Hexadecimal Chart (0–255)

This hexadecimal chart lists every byte value from 0 to 255 with its decimal, hex, binary and octal forms and the character it stands for. Rows 0–31 and 127 are ASCII control codes, 32–126 are printable ASCII, 128–159 are C1 control codes, and 160–255 are Latin-1 characters.

0–63: control codes, digits and punctuation

Dec	Hex	Binary	Oct	Char
0	00	0000 0000	000	NULNull
1	01	0000 0001	001	SOHStart of Heading
2	02	0000 0010	002	STXStart of Text
3	03	0000 0011	003	ETXEnd of Text
4	04	0000 0100	004	EOTEnd of Transmission
5	05	0000 0101	005	ENQEnquiry
6	06	0000 0110	006	ACKAcknowledge
7	07	0000 0111	007	BELBell
8	08	0000 1000	010	BSBackspace
9	09	0000 1001	011	HTHorizontal Tabulation
10	0A	0000 1010	012	LFLine Feed
11	0B	0000 1011	013	VTVertical Tabulation
12	0C	0000 1100	014	FFForm Feed
13	0D	0000 1101	015	CRCarriage Return
14	0E	0000 1110	016	SOShift Out
15	0F	0000 1111	017	SIShift In
16	10	0001 0000	020	DLEData Link Escape
17	11	0001 0001	021	DC1Device Control 1
18	12	0001 0010	022	DC2Device Control 2
19	13	0001 0011	023	DC3Device Control 3
20	14	0001 0100	024	DC4Device Control 4
21	15	0001 0101	025	NAKNegative Acknowledge
22	16	0001 0110	026	SYNSynchronous Idle
23	17	0001 0111	027	ETBEnd of Transmission Block
24	18	0001 1000	030	CANCancel
25	19	0001 1001	031	EMEnd of Medium
26	1A	0001 1010	032	SUBSubstitute
27	1B	0001 1011	033	ESCEscape
28	1C	0001 1100	034	FSFile Separator
29	1D	0001 1101	035	GSGroup Separator
30	1E	0001 1110	036	RSRecord Separator
31	1F	0001 1111	037	USUnit Separator
32	20	0010 0000	040	SPSpace
33	21	0010 0001	041	!
34	22	0010 0010	042	"
35	23	0010 0011	043	#
36	24	0010 0100	044	$
37	25	0010 0101	045	%
38	26	0010 0110	046	&
39	27	0010 0111	047	'
40	28	0010 1000	050	(
41	29	0010 1001	051	)
42	2A	0010 1010	052	*
43	2B	0010 1011	053	+
44	2C	0010 1100	054	,
45	2D	0010 1101	055	-
46	2E	0010 1110	056	.
47	2F	0010 1111	057	/
48	30	0011 0000	060	0
49	31	0011 0001	061	1
50	32	0011 0010	062	2
51	33	0011 0011	063	3
52	34	0011 0100	064	4
53	35	0011 0101	065	5
54	36	0011 0110	066	6
55	37	0011 0111	067	7
56	38	0011 1000	070	8
57	39	0011 1001	071	9
58	3A	0011 1010	072	:
59	3B	0011 1011	073	;
60	3C	0011 1100	074	<
61	3D	0011 1101	075	=
62	3E	0011 1110	076	>
63	3F	0011 1111	077	?

64–127: capital and lowercase letters

Dec	Hex	Binary	Oct	Char
64	40	0100 0000	100	@
65	41	0100 0001	101	A
66	42	0100 0010	102	B
67	43	0100 0011	103	C
68	44	0100 0100	104	D
69	45	0100 0101	105	E
70	46	0100 0110	106	F
71	47	0100 0111	107	G
72	48	0100 1000	110	H
73	49	0100 1001	111	I
74	4A	0100 1010	112	J
75	4B	0100 1011	113	K
76	4C	0100 1100	114	L
77	4D	0100 1101	115	M
78	4E	0100 1110	116	N
79	4F	0100 1111	117	O
80	50	0101 0000	120	P
81	51	0101 0001	121	Q
82	52	0101 0010	122	R
83	53	0101 0011	123	S
84	54	0101 0100	124	T
85	55	0101 0101	125	U
86	56	0101 0110	126	V
87	57	0101 0111	127	W
88	58	0101 1000	130	X
89	59	0101 1001	131	Y
90	5A	0101 1010	132	Z
91	5B	0101 1011	133	[
92	5C	0101 1100	134	\
93	5D	0101 1101	135	]
94	5E	0101 1110	136	^
95	5F	0101 1111	137	_
96	60	0110 0000	140	`
97	61	0110 0001	141	a
98	62	0110 0010	142	b
99	63	0110 0011	143	c
100	64	0110 0100	144	d
101	65	0110 0101	145	e
102	66	0110 0110	146	f
103	67	0110 0111	147	g
104	68	0110 1000	150	h
105	69	0110 1001	151	i
106	6A	0110 1010	152	j
107	6B	0110 1011	153	k
108	6C	0110 1100	154	l
109	6D	0110 1101	155	m
110	6E	0110 1110	156	n
111	6F	0110 1111	157	o
112	70	0111 0000	160	p
113	71	0111 0001	161	q
114	72	0111 0010	162	r
115	73	0111 0011	163	s
116	74	0111 0100	164	t
117	75	0111 0101	165	u
118	76	0111 0110	166	v
119	77	0111 0111	167	w
120	78	0111 1000	170	x
121	79	0111 1001	171	y
122	7A	0111 1010	172	z
123	7B	0111 1011	173	{
124	7C	0111 1100	174	\|
125	7D	0111 1101	175	}
126	7E	0111 1110	176	~
127	7F	0111 1111	177	DELDelete

