Conversion of
Number Systems
Welcome to our Number System Conversion tool. With these calculators, you can effortlessly convert numbers between popular number systems, including Binary, Octal, Decimal and Hexadecimal.
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Popular Numeral Systems
Numeral System | Digits in Numeral System | |||||||||||||||
Binary (Base 2) | 0 | 1 | ||||||||||||||
Octal (Base 8) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||||||
Decimal (Base 10) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||||||
Hexadecimal (Base 16) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F |
Binary Number System (Base 2)
A binary number system represents a number in terms of only two numerals, i.e., 0 (zero) and 1 (one). In the word "binary", "bi" means "two". Binary numbers are represented with 2 at their base, for example 10101012.
Octal Number System (Base 8)
Octal number system(Oct) has a base of eight and uses combinations of numerals 0 to 7 to represent any number. 128 is an example of Octal number equal to decimal 10.
Decimal Number System (Base 10)
Decimal number is the most commonly used number system. It is a base 10 number system, uses combinations of numerals 0 to 9 to represent any number. It is widely used in everyday life for representing and manipulating numbers in many cultures and scientific applications.
Hexadecimal Number System (Base 16)
Hexadecimal Number System is a base 16 number system, uses combinations of numerals 0 to 9 and alphabetic characters A to F to represent any number. Hexadecimal numbers are represented with 16 at their base, for example 1AF16.
Decimal, Octal, Hexadecimal, Binary Conversion Chart Table
Dec | Oct | Hex | Bin |
---|---|---|---|
0 | 0 | 0 | 0 |
1 | 1 | 1 | 1 |
2 | 2 | 2 | 10 |
3 | 3 | 3 | 11 |
4 | 4 | 4 | 100 |
5 | 5 | 5 | 101 |
6 | 6 | 6 | 110 |
7 | 7 | 7 | 111 |
8 | 10 | 8 | 1000 |
9 | 11 | 9 | 1001 |
10 | 12 | A | 1010 |
11 | 13 | B | 1011 |
12 | 14 | C | 1100 |
13 | 15 | D | 1101 |
14 | 16 | E | 1110 |
15 | 17 | F | 1111 |
16 | 20 | 10 | 10000 |
17 | 21 | 11 | 10001 |
18 | 22 | 12 | 10010 |
19 | 23 | 13 | 10011 |
20 | 24 | 14 | 10100 |
21 | 25 | 15 | 10101 |
22 | 26 | 16 | 10110 |
23 | 27 | 17 | 10111 |
24 | 30 | 18 | 11000 |
25 | 31 | 19 | 11001 |
26 | 32 | 1A | 11010 |
27 | 33 | 1B | 11011 |
28 | 34 | 1C | 11100 |
29 | 35 | 1D | 11101 |
30 | 36 | 1E | 11110 |
31 | 37 | 1F | 11111 |
32 | 40 | 20 | 100000 |
33 | 41 | 21 | 100001 |
34 | 42 | 22 | 100010 |
35 | 43 | 23 | 100011 |
36 | 44 | 24 | 100100 |
37 | 45 | 25 | 100101 |
38 | 46 | 26 | 100110 |
39 | 47 | 27 | 100111 |
40 | 50 | 28 | 101000 |
41 | 51 | 29 | 101001 |
42 | 52 | 2A | 101010 |
43 | 53 | 2B | 101011 |
44 | 54 | 2C | 101100 |
45 | 55 | 2D | 101101 |
46 | 56 | 2E | 101110 |
47 | 57 | 2F | 101111 |
48 | 60 | 30 | 110000 |
49 | 61 | 31 | 110001 |
50 | 62 | 32 | 110010 |
