ASCII table with decimal, hex, octal, binary and Unicode lookup

Q: How do I write a special character like € or é in HTML?

As an entity: &euro; or numeric &#8364; for €, &eacute; or &#233; for é. The lookup above shows both notations for every character.

Enter a character or a code above – A, é, €, 65, 0x41 or U+20AC – and see at once how it is written in decimal, hex, binary, UTF-8, HTML, CSS and JavaScript. The complete ASCII table below is there for reference.

Source: IETF RFC 20 – ASCII format for Network Interchange (Codetabelle, Steuerzeichen). Updated: 30 September 2026.

Character or code

A single character (emoji too) or a code: decimal (65), hex (0x41), Unicode (U+20AC) or HTML (€). For digits as a code use 0x or U+.

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Result

Character: A U+0041
Meaning
Unicode: U+0041
Decimal: 65
Hexadecimal: 41
Octal: 101
Binary: 1000001
UTF-8 (bytes, hex): 41
UTF-16 (units, hex): 0041
HTML: A
CSS: \41
JavaScript: \u0041
ASCII table: Dec Hex Oct Binary Char HTML Meaning
0 00 000 00000000 ␀  NUL – Null character
1 01 001 00000001 ␁  SOH – control character
2 02 002 00000010 ␂  STX – control character
3 03 003 00000011 ␃  ETX – control character
4 04 004 00000100 ␄  EOT – control character
5 05 005 00000101 ␅  ENQ – control character
6 06 006 00000110 ␆  ACK – control character
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 (Unix line ending)
11 0B 013 00001011 ␋  VT – control character
12 0C 014 00001100 ␌  FF – control character
13 0D 015 00001101 ␍  CR – Carriage return
14 0E 016 00001110 ␎  SO – control character
15 0F 017 00001111 ␏  SI – control character
16 10 020 00010000 ␐  DLE – control character
17 11 021 00010001 ␑  DC1 – control character
18 12 022 00010010 ␒  DC2 – control character
19 13 023 00010011 ␓  DC3 – control character
20 14 024 00010100 ␔  DC4 – control character
21 15 025 00010101 ␕  NAK – control character
22 16 026 00010110 ␖  SYN – control character
23 17 027 00010111 ␗  ETB – control character
24 18 030 00011000 ␘  CAN – control character
25 19 031 00011001 ␙  EM – control character
26 1A 032 00011010 ␚  SUB – control character
27 1B 033 00011011 ␛  ESC – Escape
28 1C 034 00011100 ␜  FS – control character
29 1D 035 00011101 ␝  GS – control character
30 1E 036 00011110 ␞  RS – control character
31 1F 037 00011111 ␟  US – control character
32 20 040 00100000 ␣   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 0
49 31 061 00110001 1 1
50 32 062 00110010 2 2
51 33 063 00110011 3 3
52 34 064 00110100 4 4
53 35 065 00110101 5 5
54 36 066 00110110 6 6
55 37 067 00110111 7 7
56 38 070 00111000 8 8
57 39 071 00111001 9 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 A
66 42 102 01000010 B B
67 43 103 01000011 C C
68 44 104 01000100 D D
69 45 105 01000101 E E
70 46 106 01000110 F F
71 47 107 01000111 G G
72 48 110 01001000 H H
73 49 111 01001001 I I
74 4A 112 01001010 J J
75 4B 113 01001011 K K
76 4C 114 01001100 L L
77 4D 115 01001101 M M
78 4E 116 01001110 N N
79 4F 117 01001111 O O
80 50 120 01010000 P P
81 51 121 01010001 Q Q
82 52 122 01010010 R R
83 53 123 01010011 S S
84 54 124 01010100 T T
85 55 125 01010101 U U
86 56 126 01010110 V V
87 57 127 01010111 W W
88 58 130 01011000 X X
89 59 131 01011001 Y Y
90 5A 132 01011010 Z 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 a
98 62 142 01100010 b b
99 63 143 01100011 c c
100 64 144 01100100 d d
101 65 145 01100101 e e
102 66 146 01100110 f f
103 67 147 01100111 g g
104 68 150 01101000 h h
105 69 151 01101001 i i
106 6A 152 01101010 j j
107 6B 153 01101011 k k
108 6C 154 01101100 l l
109 6D 155 01101101 m m
110 6E 156 01101110 n n
111 6F 157 01101111 o o
112 70 160 01110000 p p
113 71 161 01110001 q q
114 72 162 01110010 r r
115 73 163 01110011 s s
116 74 164 01110100 t t
117 75 165 01110101 u u
118 76 166 01110110 v v
119 77 167 01110111 w w
120 78 170 01111000 x x
121 79 171 01111001 y y
122 7A 172 01111010 z z
123 7B 173 01111011 { {
124 7C 174 01111100 | |
125 7D 175 01111101 } }
126 7E 176 01111110 ~ ~
127 7F 177 01111111 ␡  DEL – Delete

