	*
43	2B	53	00101011	+
44	2C	54	00101100	,
45	2D	55	00101101	-
46	2E	56	00101110	.
47	2F	57	00101111	/
48	30	60	00110000	0
49	31	61	00110001	1
50	32	62	00110010	2
51	33	63	00110011	3
52	34	64	00110100	4
53	35	65	00110101	5
54	36	66	00110110	6
55	37	67	00110111	7
56	38	70	00111000	8
57	39	71	00111001	9
58	3A	72	00111010	:
59	3B	73	00111011	;
60	3C	74	00111100	<
61	3D	75	00111101	=
62	3E	76	00111110	>
63	3F	77	00111111	?
64	40	100	01000000	@
65	41	101	01000001	A
66	42	102	01000010	B
67	43	103	01000011	C
68	44	104	01000100	D
69	45	105	01000101	E
70	46	106	01000110	F
71	47	107	01000111	G
72	48	110	01001000	H
73	49	111	01001001	I
74	4A	112	01001010	J
75	4B	113	01001011	K
76	4C	114	01001100	L
77	4D	115	01001101	M
78	4E	116	01001110	N
79	4F	117	01001111	O
80	50	120	01010000	P
81	51	121	01010001	Q
82	52	122	01010010	R
83	53	123	01010011	S
84	54	124	01010100	T
85	55	125	01010101	U
86	56	126	01010110	V
87	57	127	01010111	W
88	58	130	01011000	X
89	59	131	01011001	Y
90	5A	132	01011010	Z
91	5B	133	01011011	[
92	5C	134	01011100	\
93	5D	135	01011101	]
94	5E	136	01011110	^
95	5F	137	01011111	_
96	60	140	01100000	`
97	61	141	01100001	a
98	62	142	01100010	b
99	63	143	01100011	c
100	64	144	01100100	d
101	65	145	01100101	e
102	66	146	01100110	f
103	67	147	01100111	g
104	68	150	01101000	h
105	69	151	01101001	i
106	6A	152	01101010	j
107	6B	153	01101011	k
108	6C	154	01101100	l
109	6D	155	01101101	m
110	6E	156	01101110	n
111	6F	157	01101111	o
112	70	160	01110000	p
113	71	161	01110001	q
114	72	162	01110010	r
115	73	163	01110011	s
116	74	164	01110100	t
117	75	165	01110101	u
118	76	166	01110110	v
119	77	167	01110111	w
120	78	170	01111000	x
121	79	171	01111001	y
122	7A	172	01111010	z
123	7B	173	01111011	{
124	7C	174	01111100	\|
125	7D	175	01111101	}
126	7E	176	01111110	~
127	7F	177	01111111	DEL

Frequently asked questions

What is the ASCII code for "A"?

Uppercase A is 65 in decimal (0x41 hex, 0o101 octal). Lowercase a is 97 (0x61).

How many ASCII characters are there?

Standard ASCII defines 128 codes (0–127): 33 control codes (0–31 plus 127) and 95 printable characters (32–126, including space).

What is the difference between ASCII and Unicode?

ASCII covers 0–127. Unicode is a superset that keeps those same values for the first 128 code points and adds hundreds of thousands more for other scripts and symbols.

What is ASCII 0 / NUL?

Code 0 is NUL, the null character — often used to terminate strings in C. It is a control code, not a printable character.