There are multiple methods of representing letters and symbols in binary code. These methods are called encodings. For example, the ASCII encoding assigns unique binary bytes to 128 different characters. This makes it possible to encode any string of text. Below you can find the alphabet letters in binary.

English alphabet letters encoded in binary. Capital (upper case) & lower case (small caps) letters.

• Capital letter = binary code; lower case letter = binary code;
• A = 0100 0001; a = 0110 0001;
• B = 0100 0010; b = 011 00010;
• C = 0100 0011; c = 011 00011;
• D = 0100 0100; d = 011 00100;
• E = 0100 0101; e = 0110 0101;
• F = 0100 0110; f = 0110 0110;
• G = 0100 0111; g = 0110 0111;
• H = 0100 1000; h = 0110 1000;
• I = 0100 1001; i = 0110 1001;
• J = 0100 1010; j = 0110 1010;
• K = 0100 1011; k = 0110 1011;
• L = 0100 1100; l = 0110 1100;

• M = 0100 1101; m = 0110 1101;
• N = 0100 1110; n = 0110 1110;
• O = 0100 1111; o = 0110 1111;
• P = 0101 0000; p = 0111 0000;
• Q = 0101 0001; q = 0111 0001;
• R = 0101 0010; r = 0111 0010;
• S = 0101 0011; s = 0111 0011;
• T = 0101 0100; t = 0111 0100;
• U = 0101 0101; u = 0111 0101;
• V = 0101 0110; v = 0111 0110;
• W = 0101 0111; w = 0111 0111;
• X = 0101 1000; x = 0111 1000;
• Y = 0101 1001; y = 0111 1001;
• Z = 0101 1010; z = 0111 1010;
• Note: spaces were used inside the binary codes, grouping the digits by four, for better readability.

Numbers in the binary system code.

0 and 1. How computers work. Bits and bytes.