Productivity and Utilities

ASCII Table

Look up any ASCII code from 0 to 127 in decimal, hex, octal and binary, with the name of each character.

Find a character

Type a decimal code (65), a hex code (0x41), one character (A) or part of a name (space, bracket).

Printable characters only (32 to 126)

Showing all 128 characters.

ASCII characters 0 to 127 with decimal, hexadecimal, octal and binary values
Dec	Hex	Oct	Binary	Char	Description
0	00	000	00000000	NUL	Null
1	01	001	00000001	SOH	Start of heading
2	02	002	00000010	STX	Start of text
3	03	003	00000011	ETX	End of text
4	04	004	00000100	EOT	End of transmission
5	05	005	00000101	ENQ	Enquiry
6	06	006	00000110	ACK	Acknowledge
7	07	007	00000111	BEL	Bell
8	08	010	00001000	BS	Backspace
9	09	011	00001001	HT	Horizontal tab
10	0A	012	00001010	LF	Line feed (new line)
11	0B	013	00001011	VT	Vertical tab
12	0C	014	00001100	FF	Form feed
13	0D	015	00001101	CR	Carriage return
14	0E	016	00001110	SO	Shift out
15	0F	017	00001111	SI	Shift in
16	10	020	00010000	DLE	Data link escape
17	11	021	00010001	DC1	Device control 1
18	12	022	00010010	DC2	Device control 2
19	13	023	00010011	DC3	Device control 3
20	14	024	00010100	DC4	Device control 4
21	15	025	00010101	NAK	Negative acknowledge
22	16	026	00010110	SYN	Synchronous idle
23	17	027	00010111	ETB	End of transmission block
24	18	030	00011000	CAN	Cancel
25	19	031	00011001	EM	End of medium
26	1A	032	00011010	SUB	Substitute
27	1B	033	00011011	ESC	Escape
28	1C	034	00011100	FS	File separator
29	1D	035	00011101	GS	Group separator
30	1E	036	00011110	RS	Record separator
31	1F	037	00011111	US	Unit separator
32	20	040	00100000	SP	Space
33	21	041	00100001	!	Exclamation mark
34	22	042	00100010	"	Double quote
35	23	043	00100011	#	Number sign
36	24	044	00100100	$	Dollar sign
37	25	045	00100101	%	Percent sign
38	26	046	00100110	&	Ampersand
39	27	047	00100111	'	Apostrophe
40	28	050	00101000	(	Left parenthesis
41	29	051	00101001	)	Right parenthesis
42	2A	052	00101010	*	Asterisk
43	2B	053	00101011	+	Plus sign
44	2C	054	00101100	,	Comma
45	2D	055	00101101	-	Hyphen-minus
46	2E	056	00101110	.	Period
47	2F	057	00101111	/	Slash
48	30	060	00110000	0	Digit 0
49	31	061	00110001	1	Digit 1
50	32	062	00110010	2	Digit 2
51	33	063	00110011	3	Digit 3
52	34	064	00110100	4	Digit 4
53	35	065	00110101	5	Digit 5
54	36	066	00110110	6	Digit 6
55	37	067	00110111	7	Digit 7
56	38	070	00111000	8	Digit 8
57	39	071	00111001	9	Digit 9
58	3A	072	00111010	:	Colon
59	3B	073	00111011	;	Semicolon
60	3C	074	00111100	<	Less-than sign
61	3D	075	00111101	=	Equals sign
62	3E	076	00111110	>	Greater-than sign
63	3F	077	00111111	?	Question mark
64	40	100	01000000	@	At sign
65	41	101	01000001	A	Capital letter A
66	42	102	01000010	B	Capital letter B
67	43	103	01000011	C	Capital letter C
68	44	104	01000100	D	Capital letter D
69	45	105	01000101	E	Capital letter E
70	46	106	01000110	F	Capital letter F
71	47	107	01000111	G	Capital letter G
72	48	110	01001000	H	Capital letter H
73	49	111	01001001	I	Capital letter I
74	4A	112	01001010	J	Capital letter J
75	4B	113	01001011	K	Capital letter K
76	4C	114	01001100	L	Capital letter L
77	4D	115	01001101	M	Capital letter M
78	4E	116	01001110	N	Capital letter N
79	4F	117	01001111	O	Capital letter O
80	50	120	01010000	P	Capital letter P
81	51	121	01010001	Q	Capital letter Q
82	52	122	01010010	R	Capital letter R
83	53	123	01010011	S	Capital letter S
84	54	124	01010100	T	Capital letter T
85	55	125	01010101	U	Capital letter U
86	56	126	01010110	V	Capital letter V
87	57	127	01010111	W	Capital letter W
88	58	130	01011000	X	Capital letter X
89	59	131	01011001	Y	Capital letter Y
90	5A	132	01011010	Z	Capital letter Z
91	5B	133	01011011	[	Left square bracket
92	5C	134	01011100	\	Backslash
93	5D	135	01011101	]	Right square bracket
94	5E	136	01011110	^	Caret
95	5F	137	01011111	_	Underscore
96	60	140	01100000	`	Grave accent (backtick)
97	61	141	01100001	a	Small letter a
98	62	142	01100010	b	Small letter b
99	63	143	01100011	c	Small letter c
100	64	144	01100100	d	Small letter d
101	65	145	01100101	e	Small letter e
102	66	146	01100110	f	Small letter f
103	67	147	01100111	g	Small letter g
104	68	150	01101000	h	Small letter h
105	69	151	01101001	i	Small letter i
106	6A	152	01101010	j	Small letter j
107	6B	153	01101011	k	Small letter k
108	6C	154	01101100	l	Small letter l
109	6D	155	01101101	m	Small letter m
110	6E	156	01101110	n	Small letter n
111	6F	157	01101111	o	Small letter o
112	70	160	01110000	p	Small letter p
113	71	161	01110001	q	Small letter q
114	72	162	01110010	r	Small letter r
115	73	163	01110011	s	Small letter s
116	74	164	01110100	t	Small letter t
117	75	165	01110101	u	Small letter u
118	76	166	01110110	v	Small letter v
119	77	167	01110111	w	Small letter w
120	78	170	01111000	x	Small letter x
121	79	171	01111001	y	Small letter y
122	7A	172	01111010	z	Small letter z
123	7B	173	01111011	{	Left curly brace
124	7C	174	01111100	\|	Vertical bar
125	7D	175	01111101	}	Right curly brace
126	7E	176	01111110	~	Tilde
127	7F	177	01111111	DEL	Delete

