ASCII Table & ASCII Converter

Use our free ASCII Table and ASCII Converter to convert text into ASCII codes or convert ASCII codes back into text. You can also find the decimal, hexadecimal, and binary values for individual ASCII characters.

Our ASCII table provides a complete reference for ASCII codes and characters from 0 to 255, including decimal, binary, and hexadecimal values. Use the table to quickly find the ASCII code for letters, numbers, symbols, and control characters.

ASCII (American Standard Code for Information Interchange) is a character encoding system used by computers and digital devices to represent text. Each character is assigned a numeric value that can be represented in decimal, binary, and hexadecimal formats.

Whether you are a programmer, developer, student, or IT professional, this ASCII code table makes it easy to look up character values and understand how text is represented in computer systems.

🔹 What is an ASCII Table?

An ASCII table is a reference chart that shows the numeric codes assigned to characters in the ASCII character set. ASCII stands for American Standard Code for Information Interchange and was developed to provide a standardized way for computers and other digital devices to represent text.

Each ASCII character is assigned a unique value. These values can be displayed in different number systems, including decimal, binary, and hexadecimal. For example, the uppercase letter A has the ASCII value 65 in decimal, 01000001 in binary, and 41 in hexadecimal.

ASCII codes are commonly used in programming, computer systems, data processing, networking, and text encoding. An ASCII table provides a quick way to look up these values when working with characters, symbols, and control codes.

This ASCII code table includes values from 0 to 255, making it useful as a quick reference for both standard ASCII characters and extended character codes.

ASCII Converter

Convert text to ASCII codes and ASCII codes back to text with our free ASCII converter. You can also find decimal, hexadecimal, and binary values for individual characters.

ASCII Converter

Convert text to ASCII codes, convert ASCII codes back to text, or find the ASCII, hexadecimal, and binary values of individual characters.

Enter text

Result

Decimal

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Hexadecimal

—

Binary

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Example: The character A has the ASCII value 65 in decimal, 41 in hexadecimal, and 01000001 in binary.

How to Use the ASCII Converter

Our ASCII Converter makes it easy to convert between text and ASCII codes. You can use the tool to convert text into ASCII values, convert ASCII codes back into readable text, or find the ASCII, hexadecimal, and binary values of individual characters.

Text to ASCII

Select Text → ASCII and enter the text you want to convert. Click Convert to see the ASCII decimal codes for each character.

For example, the word Hello is converted to:

72 101 108 108 111

The converter also displays the corresponding hexadecimal and binary values.

ASCII to Text

To convert ASCII codes back into text, select ASCII → Text and enter the ASCII decimal values separated by spaces.

For example:

72 101 108 108 111

is converted back to:

Hello

This can be useful when working with ASCII codes in programming, computer science, data processing, or troubleshooting.

Character to ASCII

The Character → ASCII option lets you find the code values for individual characters. Enter a character such as A, and the converter will show its different representations:

Decimal: 65
Hexadecimal: 41
Binary: 01000001

You can also enter multiple characters to see the corresponding values for each character.

Decimal, Hexadecimal and Binary ASCII Values

ASCII characters can be represented in several number systems. The standard ASCII range uses decimal values from 0 to 127. For example, the uppercase letter A has the decimal ASCII value 65, hexadecimal value 41, and binary value 01000001.

Use the converter when you need to quickly switch between these representations without calculating the values manually.

Copy Your Result

After converting your text or ASCII codes, use the Copy button to copy the result to your clipboard. This makes it easy to use the converted values in programming code, documents, websites, or other applications.

The converter works directly in your browser, so your text does not need to be sent to an external service.

🔹 How to Use the ASCII Table

The ASCII table makes it easy to find the numeric code associated with a specific character. Each row shows the same character in several different formats.

Decimal: The standard base-10 ASCII code, such as 65 for the letter A.
Binary: The 8-bit binary representation of the ASCII value, such as 01000001 for A.
Hexadecimal: The base-16 representation, such as 41 for A.
Character: The letter, number, symbol, or control character represented by the code.

For example, if you need to find the ASCII code for the uppercase letter Z, look for Z in the Character column. The corresponding values are 90 in decimal, 01011010 in binary, and 5A in hexadecimal.

