Binary Alphabet Chart
Complete chart of all alphabet letters in 8-bit binary code.
Uppercase Letters (A-Z)
A
01000001
(65)
B
01000010
(66)
C
01000011
(67)
D
01000100
(68)
E
01000101
(69)
F
01000110
(70)
G
01000111
(71)
H
01001000
(72)
I
01001001
(73)
J
01001010
(74)
K
01001011
(75)
L
01001100
(76)
M
01001101
(77)
N
01001110
(78)
O
01001111
(79)
P
01010000
(80)
Q
01010001
(81)
R
01010010
(82)
S
01010011
(83)
T
01010100
(84)
U
01010101
(85)
V
01010110
(86)
W
01010111
(87)
X
01011000
(88)
Y
01011001
(89)
Z
01011010
(90)
Lowercase Letters (a-z)
a
01100001
(97)
b
01100010
(98)
c
01100011
(99)
d
01100100
(100)
e
01100101
(101)
f
01100110
(102)
g
01100111
(103)
h
01101000
(104)
i
01101001
(105)
j
01101010
(106)
k
01101011
(107)
l
01101100
(108)
m
01101101
(109)
n
01101110
(110)
o
01101111
(111)
p
01110000
(112)
q
01110001
(113)
r
01110010
(114)
s
01110011
(115)
t
01110100
(116)
u
01110101
(117)
v
01110110
(118)
w
01110111
(119)
x
01111000
(120)
y
01111001
(121)
z
01111010
(122)
How Binary Alphabet Works
In ASCII encoding, each letter is assigned a unique number. Uppercase letters range from 65 (A) to 90 (Z), and lowercase from 97 (a) to 122 (z). These numbers are then represented in binary (base-2). Notice that lowercase letters are exactly 32 more than their uppercase counterparts — which in binary means only one bit difference (bit 5).