Dec	Hex	Oct	Binary	Char	HTML	Meaning
0	00	000	00000000	␀		NUL – Null character
1	01	001	00000001	␁		SOH – control character
2	02	002	00000010	␂		STX – control character
3	03	003	00000011	␃		ETX – control character
4	04	004	00000100	␄		EOT – control character
5	05	005	00000101	␅		ENQ – control character
6	06	006	00000110	␆		ACK – control character
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 (Unix line ending)
11	0B	013	00001011	␋		VT – control character
12	0C	014	00001100	␌		FF – control character
13	0D	015	00001101	␍		CR – Carriage return
14	0E	016	00001110	␎		SO – control character
15	0F	017	00001111	␏		SI – control character
16	10	020	00010000	␐		DLE – control character
17	11	021	00010001	␑		DC1 – control character
18	12	022	00010010	␒		DC2 – control character
19	13	023	00010011	␓		DC3 – control character
20	14	024	00010100	␔		DC4 – control character
21	15	025	00010101	␕		NAK – control character
22	16	026	00010110	␖		SYN – control character
23	17	027	00010111	␗		ETB – control character
24	18	030	00011000	␘		CAN – control character
25	19	031	00011001	␙		EM – control character
26	1A	032	00011010	␚		SUB – control character
27	1B	033	00011011	␛		ESC – Escape
28	1C	034	00011100	␜		FS – control character
29	1D	035	00011101	␝		GS – control character
30	1E	036	00011110	␞		RS – control character
31	1F	037	00011111	␟		US – control character
32	20	040	00100000	␣		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	0
49	31	061	00110001	1	1
50	32	062	00110010	2	2
51	33	063	00110011	3	3
52	34	064	00110100	4	4
53	35	065	00110101	5	5
54	36	066	00110110	6	6
55	37	067	00110111	7	7
56	38	070	00111000	8	8
57	39	071	00111001	9	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	A
66	42	102	01000010	B	B
67	43	103	01000011	C	C
68	44	104	01000100	D	D
69	45	105	01000101	E	E
70	46	106	01000110	F	F
71	47	107	01000111	G	G
72	48	110	01001000	H	H
73	49	111	01001001	I	I
74	4A	112	01001010	J	J
75	4B	113	01001011	K	K
76	4C	114	01001100	L	L
77	4D	115	01001101	M	M
78	4E	116	01001110	N	N
79	4F	117	01001111	O	O
80	50	120	01010000	P	P
81	51	121	01010001	Q	Q
82	52	122	01010010	R	R
83	53	123	01010011	S	S
84	54	124	01010100	T	T
85	55	125	01010101	U	U
86	56	126	01010110	V	V
87	57	127	01010111	W	W
88	58	130	01011000	X	X
89	59	131	01011001	Y	Y
90	5A	132	01011010	Z	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	a
98	62	142	01100010	b	b
99	63	143	01100011	c	c
100	64	144	01100100	d	d
101	65	145	01100101	e	e
102	66	146	01100110	f	f
103	67	147	01100111	g	g
104	68	150	01101000	h	h
105	69	151	01101001	i	i
106	6A	152	01101010	j	j
107	6B	153	01101011	k	k
108	6C	154	01101100	l	l
109	6D	155	01101101	m	m
110	6E	156	01101110	n	n
111	6F	157	01101111	o	o
112	70	160	01110000	p	p
113	71	161	01110001	q	q
114	72	162	01110010	r	r
115	73	163	01110011	s	s
116	74	164	01110100	t	t
117	75	165	01110101	u	u
118	76	166	01110110	v	v
119	77	167	01110111	w	w
120	78	170	01111000	x	x
121	79	171	01111001	y	y
122	7A	172	01111010	z	z
123	7B	173	01111011	{	{
124	7C	174	01111100	\|	\|
125	7D	175	01111101	}	}
126	7E	176	01111110	~	~
127	7F	177	01111111	␡		DEL – Delete

