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Hexadecimal Table

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Hexadecimal notation groups binary data into readable 4-bit chunks. This table maps every byte value from 0x00 to 0xFF to decimal and 8-bit binary. Use alongside our Number System Converter and hex conversion tutorial.

Hex Digits Reference

HexDecimalBinary
0 0 0000
1 1 0001
2 2 0010
3 3 0011
4 4 0100
5 5 0101
6 6 0110
7 7 0111
8 8 1000
9 9 1001
A 10 1010
B 11 1011
C 12 1100
D 13 1101
E 14 1110
F 15 1111

Full Hex Table (00–FF)

Hex Decimal Binary
00 0 00000000
01 1 00000001
02 2 00000010
03 3 00000011
04 4 00000100
05 5 00000101
06 6 00000110
07 7 00000111
08 8 00001000
09 9 00001001
0A 10 00001010
0B 11 00001011
0C 12 00001100
0D 13 00001101
0E 14 00001110
0F 15 00001111
10 16 00010000
11 17 00010001
12 18 00010010
13 19 00010011
14 20 00010100
15 21 00010101
16 22 00010110
17 23 00010111
18 24 00011000
19 25 00011001
1A 26 00011010
1B 27 00011011
1C 28 00011100
1D 29 00011101
1E 30 00011110
1F 31 00011111
20 32 00100000
21 33 00100001
22 34 00100010
23 35 00100011
24 36 00100100
25 37 00100101
26 38 00100110
27 39 00100111
28 40 00101000
29 41 00101001
2A 42 00101010
2B 43 00101011
2C 44 00101100
2D 45 00101101
2E 46 00101110
2F 47 00101111
30 48 00110000
31 49 00110001
32 50 00110010
33 51 00110011
34 52 00110100
35 53 00110101
36 54 00110110
37 55 00110111
38 56 00111000
39 57 00111001
3A 58 00111010
3B 59 00111011
3C 60 00111100
3D 61 00111101
3E 62 00111110
3F 63 00111111
40 64 01000000
41 65 01000001
42 66 01000010
43 67 01000011
44 68 01000100
45 69 01000101
46 70 01000110
47 71 01000111
48 72 01001000
49 73 01001001
4A 74 01001010
4B 75 01001011
4C 76 01001100
4D 77 01001101
4E 78 01001110
4F 79 01001111
50 80 01010000
51 81 01010001
52 82 01010010
53 83 01010011
54 84 01010100
55 85 01010101
56 86 01010110
57 87 01010111
58 88 01011000
59 89 01011001
5A 90 01011010
5B 91 01011011
5C 92 01011100
5D 93 01011101
5E 94 01011110
5F 95 01011111
60 96 01100000
61 97 01100001
62 98 01100010
63 99 01100011
64 100 01100100
65 101 01100101
66 102 01100110
67 103 01100111
68 104 01101000
69 105 01101001
6A 106 01101010
6B 107 01101011
6C 108 01101100
6D 109 01101101
6E 110 01101110
6F 111 01101111
70 112 01110000
71 113 01110001
72 114 01110010
73 115 01110011
74 116 01110100
75 117 01110101
76 118 01110110
77 119 01110111
78 120 01111000
79 121 01111001
7A 122 01111010
7B 123 01111011
7C 124 01111100
7D 125 01111101
7E 126 01111110
7F 127 01111111
80 128 10000000
81 129 10000001
82 130 10000010
83 131 10000011
84 132 10000100
85 133 10000101
86 134 10000110
87 135 10000111
88 136 10001000
89 137 10001001
8A 138 10001010
8B 139 10001011
8C 140 10001100
8D 141 10001101
8E 142 10001110
8F 143 10001111
90 144 10010000
91 145 10010001
92 146 10010010
93 147 10010011
94 148 10010100
95 149 10010101
96 150 10010110
97 151 10010111
98 152 10011000
99 153 10011001
9A 154 10011010
9B 155 10011011
9C 156 10011100
9D 157 10011101
9E 158 10011110
9F 159 10011111
A0 160 10100000
A1 161 10100001
A2 162 10100010
A3 163 10100011
A4 164 10100100
A5 165 10100101
A6 166 10100110
A7 167 10100111
A8 168 10101000
A9 169 10101001
AA 170 10101010
AB 171 10101011
AC 172 10101100
AD 173 10101101
AE 174 10101110
AF 175 10101111
B0 176 10110000
B1 177 10110001
B2 178 10110010
B3 179 10110011
B4 180 10110100
B5 181 10110101
B6 182 10110110
B7 183 10110111
B8 184 10111000
B9 185 10111001
BA 186 10111010
BB 187 10111011
BC 188 10111100
BD 189 10111101
BE 190 10111110
BF 191 10111111
C0 192 11000000
C1 193 11000001
C2 194 11000010
C3 195 11000011
C4 196 11000100
C5 197 11000101
C6 198 11000110
C7 199 11000111
C8 200 11001000
C9 201 11001001
CA 202 11001010
CB 203 11001011
CC 204 11001100
CD 205 11001101
CE 206 11001110
CF 207 11001111
D0 208 11010000
D1 209 11010001
D2 210 11010010
D3 211 11010011
D4 212 11010100
D5 213 11010101
D6 214 11010110
D7 215 11010111
D8 216 11011000
D9 217 11011001
DA 218 11011010
DB 219 11011011
DC 220 11011100
DD 221 11011101
DE 222 11011110
DF 223 11011111
E0 224 11100000
E1 225 11100001
E2 226 11100010
E3 227 11100011
E4 228 11100100
E5 229 11100101
E6 230 11100110
E7 231 11100111
E8 232 11101000
E9 233 11101001
EA 234 11101010
EB 235 11101011
EC 236 11101100
ED 237 11101101
EE 238 11101110
EF 239 11101111
F0 240 11110000
F1 241 11110001
F2 242 11110010
F3 243 11110011
F4 244 11110100
F5 245 11110101
F6 246 11110110
F7 247 11110111
F8 248 11111000
F9 249 11111001
FA 250 11111010
FB 251 11111011
FC 252 11111100
FD 253 11111101
FE 254 11111110
FF 255 11111111

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Frequently Asked Questions

What is hexadecimal?

Hexadecimal (base 16) uses digits 0–9 and letters A–F. One hex digit represents four binary bits, making it compact for programmers.

What is FF in decimal?

FF hex = 15×16 + 15 = 255 decimal = 11111111 binary.

Why do developers use hex?

Hex is more readable than long binary strings. Memory addresses, colour codes (#RRGGBB), and machine code dumps commonly use hex.

How do I convert hex to binary?

Replace each hex digit with its 4-bit binary equivalent. F → 1111, A → 1010.

What comes after 9 in hex?

A (10), B (11), C (12), D (13), E (14), F (15).

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