ASCII Table

All 128 ASCII codes with their decimal, hexadecimal, binary and octal values, the printable character or control-code name, and answers to the lookups people search for most.

Quick ASCII lookups

ASCII is a 7-bit code, so it has exactly 128 codes, 0 to 127. Symbols such as ♥ and © are not ASCII at all: they come from Unicode and from 8-bit code pages such as Windows-1252 and code page 437.

Common ASCII lookups with decimal, hex and binary values
Lookup	Decimal	Hex	Binary	Character	Note
ascii 0 (the digit zero)	48	30	00110000	0	The character 0 is code 48 (0x30). Digits 0–9 are codes 48–57.
ascii 0 (the NUL character)	0	00	00000000	NUL	Code 0 is NUL, the all-zeros control character, used as a string terminator in C.
ascii a	97	61	01100001	a	Lowercase a is 97 (0x61); uppercase A is 65 (0x41). Case differs by exactly 32.
ascii A	65	41	01000001	A	Uppercase letters A–Z are 65–90.
ascii space	32	20	00100000	(space)	Space is 32 (0x20), the first printable code.
ascii enter	13	0D	00001101	CR	Enter is traditionally CR, carriage return (13). Unix text ends lines with LF (10); Windows uses CR LF (13, 10).
ascii tab	9	09	00001001	HT	Horizontal tab is 9 (0x09).
ascii escape	27	1B	00011011	ESC	Escape is 27 (0x1B); it begins terminal escape sequences.
ascii delete	127	7F	01111111	DEL	DEL is 127 (0x7F), all seven bits set.
ascii heart	—	—	—	♥	Not ASCII. Unicode U+2665 Black Heart Suit; HTML &hearts;; code page 437 byte 3 (Alt+3 on Windows).
ascii copyright	—	—	—	©	Not ASCII. Unicode U+00A9 Copyright Sign; Windows-1252 and Latin-1 byte 169 (Alt+0169); HTML ©.

Sources: RFC Editor (IETF): RFC 20: ASCII format for network interchange; Unicode Consortium: Unicode Character Database: UnicodeData.txt

ASCII control characters (0–31 and 127)

Codes 0 to 31 and 127 are control characters: they were designed to control devices and data links rather than print. A few are still in daily use: tab (9), line feed (10), carriage return (13) and escape (27).

ASCII control codes with decimal, hex, binary, octal, abbreviation and name
Decimal	Hex	Binary	Octal	Abbreviation	Name
0	00	00000000	000	NUL	Null
1	01	00000001	001	SOH	Start of Heading
2	02	00000010	002	STX	Start of Text
3	03	00000011	003	ETX	End of Text
4	04	00000100	004	EOT	End of Transmission
5	05	00000101	005	ENQ	Enquiry
6	06	00000110	006	ACK	Acknowledge
7	07	00000111	007	BEL	Bell
8	08	00001000	010	BS	Backspace
9	09	00001001	011	HT	Horizontal Tabulation (Tab)
10	0A	00001010	012	LF	Line Feed
11	0B	00001011	013	VT	Vertical Tabulation
12	0C	00001100	014	FF	Form Feed
13	0D	00001101	015	CR	Carriage Return
14	0E	00001110	016	SO	Shift Out
15	0F	00001111	017	SI	Shift In
16	10	00010000	020	DLE	Data Link Escape
17	11	00010001	021	DC1	Device Control 1
18	12	00010010	022	DC2	Device Control 2
19	13	00010011	023	DC3	Device Control 3
20	14	00010100	024	DC4	Device Control 4
21	15	00010101	025	NAK	Negative Acknowledge
22	16	00010110	026	SYN	Synchronous Idle
23	17	00010111	027	ETB	End of Transmission Block
24	18	00011000	030	CAN	Cancel
25	19	00011001	031	EM	End of Medium
26	1A	00011010	032	SUB	Substitute
27	1B	00011011	033	ESC	Escape
28	1C	00011100	034	FS	File Separator
29	1D	00011101	035	GS	Group Separator
30	1E	00011110	036	RS	Record Separator
31	1F	00011111	037	US	Unit Separator
127	7F	01111111	177	DEL	Delete

Sources: RFC Editor (IETF): RFC 20: ASCII format for network interchange

ASCII printable characters (32–126)

Codes 32 to 126 are the 95 printable characters: space, punctuation, digits 0–9 (48–57), uppercase A–Z (65–90) and lowercase a–z (97–122). Setting bit 5 (adding 32) turns an uppercase letter into its lowercase form. Binary values are shown as 8-bit bytes with a leading 0.