ASCII has 128 characters: 33 control codes (0 to 31 and 127), the space and 94 visible characters. Codes above 127 are not ASCII, and their meaning depends on the encoding in use.

Next step

Binary, Hex and ASCII Text TranslatorTurn whole sentences into binary, hex or decimal byte values.
Number Base ConverterConvert a single code between decimal, hex, octal and binary.
Copy and Paste SymbolsCopy symbols and special characters straight into your document.

How to use the ascii table

Scroll the table to see all 128 ASCII characters, or type in Find a character to narrow it down.
Search by decimal code (65), by hex code (0x41), by a single character (A) or by part of a name such as space, tab or bracket.
Tick Printable characters only to hide the control codes and DEL.
Press Copy the table as text to copy the rows that are showing, separated by tabs so they paste cleanly into a spreadsheet.

What ASCII is

ASCII is a 7 bit code that gives a number from 0 to 127 to each of 128 characters. The 1969 specification RFC 20 describes the same character set for network use. Almost every modern text encoding, including UTF-8, uses these same numbers for these same characters, so the table is useful far beyond old systems.

The 128 codes fall into groups. Codes 0 to 31 and 127 are control codes, which were made for teletype machines and still matter in text files and programs. Code 32 is the space. Codes 48 to 57 are the digits, 65 to 90 the capital letters, 97 to 122 the small letters, and the rest are punctuation and symbols.

Patterns worth knowing

A small letter is its capital plus 32, so A is 65 and a is 97. In binary that is one bit: the capitals start with 010 and the small letters with 011. A digit character is its value plus 48, so 0 is 48 and 9 is 57. This is why code can turn the character 7 into the number 7 by subtracting 48.

Line endings use control codes. LF (10) is a line feed and CR (13) is a carriage return. Unix style files end lines with LF, and Windows style files use CR followed by LF. HT (9) is the tab character. DEL (127) is the only control code outside the first 32.

Beyond 127

ASCII stops at 127. Codes from 128 to 255 are not part of ASCII, and what they mean depends on the encoding, such as Windows-1252, ISO 8859-1 or the multi-byte forms in UTF-8. To turn text into the byte values for any characters, including accents and emoji, use the binary translator, and to move numbers between decimal, hex and binary use the number base converter. For symbols you can copy straight into a document, see copy and paste symbols.

Assumptions and limits

The table lists the 128 characters of US-ASCII. Extended or national code pages are not shown.
Control characters are shown by their usual abbreviation, such as NUL, LF and ESC, because they have no visible form.
Names are plain English descriptions. Older documents may name some characters differently.
Hex values are shown in capital letters and octal in three digits.

Formulas reviewed October 10, 2026. See the calculation methodology for how SumPanda rounds, tests and sources its formulas.

Frequently asked questions

What is the ASCII code for A and a?

A is 65 (hex 41, binary 01000001) and a is 97 (hex 61, binary 01100001). The small letter is always the capital plus 32.

How many characters are in ASCII?

There are 128: 33 control codes (0 to 31 and 127), the space, and 94 visible characters made of letters, digits and punctuation.

What is the difference between ASCII and Unicode?

ASCII has 128 characters. Unicode has far more and covers most of the world's writing systems. UTF-8, the common way to store Unicode, keeps the first 128 codes identical to ASCII so old ASCII text is also valid UTF-8.

What are control characters used for?

They tell a device or program to do something rather than show a symbol, such as start a new line (LF), move to a tab stop (HT), ring a bell (BEL) or mark the end of a transmission (EOT).

Sources

RFC 20, ASCII format for Network Interchange (1969)