Binary Converter – Free Binary Translator & DecimalSkip to the binary translatorusENusEnglish<br>idIndonesia<br>esEspañol<br>brPortuguês<br>frFrançais<br>deDeutsch<br>trTürkçe<br>itItaliano<br>kr한국어<br>myBahasa Melayu<br>ruРусский
Free Binary Converter & Translator<br>Type text to see it as binary, or paste binary to read it back as text (ASCII). Conversions run on your device as you type, so results are instant and your text stays yours.
FromTextBinaryDecimalHexadecimalOctalToTextBinaryDecimalHexadecimalOctal
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Converts as you type<br>Text, decimal, hex and octal<br>Works offline on your device
Binary to Decimal, Hex & Octal Converter<br>Convert binary to decimal, decimal to binary, hexadecimal to binary and octal — in any direction. Type a number in any field and the other three update as you type.
Binary
Decimal
Hexadecimal
Octal
Binary Calculator<br>Add, subtract, multiply or divide two binary numbers. Results are shown in binary and decimal.
First binary number<br>Operation+ Add− Subtract× Multiply÷ Divide<br>Second binary number
Result in binary—<br>Result in decimal—
Division is integer division — the remainder is dropped.
Common Binary Conversions<br>Decimal to binary conversion examples — the numbers people look up most, converted to binary.
0 in binary0<br>1 in binary1<br>2 in binary10<br>3 in binary11<br>4 in binary100<br>5 in binary101<br>6 in binary110<br>7 in binary111<br>8 in binary1000<br>9 in binary1001<br>10 in binary1010<br>11 in binary1011<br>12 in binary1100<br>13 in binary1101<br>14 in binary1110<br>15 in binary1111<br>16 in binary10000<br>17 in binary10001<br>18 in binary10010<br>19 in binary10011<br>20 in binary10100<br>32 in binary100000<br>50 in binary110010<br>64 in binary1000000<br>100 in binary1100100<br>101 in binary1100101<br>128 in binary10000000<br>255 in binary11111111<br>256 in binary100000000<br>1000 in binary1111101000<br>1024 in binary10000000000
Binary Alphabet & ASCII Table<br>Every letter and digit with its ASCII code and 8-bit binary value.
A–Z<br>Uppercase letters A to Z in ASCII and binaryCharacterASCIIBinaryA6501000001B6601000010C6701000011D6801000100E6901000101F7001000110G7101000111H7201001000I7301001001J7401001010K7501001011L7601001100M7701001101N7801001110O7901001111P8001010000Q8101010001R8201010010S8301010011T8401010100U8501010101V8601010110W8701010111X8801011000Y8901011001Z9001011010
a–z<br>Lowercase letters a to z in ASCII and binaryCharacterASCIIBinarya9701100001b9801100010c9901100011d10001100100e10101100101f10201100110g10301100111h10401101000i10501101001j10601101010k10701101011l10801101100m10901101101n11001101110o11101101111p11201110000q11301110001r11401110010s11501110011t11601110100u11701110101v11801110110w11901110111x12001111000y12101111001z12201111010
0–9<br>Digits 0 to 9 in ASCII and binaryCharacterASCIIBinary04800110000149001100012500011001035100110011452001101005530011010165400110110755001101118560011100095700111001
How to Convert Binary<br>Three methods, three steps each, with a worked example.
Convert text to binary<br>Take one character Start with a single character, for example the letter A.<br>Find its ASCII code Look up the character in the ASCII table. A is 65.<br>Write the code in 8 bits Convert 65 to binary and pad it to eight digits: 01000001.
Convert binary to decimal<br>Give each digit its place value Reading 1101 from the right, the places are 1, 2, 4 and 8.<br>Keep the places where the digit is 1 1101 has a 1 in the 8, 4 and 1 places. The 2 place holds a 0, so drop it.<br>Add the places together 8 + 4 + 1 = 13. So 1101 in binary is 13 in decimal.<br>Worked example 1101 = 13
Convert decimal to binary<br>Divide by 2 and note the remainder Divide the decimal number by 2. For 13, that is 6 remainder 1.<br>Repeat until you reach 0 Keep halving the quotient: 6→3 r0, 3→1 r1, 1→0 r1.<br>Read the remainders in reverse Reading the remainders from the last division back to the first gives 1101. So 13 is 1101.<br>Worked example 13 = 1101
Frequently Asked Questions<br>Answers to the questions people ask most about binary conversion.
AllBasicsConversionASCIIAbout<br>What is binary code?Binary code writes numbers and text using only two digits, 0 and 1. Each digit is a bit. Computers use binary because a circuit has two stable states, on and off, which map directly onto 1 and 0.<br>How do I convert text to binary?Take each character and find its ASCII code, then write that code as an 8-bit binary number. The letter A is ASCII 65, which is 01000001. The translator above does this for a whole text as you type.<br>How do I convert binary to decimal?Give each binary digit a place value, doubling from right to left: 1, 2, 4, 8 and so on. Add up the place values wherever the digit is 1. For 1101 that is 8 + 4 + 1 = 13.<br>How do I read binary code?Split the code into groups of eight digits. Convert each group to a decimal number, then look that number up in the ASCII table to get the character. Read the characters in order to get the original text.<br>What is the binary alphabet?The binary alphabet is the set of letters written as 8-bit ASCII values. A is...