How it is calculated

ASCII (American Standard Code for Information Interchange) defines 128 characters: codes 0 to 31 are control characters, 32 is the space, 33 to 126 are printable characters (digits, unaccented letters, punctuation) and 127 is DEL. Each character needs 7 bits, usually stored in a whole byte.

How to use the table

Look up a character: enter a character or code above – the result shows decimal, hex, octal, binary and how to write it in HTML, CSS and JavaScript.
Filter the table: under “Show table” pick only control characters, printable characters or the extended range.
Keep going: the text to binary converter shows whole texts as bytes; the number system converter converts plain numbers.

Control characters

Codes 0–31 date from the teleprinter era and are not printable. Today the important ones are tab (9), line feed LF (10, the line ending on Unix and in the web), carriage return CR (13, together with LF the Windows line ending) and escape (27). The table shows them as visible placeholders (␀, ␊ …) so the row does not look empty.

Extended range 128–255

ASCII ends at 127. Codes 128–255 are not part of ASCII; here the table shows the Unicode block “Latin-1 Supplement” (identical to ISO 8859-1): accented letters and some symbols. Codes 128–159 are control characters there. Windows-1252 assigns 128–159 differently (for example “€” at 128) – it is not the same as Latin-1. In UTF-8 every character from 128 upward takes two or more bytes; the lookup above shows this in the UTF-8 row.

Looking up Unicode characters

The lookup understands any Unicode character, including the euro sign or emoji. It shows the code point (U+…), the UTF-8 bytes (RFC 3629), the UTF-16 units (a surrogate pair above U+FFFF, RFC 2781) and ready-made notations: € or named € in HTML, \20AC in CSS, \u20AC in JavaScript.

Frequently asked questions

What is the ASCII table?

A mapping of 128 characters to the numbers 0 to 127: control characters, space, digits, unaccented letters and punctuation. It is the foundation of Unicode and UTF-8.

How many characters does the ASCII table have?

128 characters (codes 0–127): 95 printable (32–126) and 33 control characters including DEL. Codes 128–255 belong to extended character sets such as Latin-1.

What are the ASCII codes of space, A and a?

Space is code 32 (hex 20), capital A is 65 (hex 41), lowercase a is 97 (hex 61). Upper and lower case letters differ by 32.

What is the difference between ASCII and Unicode?

ASCII has 128 characters, Unicode over 150,000 from nearly all scripts. The first 128 Unicode characters are identical to ASCII – in UTF-8 even byte for byte.

How do I write a special character like € or é in HTML?

As an entity: € or numeric € for €, é or é for é. The lookup above shows both notations for every character.

What are the ASCII special characters?

The printable punctuation and symbols sit at 33–47, 58–64, 91–96 and 123–126, for example ! # $ % & @ [ ] { } ~. Filter to “Printable characters” above.

Sources and legal basis

As of: 30 September 2026