ASCII Table

This ASCII table lists every standard code from 0 to 127, including named control characters, in decimal, hexadecimal, octal and binary.

Character or decimal code

Enter one character or a decimal number. A digit alone is treated as a number; use char:7 for the digit character.

Complete standard ASCII table

Decimal	Hex	Octal	Binary	Character
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
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	SPACE — Space
33	21	041	00100001	!
34	22	042	00100010	"
35	23	043	00100011	#
36	24	044	00100100	$
37	25	045	00100101	%
38	26	046	00100110	&
39	27	047	00100111	'
40	28	050	00101000	(
41	29	051	00101001	)
42	2A	052	00101010	*
43	2B	053	00101011	+
44	2C	054	00101100	,
45	2D	055	00101101	-
46	2E	056	00101110	.
47	2F	057	00101111	/
48	30	060	00110000	0
49	31	061	00110001	1
50	32	062	00110010	2
51	33	063	00110011	3
52	34	064	00110100	4
53	35	065	00110101	5
54	36	066	00110110	6
55	37	067	00110111	7
56	38	070	00111000	8
57	39	071	00111001	9
58	3A	072	00111010	:
59	3B	073	00111011	;
60	3C	074	00111100	<
61	3D	075	00111101	=
62	3E	076	00111110	>
63	3F	077	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 — Delete

Four sections of the same table

ASCII rows 0 through 31, in the same five-column order — Rows 0–31 from the generated table, in decimal, hex, octal, binary and character order.

ASCII rows 32 through 63, in the same five-column order — Rows 32–63 from the generated table, in decimal, hex, octal, binary and character order.

ASCII rows 64 through 95, in the same five-column order — Rows 64–95 from the generated table, in decimal, hex, octal, binary and character order.

ASCII rows 96 through 127, in the same five-column order — Rows 96–127 from the generated table, in decimal, hex, octal, binary and character order.

How to use the table

Type one ASCII character or its decimal code and select Find row. The page scrolls to and highlights the matching row. Hex, octal and binary columns are alternative representations of that same code. Binary is shown as an eight-bit group with a leading zero; standard ASCII uses seven meaningful bits.

Numbers entered in the lookup are decimal. To look up a digit character instead, enter char: followed by the digit, such as char:7. A literal space finds SPACE. For invisible control characters, enter their decimal code. Lookup highlights one existing row; it does not alter the table or convert files.

How were the values generated and checked?

We generated every integer in the inclusive range, formatted it in the three other bases, then parsed each formatted value back and checked that it equaled the original decimal code. We also encoded the character for each code as ASCII and checked its byte value. Every row passed those checks. Control names are standard labels, not measured quantities. The four figures contain the same generated rows, with no extra readings or estimates.

What is an ascii code?

An ascii code is the numeric identifier of a standard ASCII character or control action. The same value can be written in different bases; the character column identifies its meaning.

Why do some rows have names instead of visible letters?

Codes before SPACE are control characters, such as LF for Line Feed and CR for Carriage Return. DEL is also named. These do not represent ordinary printable letters, so the table displays their abbreviations and names.

Are LF and CR the same?

No. They are separate codes with separate rows. A line ending may contain LF or a CR followed by LF; the table does not combine them into one character.

Does the table include extended ASCII or emoji?

No. It is standard ASCII only. Values beyond the standard range require a different character encoding; an extended byte table is not one universal ASCII standard. Emoji are not ASCII characters.

How do I convert a sequence of codes?

Use the ASCII code to text decoder for code sequences, or the Text to ASCII encoder to obtain codes from text. This page is a complete reference table with a row locator.

Privacy and scope

Lookup runs in your browser. It does not require login, transmit the query, upload files or save a lookup history. It accepts one character or one decimal code at a time.

Related encoding walkthrough

This existing video demonstrates hexadecimal byte input and Base64 output. It is a related representation walkthrough, not a presentation of this ASCII table.

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Watch the existing encoding walkthrough on YouTube