128–191: C1 controls and Latin-1 symbols

Dec	Hex	Binary	Oct	Char
128	80	1000 0000	200	PADC1 control: Padding Character (unassigned)
129	81	1000 0001	201	HOPC1 control: High Octet Preset (unassigned)
130	82	1000 0010	202	BPHC1 control: Break Permitted Here
131	83	1000 0011	203	NBHC1 control: No Break Here
132	84	1000 0100	204	INDC1 control: Index
133	85	1000 0101	205	NELC1 control: Next Line
134	86	1000 0110	206	SSAC1 control: Start of Selected Area
135	87	1000 0111	207	ESAC1 control: End of Selected Area
136	88	1000 1000	210	HTSC1 control: Character Tabulation Set
137	89	1000 1001	211	HTJC1 control: Character Tabulation with Justification
138	8A	1000 1010	212	VTSC1 control: Line Tabulation Set
139	8B	1000 1011	213	PLDC1 control: Partial Line Forward
140	8C	1000 1100	214	PLUC1 control: Partial Line Backward
141	8D	1000 1101	215	RIC1 control: Reverse Line Feed
142	8E	1000 1110	216	SS2C1 control: Single Shift Two
143	8F	1000 1111	217	SS3C1 control: Single Shift Three
144	90	1001 0000	220	DCSC1 control: Device Control String
145	91	1001 0001	221	PU1C1 control: Private Use One
146	92	1001 0010	222	PU2C1 control: Private Use Two
147	93	1001 0011	223	STSC1 control: Set Transmit State
148	94	1001 0100	224	CCHC1 control: Cancel Character
149	95	1001 0101	225	MWC1 control: Message Waiting
150	96	1001 0110	226	SPAC1 control: Start of Guarded Area
151	97	1001 0111	227	EPAC1 control: End of Guarded Area
152	98	1001 1000	230	SOSC1 control: Start of String
153	99	1001 1001	231	SGCC1 control: Single Graphic Character Introducer (unassigned)
154	9A	1001 1010	232	SCIC1 control: Single Character Introducer
155	9B	1001 1011	233	CSIC1 control: Control Sequence Introducer
156	9C	1001 1100	234	STC1 control: String Terminator
157	9D	1001 1101	235	OSCC1 control: Operating System Command
158	9E	1001 1110	236	PMC1 control: Privacy Message
159	9F	1001 1111	237	APCC1 control: Application Program Command
160	A0	1010 0000	240	NBSPNo-break space
161	A1	1010 0001	241	¡
162	A2	1010 0010	242	¢
163	A3	1010 0011	243	£
164	A4	1010 0100	244	¤
165	A5	1010 0101	245	¥
166	A6	1010 0110	246	¦
167	A7	1010 0111	247	§
168	A8	1010 1000	250	¨
169	A9	1010 1001	251	©
170	AA	1010 1010	252	ª
171	AB	1010 1011	253	«
172	AC	1010 1100	254	¬
173	AD	1010 1101	255	SHYSoft hyphen
174	AE	1010 1110	256	®
175	AF	1010 1111	257	¯
176	B0	1011 0000	260	°
177	B1	1011 0001	261	±
178	B2	1011 0010	262	²
179	B3	1011 0011	263	³
180	B4	1011 0100	264	´
181	B5	1011 0101	265	µ
182	B6	1011 0110	266	¶
183	B7	1011 0111	267	·
184	B8	1011 1000	270	¸
185	B9	1011 1001	271	¹
186	BA	1011 1010	272	º
187	BB	1011 1011	273	»
188	BC	1011 1100	274	¼
189	BD	1011 1101	275	½
190	BE	1011 1110	276	¾
191	BF	1011 1111	277	¿