ASCII printable characters with decimal, hex, binary, octal and Unicode name
Decimal	Hex	Binary	Octal	Character	Name
32	20	00100000	040	(space)	Space
33	21	00100001	041	!	Exclamation Mark
34	22	00100010	042	"	Quotation Mark
35	23	00100011	043	#	Number Sign
36	24	00100100	044	$	Dollar Sign
37	25	00100101	045	%	Percent Sign
38	26	00100110	046	&	Ampersand
39	27	00100111	047	'	Apostrophe
40	28	00101000	050	(	Left Parenthesis
41	29	00101001	051	)	Right Parenthesis
42	2A	00101010	052	*	Asterisk
43	2B	00101011	053	+	Plus Sign
44	2C	00101100	054	,	Comma
45	2D	00101101	055	-	Hyphen-Minus
46	2E	00101110	056	.	Full Stop
47	2F	00101111	057	/	Solidus
48	30	00110000	060	0	Digit Zero
49	31	00110001	061	1	Digit One
50	32	00110010	062	2	Digit Two
51	33	00110011	063	3	Digit Three
52	34	00110100	064	4	Digit Four
53	35	00110101	065	5	Digit Five
54	36	00110110	066	6	Digit Six
55	37	00110111	067	7	Digit Seven
56	38	00111000	070	8	Digit Eight
57	39	00111001	071	9	Digit Nine
58	3A	00111010	072	:	Colon
59	3B	00111011	073	;	Semicolon
60	3C	00111100	074	<	Less-Than Sign
61	3D	00111101	075	=	Equals Sign
62	3E	00111110	076	>	Greater-Than Sign
63	3F	00111111	077	?	Question Mark
64	40	01000000	100	@	Commercial At
65	41	01000001	101	A	Latin Capital Letter A
66	42	01000010	102	B	Latin Capital Letter B
67	43	01000011	103	C	Latin Capital Letter C
68	44	01000100	104	D	Latin Capital Letter D
69	45	01000101	105	E	Latin Capital Letter E
70	46	01000110	106	F	Latin Capital Letter F
71	47	01000111	107	G	Latin Capital Letter G
72	48	01001000	110	H	Latin Capital Letter H
73	49	01001001	111	I	Latin Capital Letter I
74	4A	01001010	112	J	Latin Capital Letter J
75	4B	01001011	113	K	Latin Capital Letter K
76	4C	01001100	114	L	Latin Capital Letter L
77	4D	01001101	115	M	Latin Capital Letter M
78	4E	01001110	116	N	Latin Capital Letter N
79	4F	01001111	117	O	Latin Capital Letter O
80	50	01010000	120	P	Latin Capital Letter P
81	51	01010001	121	Q	Latin Capital Letter Q
82	52	01010010	122	R	Latin Capital Letter R
83	53	01010011	123	S	Latin Capital Letter S
84	54	01010100	124	T	Latin Capital Letter T
85	55	01010101	125	U	Latin Capital Letter U
86	56	01010110	126	V	Latin Capital Letter V
87	57	01010111	127	W	Latin Capital Letter W
88	58	01011000	130	X	Latin Capital Letter X
89	59	01011001	131	Y	Latin Capital Letter Y
90	5A	01011010	132	Z	Latin Capital Letter Z
91	5B	01011011	133	[	Left Square Bracket
92	5C	01011100	134	\	Reverse Solidus
93	5D	01011101	135	]	Right Square Bracket
94	5E	01011110	136	^	Circumflex Accent
95	5F	01011111	137	_	Low Line
96	60	01100000	140	`	Grave Accent
97	61	01100001	141	a	Latin Small Letter A
98	62	01100010	142	b	Latin Small Letter B
99	63	01100011	143	c	Latin Small Letter C
100	64	01100100	144	d	Latin Small Letter D
101	65	01100101	145	e	Latin Small Letter E
102	66	01100110	146	f	Latin Small Letter F
103	67	01100111	147	g	Latin Small Letter G
104	68	01101000	150	h	Latin Small Letter H
105	69	01101001	151	i	Latin Small Letter I
106	6A	01101010	152	j	Latin Small Letter J
107	6B	01101011	153	k	Latin Small Letter K
108	6C	01101100	154	l	Latin Small Letter L
109	6D	01101101	155	m	Latin Small Letter M
110	6E	01101110	156	n	Latin Small Letter N
111	6F	01101111	157	o	Latin Small Letter O
112	70	01110000	160	p	Latin Small Letter P
113	71	01110001	161	q	Latin Small Letter Q
114	72	01110010	162	r	Latin Small Letter R
115	73	01110011	163	s	Latin Small Letter S
116	74	01110100	164	t	Latin Small Letter T
117	75	01110101	165	u	Latin Small Letter U
118	76	01110110	166	v	Latin Small Letter V
119	77	01110111	167	w	Latin Small Letter W
120	78	01111000	170	x	Latin Small Letter X
121	79	01111001	171	y	Latin Small Letter Y
122	7A	01111010	172	z	Latin Small Letter Z
123	7B	01111011	173	{	Left Curly Bracket
124	7C	01111100	174	\|	Vertical Line
125	7D	01111101	175	}	Right Curly Bracket
126	7E	01111110	176	~	Tilde

Sources: RFC Editor (IETF): RFC 20: ASCII format for network interchange; Unicode Consortium: Unicode Character Database: UnicodeData.txt

Quick ASCII lookups

ASCII control characters (0–31 and 127)

ASCII printable characters (32–126)

References

Frequently asked questions