You can use the table in either direction: find a character to determine its ASCII code, or find a numeric ASCII code to determine which character it represents. This is particularly useful when programming, debugging code, converting character values, or working with data and text encoding.

🔹 ASCII Character Ranges: 0–127 and 128–255

The standard ASCII character set contains 128 values, from 0 to 127. These values include control characters, numbers, uppercase and lowercase letters, punctuation marks, and other common symbols.

The values from 128 to 255 are commonly referred to as extended ASCII, but they are not part of the original ASCII standard. Different character encodings use this range for different additional characters, so the meaning of a value above 127 can vary depending on the encoding.

Standard ASCII: 0–127

The standard ASCII range contains:

0–31: Control characters
32: Space
33–47: Punctuation and symbols
48–57: Numbers 0–9
65–90: Uppercase letters A–Z
97–122: Lowercase letters a–z
123–127: Additional symbols and control characters

Extended ASCII: 128–255

Values from 128 to 255 are commonly used for additional characters such as accented letters and symbols. However, there is no single universal extended ASCII character set. Encodings such as Windows-1252 and ISO-8859-1 assign different characters to some of these values.

For modern applications, Unicode and UTF-8 are generally used instead of extended ASCII because they support characters from many languages and writing systems.

🌟 ASCII Code Table: Decimal, Binary, Hexadecimal and Characters

The table below provides a quick reference for ASCII codes in decimal, binary, and hexadecimal formats. Standard ASCII covers values from 0 to 127, including control characters, letters, numbers, punctuation, and common symbols.

The table also includes values from 128 to 255 for reference. These values are not part of the original ASCII standard and their character representation depends on the character encoding being used.

Decimal	Binary	Hexadecimal	Character/Description
0	00000000	00	NUL
1	00000001	01	SOH
2	00000010	02	STX
3	00000011	03	ETX
4	00000100	04	EOT
5	00000101	05	ENQ
6	00000110	06	ACK
7	00000111	07	BEL
8	00001000	08	BS
9	00001001	09	TAB
10	00001010	0A	LF
11	00001011	0B	VT
12	00001100	0C	FF
13	00001101	0D	CR
14	00001110	0E	SO
15	00001111	0F	SI
16	00010000	10	DLE
17	00010001	11	DC1
18	00010010	12	DC2
19	00010011	13	DC3
20	00010100	14	DC4
21	00010101	15	NAK
22	00010110	16	SYN
23	00010111	17	ETB
24	00011000	18	CAN
25	00011001	19	EM
26	00011010	1A	SUB
27	00011011	1B	ESC
28	00011100	1C	FS
29	00011101	1D	GS
30	00011110	1E	RS
31	00011111	1F	US
32	00100000	20	SPACE
33	00100001	21	!
34	00100010	22	“
35	00100011	23	#
36	00100100	24	$
37	00100101	25	%
38	00100110	26	&
39	00100111	27	‘
40	00101000	28	(
41	00101001	29	)
42	00101010	2A	*
43	00101011	2B	+
44	00101100	2C	,
45	00101101	2D	–
46	00101110	2E	.
47	00101111	2F	/
48	00110000	30	0
49	00110001	31	1
50	00110010	32	2
51	00110011	33	3
52	00110100	34	4
53	00110101	35	5
54	00110110	36	6
55	00110111	37	7
56	00111000	38	8
57	00111001	39	9
58	00111010	3A	:
59	00111011	3B	;
60	00111100	3C	<
61	00111101	3D	=
62	00111110	3E	>
63	00111111	3F	?
64	01000000	40	@
65	01000001	41	A
66	01000010	42	B
67	01000011	43	C
68	01000100	44	D
69	01000101	45	E
70	01000110	46	F
71	01000111	47	G
72	01001000	48	H
73	01001001	49	I
74	01001010	4A	J
75	01001011	4B	K
76	01001100	4C	L
77	01001101	4D	M
78	01001110	4E	N
79	01001111	4F	O
80	01010000	50	P
81	01010001	51	Q
82	01010010	52	R
83	01010011	53	S
84	01010100	54	T
85	01010101	55	U
86	01010110	56	V
87	01010111	57	W
88	01011000	58	X
89	01011001	59	Y
90	01011010	5A	Z
91	01011011	5B	[
92	01011100	5C	\
93	01011101	5D	]
94	01011110	5E	^
95	01011111	5F	_
96	01100000	60	`
97	01100001	61	a
98	01100010	62	b
99	01100011	63	c
100	01100100	64	d
101	01100101	65	e
102	01100110	66	f
103	01100111	67	g
104	01101000	68	h
105	01101001	69	i
106	01101010	6A	j
107	01101011	6B	k
108	01101100	6C	l
109	01101101	6D	m
110	01101110	6E	n
111	01101111	6F	o
112	01110000	70	p
113	01110001	71	q
114	01110010	72	r
115	01110011	73	s
116	01110100	74	t
117	01110101	75	u
118	01110110	76	v
119	01110111	77	w
120	01111000	78	x
121	01111001	79	y
122	01111010	7A	z
123	01111011	7B	{
124	01111100	7C	\|
125	01111101	7D	}
126	01111110	7E	~
127	01111111	7F	DEL

