The Wolfram Language conveniently handles currency and unit characters, supporting both native keyboard entry and explicit special character specifications.

Currency Characters

€ \[Euro]  ▪  £ \[Sterling]  ▪  ¥ \[Yen]  ▪  ƒ \[Florin]  ▪  ¢ \[Cent]  ▪  ¤ \[Currency]

Units & Related Characters

µ \[Micro]  ▪  ℧ \[Mho]  ▪  Å \[Angstrom]  ▪  ℏ \[HBar]

° \[Degree]  ▪   \[ImaginaryJ]

Chemistry

⇌ \[Equilibrium]  ▪  ⇋ \[ReverseEquilibrium]  ▪  ⥮ \[UpEquilibrium]

Astronomy / Biology

☿  ▪  ♀  ▪    ▪  ♂  ▪  ♃  ▪  ♄  ▪  ⛢  ▪  ♆  ▪  ♇

♀ \[Venus]  ▪  ♂ \[Mars]

Music

♩ \[QuarterNote]  ▪  ♪ \[EighthNote]  ▪  ♫ \[BeamedEighthNote]  ▪  ♬ \[BeamedSixteenthNote]

♯ \[Sharp]  ▪  ♭ \[Flat]  ▪  ♮ \[Natural]

Cards

♣ \[ClubSuit]  ▪  ♢ \[DiamondSuit]  ▪  ♡ \[HeartSuit]  ▪  ♠ \[SpadeSuit]

Chess

\[BlackBishop]  ▪  \[BlackKing]  ▪  \[BlackKnight]  ▪  \[BlackPawn]  ▪  \[BlackQueen]  ▪  \[BlackRook]  ▪  \[WhiteBishop]  ▪  \[WhiteKing]  ▪  \[WhiteKnight]  ▪  \[WhitePawn]  ▪  \[WhiteQueen]  ▪  \[WhiteRook]