Excel column letter to number quick reference

Here is a quick reference for Excel column letter to number mapping.

Column Letter	Column Number
A	1
B	2
C	3
D	4
E	5
F	6
G	7
H	8
I	9
J	10
K	11
L	12
M	13
N	14
O	15
P	16
Q	17
R	18
S	19
T	20
U	21
V	22
W	23
X	24
Y	25
Z	26
AA	27
AB	28
AC	29
AD	30
AE	31
AF	32
AG	33
AH	34
AI	35
AJ	36
AK	37
AL	38
AM	39
AN	40
AO	41
AP	42
AQ	43
AR	44
AS	45
AT	46
AU	47
AV	48
AW	49
AX	50
AY	51
AZ	52
BA	53
BB	54
BC	55
BD	56
BE	57
BF	58
BG	59
BH	60
BI	61
BJ	62
BK	63
BL	64
BM	65
BN	66
BO	67
BP	68
BQ	69
BR	70
BS	71
BT	72
BU	73
BV	74
BW	75
BX	76
BY	77
BZ	78
CA	79
CB	80
CC	81
CD	82
CE	83
CF	84
CG	85
CH	86
CI	87
CJ	88
CK	89
CL	90
CM	91
CN	92
CO	93
CP	94
CQ	95
CR	96
CS	97
CT	98
CU	99
CV	100
CW	101
CX	102
CY	103
CZ	104

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Vishal Monpara is a full stack Solution Developer/Architect with 12 years of experience primarily using Microsoft stack. He is currently working in Retail industry and moving 1’s and 0’s from geographically dispersed hard disks to geographically dispersed user’s mind leveraging geographically dispersed team members.

Column Letter	Column Number
A	1
B	2
C	3
D	4
E	5
F	6
G	7
H	8
I	9
J	10
K	11
L	12
M	13
N	14
O	15
P	16
Q	17
R	18
S	19
T	20
U	21
V	22
W	23
X	24
Y	25
Z	26
AA	27
AB	28
AC	29
AD	30
AE	31
AF	32
AG	33
AH	34
AI	35
AJ	36
AK	37
AL	38
AM	39
AN	40
AO	41
AP	42
AQ	43
AR	44
AS	45
AT	46
AU	47
AV	48
AW	49
AX	50
AY	51
AZ	52
BA	53
BB	54
BC	55
BD	56
BE	57
BF	58
BG	59
BH	60
BI	61
BJ	62
BK	63
BL	64
BM	65
BN	66
BO	67
BP	68
BQ	69
BR	70
BS	71
BT	72
BU	73
BV	74
BW	75
BX	76
BY	77
BZ	78
CA	79
CB	80
CC	81
CD	82
CE	83
CF	84
CG	85
CH	86
CI	87
CJ	88
CK	89
CL	90
CM	91
CN	92
CO	93
CP	94
CQ	95
CR	96
CS	97
CT	98
CU	99
CV	100
CW	101
CX	102
CY	103
CZ	104

Column Letter	Column Number
A	1
B	2
C	3
D	4
E	5
F	6
G	7
H	8
I	9
J	10
K	11
L	12
M	13
N	14
O	15
P	16
Q	17
R	18
S	19
T	20
U	21
V	22
W	23
X	24
Y	25
Z	26
AA	27
AB	28
AC	29
AD	30
AE	31
AF	32
AG	33
AH	34
AI	35
AJ	36
AK	37
AL	38
AM	39
AN	40
AO	41
AP	42
AQ	43
AR	44
AS	45
AT	46
AU	47
AV	48
AW	49
AX	50
AY	51
AZ	52
BA	53
BB	54
BC	55
BD	56
BE	57
BF	58
BG	59
BH	60
BI	61
BJ	62
BK	63
BL	64
BM	65
BN	66
BO	67
BP	68
BQ	69
BR	70
BS	71
BT	72
BU	73
BV	74
BW	75
BX	76
BY	77
BZ	78
CA	79
CB	80
CC	81
CD	82
CE	83
CF	84
CG	85
CH	86
CI	87
CJ	88
CK	89
CL	90
CM	91
CN	92
CO	93
CP	94
CQ	95
CR	96
CS	97
CT	98
CU	99
CV	100
CW	101
CX	102
CY	103
CZ	104

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Column Letter	Column Number
A	1
B	2
C	3
D	4
E	5
F	6
G	7
H	8
I	9
J	10
K	11
L	12
M	13
N	14
O	15
P	16
Q	17
R	18
S	19
T	20
U	21
V	22
W	23
X	24
Y	25
Z	26
AA	27
AB	28
AC	29
AD	30
AE	31
AF	32
AG	33
AH	34
AI	35
AJ	36
AK	37
AL	38
AM	39
AN	40
AO	41
AP	42
AQ	43
AR	44
AS	45
AT	46
AU	47
AV	48
AW	49
AX	50
AY	51
AZ	52
BA	53
BB	54
BC	55
BD	56
BE	57
BF	58
BG	59
BH	60
BI	61
BJ	62
BK	63
BL	64
BM	65
BN	66
BO	67
BP	68
BQ	69
BR	70
BS	71
BT	72
BU	73
BV	74
BW	75
BX	76
BY	77
BZ	78
CA	79
CB	80
CC	81
CD	82
CE	83
CF	84
CG	85
CH	86
CI	87
CJ	88
CK	89
CL	90
CM	91
CN	92
CO	93
CP	94
CQ	95
CR	96
CS	97
CT	98
CU	99
CV	100
CW	101
CX	102
CY	103
CZ	104