🔹 Extended ASCII: Codes 128–255

The values from 128 to 255 are not part of the original ASCII standard. They are often called extended ASCII, but there is no single universal character set for these values.

Different character encodings assign different characters to the same numeric values. For example, Windows-1252 and ISO-8859-1 use the 128–255 range differently in some positions.

For this reason, the values from 128 to 255 are shown below as hexadecimal and binary codes without assigning a specific character. This avoids implying that these values represent the same characters in every encoding.

For modern text processing, Unicode and UTF-8 are generally preferred because they provide a consistent way to represent characters from many languages and writing systems.

Decimal	Binary	Hexadecimal
128	10000000	80
129	10000001	81
130	10000010	82
131	10000011	83
132	10000100	84
133	10000101	85
134	10000110	86
135	10000111	87
136	10001000	88
137	10001001	89
138	10001010	8A
139	10001011	8B
140	10001100	8C
141	10001101	8D
142	10001110	8E
143	10001111	8F
144	10010000	90
145	10010001	91
146	10010010	92
147	10010011	93
148	10010100	94
149	10010101	95
150	10010110	96
151	10010111	97
152	10011000	98
153	10011001	99
154	10011010	9A
155	10011011	9B
156	10011100	9C
157	10011101	9D
158	10011110	9E
159	10011111	9F
160	10100000	A0
161	10100001	A1
162	10100010	A2
163	10100011	A3
164	10100100	A4
165	10100101	A5
166	10100110	A6
167	10100111	A7
168	10101000	A8
169	10101001	A9
170	10101010	AA
171	10101011	AB
172	10101100	AC
173	10101101	AD
174	10101110	AE
175	10101111	AF
176	10110000	B0
177	10110001	B1
178	10110010	B2
179	10110011	B3
180	10110100	B4
181	10110101	B5
182	10110110	B6
183	10110111	B7
184	10111000	B8
185	10111001	B9
186	10111010	BA
187	10111011	BB
188	10111100	BC
189	10111101	BD
190	10111110	BE
191	10111111	BF
192	11000000	C0
193	11000001	C1
194	11000010	C2
195	11000011	C3
196	11000100	C4
197	11000101	C5
198	11000110	C6
199	11000111	C7
200	11001000	C8
201	11001001	C9
202	11001010	CA
203	11001011	CB
204	11001100	CC
205	11001101	CD
206	11001110	CE
207	11001111	CF
208	11010000	D0
209	11010001	D1
210	11010010	D2
211	11010011	D3
212	11010100	D4
213	11010101	D5
214	11010110	D6
215	11010111	D7
216	11011000	D8
217	11011001	D9
218	11011010	DA
219	11011011	DB
220	11011100	DC
221	11011101	DD
222	11011110	DE
223	11011111	DF
224	11100000	E0
225	11100001	E1
226	11100010	E2
227	11100011	E3
228	11100100	E4
229	11100101	E5
230	11100110	E6
231	11100111	E7
232	11101000	E8
233	11101001	E9
234	11101010	EA
235	11101011	EB
236	11101100	EC
237	11101101	ED
238	11101110	EE
239	11101111	EF
240	11110000	F0
241	11110001	F1
242	11110010	F2
243	11110011	F3
244	11110100	F4
245	11110101	F5
246	11110110	F6
247	11110111	F7
248	11111000	F8
249	11111001	F9
250	11111010	FA
251	11111011	FB
252	11111100	FC
253	11111101	FD
254	11111110	FE
255	11111111	FF

🔹 ASCII vs Unicode: What Is the Difference?