51 | 63 | 33 | 110011 |
52 | 64 | 34 | 110100 |
53 | 65 | 35 | 110101 |
54 | 66 | 36 | 110110 |
55 | 67 | 37 | 110111 |
56 | 70 | 38 | 111000 |
57 | 71 | 39 | 111001 |
58 | 72 | 3A | 111010 |
59 | 73 | 3B | 111011 |
60 | 74 | 3C | 111100 |
61 | 75 | 3D | 111101 |
62 | 76 | 3E | 111110 |
63 | 77 | 3F | 111111 |
Dec | Oct | Hex | Bin |
---|---|---|---|
64 | 100 | 40 | 1000000 |
65 | 101 | 41 | 1000001 |
66 | 102 | 42 | 1000010 |
67 | 103 | 43 | 1000011 |
68 | 104 | 44 | 1000100 |
69 | 105 | 45 | 1000101 |
70 | 106 | 46 | 1000110 |
71 | 107 | 47 | 1000111 |
72 | 110 | 48 | 1001000 |
73 | 111 | 49 | 1001001 |
74 | 112 | 4A | 1001010 |
75 | 113 | 4B | 1001011 |
76 | 114 | 4C | 1001100 |
77 | 115 | 4D | 1001101 |
78 | 116 | 4E | 1001110 |
79 | 117 | 4F | 1001111 |
80 | 120 | 50 | 1010000 |
81 | 121 | 51 | 1010001 |
82 | 122 | 52 | 1010010 |
83 | 123 | 53 | 1010011 |
84 | 124 | 54 | 1010100 |
85 | 125 | 55 | 1010101 |
86 | 126 | 56 | 1010110 |
87 | 127 | 57 | 1010111 |
88 | 130 | 58 | 1011000 |
89 | 131 | 59 | 1011001 |
90 | 132 | 5A | 1011010 |
91 | 133 | 5B | 1011011 |
92 | 134 | 5C | 1011100 |
93 | 135 | 5D | 1011101 |
94 | 136 | 5E | 1011110 |
95 | 137 | 5F | 1011111 |
96 | 140 | 60 | 1100000 |
97 | 141 | 61 | 1100001 |
98 | 142 | 62 | 1100010 |
99 | 143 | 63 | 1100011 |
100 | 144 | 64 | 1100100 |
101 | 145 | 65 | 1100101 |
102 | 146 | 66 | 1100110 |
103 | 147 | 67 | 1100111 |
104 | 150 | 68 | 1101000 |
105 | 151 | 69 | 1101001 |
106 | 152 | 6A | 1101010 |
107 | 153 | 6B | 1101011 |
108 | 154 | 6C | 1101100 |
109 | 155 | 6D | 1101101 |
110 | 156 | 6E | 1101110 |
111 | 157 | 6F | 1101111 |
112 | 160 | 70 | 1110000 |
113 | 161 | 71 | 1110001 |
114 | 162 | 72 | 1110010 |
115 | 163 | 73 | 1110011 |
116 | 164 | 74 | 1110100 |
117 | 165 | 75 | 1110101 |
118 | 166 | 76 | 1110110 |
119 | 167 | 77 | 1110111 |
120 | 170 | 78 | 1111000 |
121 | 171 | 79 | 1111001 |
122 | 172 | 7A | 1111010 |
123 | 173 | 7B | 1111011 |
124 | 174 | 7C | 1111100 |
125 | 175 | 7D | 1111101 |
126 | 176 | 7E | 1111110 |
127 | 177 | 7F | 1111111 |
Dec | Oct | Hex | Bin |
---|---|---|---|
128 | 200 | 80 | 10000000 |
129 | 201 | 81 | 10000001 |
130 | 202 | 82 | 10000010 |
131 | 203 | 83 | 10000011 |
132 | 204 | 84 | 10000100 |
133 | 205 | 85 | 10000101 |
134 | 206 | 86 | 10000110 |
135 | 207 | 87 | 10000111 |
136 | 210 | 88 | 10001000 |
137 | 211 | 89 | 10001001 |
138 | 212 | 8A | 10001010 |
139 | 213 | 8B | 10001011 |
140 | 214 | 8C | 10001100 |
141 | 215 | 8D | 10001101 |
142 | 216 | 8E | 10001110 |
143 | 217 | 8F | 10001111 |
144 | 220 | 90 | 10010000 |
145 | 221 | 91 | 10010001 |
146 | 222 | 92 | 10010010 |
147 | 223 | 93 | 10010011 |
148 | 224 | 94 | 10010100 |
149 | 225 | 95 | 10010101 |
150 | 226 | 96 | 10010110 |
151 | 227 | 97 | 10010111 |
152 | 230 | 98 | 10011000 |
153 | 231 | 99 | 10011001 |
154 | 232 | 9A | 10011010 |
