Circle of fifths (major/minor)

C

none

G

One sharp. #: F

D

Two sharps. #: F, C

A

Three sharps. #: F, C, G

E

Four sharps. #: F, C, G, D

B

Five sharps. #: F, C, G, D, A

F#

Six sharps. #: F, C, G, D, A, E

C#

Seven sharps. #: F, C, G, D, A, E, B

F

One flat. b: B

Bb

Two flats. b: B, E

Eb

Three flats. b: B, E, A

Ab

Four flats. b: B, E, A, D

Db

Five flats. b: B, E, A, D, G

Gb

Six flats. b: B, E, A, D, G, C

Cb

Seven flats. b: B, E, A, D, G, C, F

a

none.

e

One sharp. #: F

b

Two sharps. #: F, C

f#

Three sharps. #: F, C, G

c#

Four sharps. #: F, C, G, D

g#

Five sharps. #: F, C, G, D, A

d#

Six sharps. #: F, C, G, D, A, E

a#

Seven sharps. #: F, C, G, D, A, E, B

d

One flat. b: B

g

Two flats. b: B, E

c

Three flats. b: B, E, A

f

Four flats. b: B, E, A, D

bflat

Five flats. b: B, E, A, D, G

eb

Six flats. b: B, E, A, D, G, C

ab

Seven flats. b: B, E, A, D, G, C, F