ASCII and Unicode are both character encoding standards, but they serve different purposes. ASCII uses 7 bits to represent 128 standard characters, including English letters, numbers, punctuation, symbols, and control characters.

Unicode is a much larger character standard designed to represent characters from languages and writing systems around the world. It includes Latin letters as well as characters such as Greek, Cyrillic, Arabic, Chinese, Japanese, and many others.

UTF-8 is a popular Unicode encoding used on the web and in modern software. UTF-8 is backward compatible with standard ASCII, which means the first 128 Unicode characters use the same values as ASCII.

For example, the letter A has the ASCII value 65 and is represented by the same byte in UTF-8. Characters outside the standard ASCII range require additional bytes when encoded using UTF-8.

ASCII vs Unicode vs UTF-8

ASCII: A 7-bit character set containing 128 standard characters.
Unicode: A universal character standard supporting characters from many writing systems.
UTF-8: A variable-length encoding used to store and transmit Unicode characters.

For modern websites and applications, UTF-8 is generally the preferred text encoding, while ASCII remains useful as a fundamental reference for understanding character codes and computer text representation.

🔹 Common ASCII Codes

Some ASCII codes are particularly useful when working with programming, text processing, and data. The following values are among the most commonly referenced ASCII characters:

Character	Decimal	Hexadecimal	Binary
Space	32	20	00100000
0	48	30	00110000
9	57	39	00111001
A	65	41	01000001
Z	90	5A	01011010
a	97	61	01100001
z	122	7A	01111010
!	33	21	00100001
?	63	3F	00111111
@	64	40	01000000
LF	10	0A	00001010
CR	13	0D	00001101

These common ASCII values can be useful when writing or debugging programs, working with text files, processing data, or converting between character representations.

🔹 ASCII Codes for Letters and Numbers

ASCII assigns consecutive numeric codes to the English alphabet and the digits 0–9. This makes it easy to identify the ASCII value of a letter or number.

ASCII Codes for Uppercase Letters

The uppercase letters A–Z have decimal ASCII values from 65 to 90. For example, A = 65, B = 66, and Z = 90.

ASCII Codes for Lowercase Letters

The lowercase letters a–z have decimal ASCII values from 97 to 122. For example, a = 97, b = 98, and z = 122.

ASCII Codes for Numbers

The characters 0–9 have decimal ASCII values from 48 to 57. The character 0 has the ASCII value 48, while 9 has the ASCII value 57.

It’s important to remember that the ASCII code for a number character is different from the numeric value of the number itself. For example, the character “5” has an ASCII code of 53, not 5.

This pattern is useful in programming and text processing because ASCII values can be used to compare, sort, convert, and manipulate characters.

Frequently Asked Questions About ASCII

What is ASCII?

ASCII stands for American Standard Code for Information Interchange. It is a character encoding standard that assigns numeric values to letters, numbers, symbols, and control characters.

What is the ASCII code range?

Standard ASCII contains 128 values, from 0 to 127. Values from 128 to 255 are often called extended ASCII, but their character representation depends on the encoding being used.

What is the ASCII code for A?

The uppercase letter A has an ASCII code of 65 in decimal, 41 in hexadecimal, and 01000001 in binary.

What is the ASCII code for a?

The lowercase letter a has an ASCII code of 97 in decimal, 61 in hexadecimal, and 01100001 in binary.

What is the ASCII code for 0?

The character 0 has an ASCII code of 48 in decimal, 30 in hexadecimal, and 00110000 in binary. The ASCII code represents the character “0”, not the numeric value zero.

What is the difference between ASCII and Unicode?

ASCII contains 128 standard characters, while Unicode is designed to represent characters from languages and writing systems around the world. UTF-8 is a widely used encoding for Unicode and is backward compatible with standard ASCII.

What is the difference between ASCII and UTF-8?

ASCII is a 7-bit character set containing 128 standard characters. UTF-8 is a variable-length encoding for Unicode that uses the same byte values as ASCII for the first 128 characters.

Why are ASCII codes useful?

ASCII codes provide a standardized way to represent characters as numbers. They are useful in programming, data processing, text encoding, debugging, and computer systems.

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