155 | 233 | 9B | 10011011 |
156 | 234 | 9C | 10011100 |
157 | 235 | 9D | 10011101 |
158 | 236 | 9E | 10011110 |
159 | 237 | 9F | 10011111 |
160 | 240 | A0 | 10100000 |
161 | 241 | A1 | 10100001 |
162 | 242 | A2 | 10100010 |
163 | 243 | A3 | 10100011 |
164 | 244 | A4 | 10100100 |
165 | 245 | A5 | 10100101 |
166 | 246 | A6 | 10100110 |
167 | 247 | A7 | 10100111 |
168 | 250 | A8 | 10101000 |
169 | 251 | A9 | 10101001 |
170 | 252 | AA | 10101010 |
171 | 253 | AB | 10101011 |
172 | 254 | AC | 10101100 |
173 | 255 | AD | 10101101 |
174 | 256 | AE | 10101110 |
175 | 257 | AF | 10101111 |
176 | 260 | B0 | 10110000 |
177 | 261 | B1 | 10110001 |
178 | 262 | B2 | 10110010 |
179 | 263 | B3 | 10110011 |
180 | 264 | B4 | 10110100 |
181 | 265 | B5 | 10110101 |
182 | 266 | B6 | 10110110 |
183 | 267 | B7 | 10110111 |
184 | 270 | B8 | 10111000 |
185 | 271 | B9 | 10111001 |
186 | 272 | BA | 10111010 |
187 | 273 | BB | 10111011 |
188 | 274 | BC | 10111100 |
189 | 275 | BD | 10111101 |
190 | 276 | BE | 10111110 |
191 | 277 | BF | 10111111 |
Dec | Oct | Hex | Bin |
---|---|---|---|
192 | 300 | C0 | 11000000 |
193 | 301 | C1 | 11000001 |
194 | 302 | C2 | 11000010 |
195 | 303 | C3 | 11000011 |
196 | 304 | C4 | 11000100 |
197 | 305 | C5 | 11000101 |
198 | 306 | C6 | 11000110 |
199 | 307 | C7 | 11000111 |
200 | 310 | C8 | 11001000 |
201 | 311 | C9 | 11001001 |
202 | 312 | CA | 11001010 |
203 | 313 | CB | 11001011 |
204 | 314 | CC | 11001100 |
205 | 315 | CD | 11001101 |
206 | 316 | CE | 11001110 |
207 | 317 | CF | 11001111 |
208 | 320 | D0 | 11010000 |
209 | 321 | D1 | 11010001 |
210 | 322 | D2 | 11010010 |
211 | 323 | D3 | 11010011 |
212 | 324 | D4 | 11010100 |
213 | 325 | D5 | 11010101 |
214 | 326 | D6 | 11010110 |
215 | 327 | D7 | 11010111 |
216 | 330 | D8 | 11011000 |
217 | 331 | D9 | 11011001 |
218 | 332 | DA | 11011010 |
219 | 333 | DB | 11011011 |
220 | 334 | DC | 11011100 |
221 | 335 | DD | 11011101 |
222 | 336 | DE | 11011110 |
223 | 337 | DF | 11011111 |
224 | 340 | E0 | 11100000 |
225 | 341 | E1 | 11100001 |
226 | 342 | E2 | 11100010 |
227 | 343 | E3 | 11100011 |
228 | 344 | E4 | 11100100 |
229 | 345 | E5 | 11100101 |
230 | 346 | E6 | 11100110 |
231 | 347 | E7 | 11100111 |
232 | 350 | E8 | 11101000 |
233 | 351 | E9 | 11101001 |
234 | 352 | EA | 11101010 |
235 | 353 | EB | 11101011 |
236 | 354 | EC | 11101100 |
237 | 355 | ED | 11101101 |
238 | 356 | EE | 11101110 |
239 | 357 | EF | 11101111 |
240 | 360 | F0 | 11110000 |
241 | 361 | F1 | 11110001 |
242 | 362 | F2 | 11110010 |
243 | 363 | F3 | 11110011 |
244 | 364 | F4 | 11110100 |
245 | 365 | F5 | 11110101 |
246 | 366 | F6 | 11110110 |
247 | 367 | F7 | 11110111 |
248 | 370 | F8 | 11111000 |
249 | 371 | F9 | 11111001 |
250 | 372 | FA | 11111010 |
251 | 373 | FB | 11111011 |
252 | 374 | FC | 11111100 |
253 | 375 | FD | 11111101 |
254 | 376 | FE | 11111110 |
255 | 377 | FF | 11111111 |