192–255: Latin-1 accented letters

Dec	Hex	Binary	Oct	Char
192	C0	1100 0000	300	À
193	C1	1100 0001	301	Á
194	C2	1100 0010	302	Â
195	C3	1100 0011	303	Ã
196	C4	1100 0100	304	Ä
197	C5	1100 0101	305	Å
198	C6	1100 0110	306	Æ
199	C7	1100 0111	307	Ç
200	C8	1100 1000	310	È
201	C9	1100 1001	311	É
202	CA	1100 1010	312	Ê
203	CB	1100 1011	313	Ë
204	CC	1100 1100	314	Ì
205	CD	1100 1101	315	Í
206	CE	1100 1110	316	Î
207	CF	1100 1111	317	Ï
208	D0	1101 0000	320	Ð
209	D1	1101 0001	321	Ñ
210	D2	1101 0010	322	Ò
211	D3	1101 0011	323	Ó
212	D4	1101 0100	324	Ô
213	D5	1101 0101	325	Õ
214	D6	1101 0110	326	Ö
215	D7	1101 0111	327	×
216	D8	1101 1000	330	Ø
217	D9	1101 1001	331	Ù
218	DA	1101 1010	332	Ú
219	DB	1101 1011	333	Û
220	DC	1101 1100	334	Ü
221	DD	1101 1101	335	Ý
222	DE	1101 1110	336	Þ
223	DF	1101 1111	337	ß
224	E0	1110 0000	340	à
225	E1	1110 0001	341	á
226	E2	1110 0010	342	â
227	E3	1110 0011	343	ã
228	E4	1110 0100	344	ä
229	E5	1110 0101	345	å
230	E6	1110 0110	346	æ
231	E7	1110 0111	347	ç
232	E8	1110 1000	350	è
233	E9	1110 1001	351	é
234	EA	1110 1010	352	ê
235	EB	1110 1011	353	ë
236	EC	1110 1100	354	ì
237	ED	1110 1101	355	í
238	EE	1110 1110	356	î
239	EF	1110 1111	357	ï
240	F0	1111 0000	360	ð
241	F1	1111 0001	361	ñ
242	F2	1111 0010	362	ò
243	F3	1111 0011	363	ó
244	F4	1111 0100	364	ô
245	F5	1111 0101	365	õ
246	F6	1111 0110	366	ö
247	F7	1111 0111	367	÷
248	F8	1111 1000	370	ø
249	F9	1111 1001	371	ù
250	FA	1111 1010	372	ú
251	FB	1111 1011	373	û
252	FC	1111 1100	374	ü
253	FD	1111 1101	375	ý
254	FE	1111 1110	376	þ
255	FF	1111 1111	377	ÿ

How to read the chart

Each row of this hex table is one byte. The hex column is the fastest way in: its first digit picks a group of sixteen and its second digit the place within it, so 4A sits in the 4x group, ten rows down. The binary column splits the byte into its two nibbles, and each nibble is exactly one of the hex digits.

The first 128 rows are ASCII, defined in 1963, written up for networks in RFC 20 and still the base of every common encoding. Rows 128 to 255 follow ISO 8859-1, Latin-1, which is also how Unicode numbers its first 256 code points; the Unicode C1 Controls and Latin-1 Supplement chart shows the same range. Windows-1252 differs in the 128–159 range, so text from older Windows software may show curly quotes or € where this chart lists control codes. The control-code names in the Char column are the Unicode name aliases.

Patterns that save a lookup

The digits 0–9 are 30–39, so a digit’s value is its code minus 30.
Capital letters start at 41 and lowercase at 61. The two cases differ by one bit, 20, which is why c ^ 0x20 toggles case in ASCII.
Control codes fill 00–1F; Ctrl plus a letter on a keyboard sends that letter’s code with the top bits cleared, so Ctrl-M is 0D, carriage return.
In Latin-1, many lowercase accented letters are their capital form plus 20 as well: C9 É and E9 é.

A 16 by 16 grid of every byte from 00 to FF, rows labelled by the first hex digit and columns by the second. — Every byte from 00 to FF: row = first hex digit, column = second.

Questions people ask

What is the binary representation of 255?

11111111, eight ones. 255 is FF in hex and 377 in octal, the largest number one byte can hold.

What is the hex code for the letter A?

Capital A is 41 in hex, 65 in decimal and 01000001 in binary; lowercase a is 61. Every capital letter differs from its lowercase form by exactly 20 hex, which is 32.

What are bytes 128 to 159?

In ISO 8859-1 and Unicode they are the C1 control codes, such as NEL (85, next line) and CSI (9B, control sequence introducer), not printable characters. Windows-1252 puts printable characters such as € in most of that range instead.

What is 7F in the chart?

7F is 127, the DEL (delete) control character and the last ASCII code. It is also the largest value of a signed byte.

Last updated October 5, 2026