Short answer: Contralto and alto are not the same thing. A contralto is a voice type: the lowest female singing voice, with a typical range of about F3 to F5 and a dark, rich sound. Alto is a choir part: the lower female line in SATB music, about G3 to D5. Contraltos almost always sing alto, but most altos are actually mezzo-sopranos, the more common middle female voice.
Alto Part vs Contralto and Mezzo-Soprano
Typical ranges: Mezzo-soprano A3–A5, Contralto F3–F5, Alto G3–D5. Choose your lowest and highest comfortable notes to see which fits you.
- Mezzo-soprano A3–A5 · 220 Hz–880 HzMiddle female voice; warm and full
- Contralto F3–F5 · 175 Hz–698 HzLowest female voice; dark and rich
- Alto G3–D5 · 196 Hz–587 HzLower female choir part in SATB music
Typical classical ranges; many voices go beyond them. Range is one part of voice type: tone colour, tessitura and where your voice changes register matter too.
Alto vs Contralto at a Glance
| Alto | Contralto | |
|---|---|---|
| What it is | A choir part (a line in the music) | A voice type (a kind of voice) |
| Typical range | G3–D5 | F3–F5 |
| Who sings it | Mezzo-sopranos, contraltos, countertenors | Contraltos only |
| Sound | Varies with the singer | Dark, rich, heavy |
| Where the word is used | Choirs and ensembles | Solo classical singing and opera |
What Is a Contralto?
The contralto is the lowest classical female voice type. The name comes from the Italian contra alto, “against the alto”, from the Renaissance when the part sang below the high line. A contralto’s voice is strongest and most beautiful in the lower middle, around A3 to C5, with a powerful chest voice that can reach E3 or lower. True contraltos are the rarest female voices, which is why many contralto roles in opera are sung by mezzo-sopranos. Very low contraltos are called contralto profondo.
What Is an Alto?
Alto is the second line from the top in four-part choir music: soprano, alto, tenor, bass. The part usually sits between G3 and D5, below the melody. Because it is a part rather than a voice, anyone who can sing those notes comfortably can be an alto, and most choir altos are mezzo-sopranos. More about the part, alto vs soprano and male altos is in the alto voice guide.
Is Contralto Lower Than Alto?
Slightly, yes. A contralto’s typical range (F3–F5) starts a tone below the usual alto part (G3–D5) and is centred lower in tessitura, the zone where the voice is comfortable (see what tessitura is). Contraltos often sing the lowest alto notes with ease that mezzo-sopranos find hard, while mezzos are happier when the alto part climbs to C5 or D5.
Where Mezzo-Soprano Fits In
The mezzo-soprano (about A3–A5) is the middle female voice and the most common one. Mezzos sing alto or second soprano in choirs. So “alto” covers two voice types: the lower mezzos and the contraltos. How those two differ, with examples, is explained in mezzo-soprano vs contralto, and all six voice types are compared in voice types.
The Contralto Range in Detail
| Note | Frequency | For a contralto |
|---|---|---|
| E3–F3 | 165–175 Hz | Bottom of the range; full and resonant |
| A3–C5 | 220–523 Hz | The comfortable core (tessitura) |
| D5–E5 | 587–659 Hz | Upper notes, usually in head voice |
| F5 | 698 Hz | Top of the typical range |
Compared with the other female voices, the contralto range sits about a third below the mezzo-soprano and a sixth below the soprano; all six voice types are shown on one keyboard in typical vocal ranges.
Why the Two Words Get Mixed Up
- In pop and jazz, “alto” is used loosely for any low female voice, so singers are called altos when a classical teacher would say contralto or mezzo.
- In older English choral tradition, the word alto was also used for male falsetto singers (male altos), not only women.
- Some teachers use contralto and alto as synonyms, which makes online answers contradict each other.
Famous Contraltos
On this site’s singer pages, Amy Winehouse (D3–E♭6), Etta James (D3–G5) and Brandy (F3–D5) are classified as contraltos: all three built their sound on a dark, strong low and middle range. In classical music, famous contraltos include Marian Anderson and Kathleen Ferrier.
Alto 1, Alto 2 and Where Contraltos Sing
Choirs often split the altos into Alto 1 (higher, often mezzo-sopranos) and Alto 2 (lower, often contraltos). If the Alto 2 line feels most natural and you can sing F3–G3 with a full sound, you may be a contralto. Part ranges for the whole choir are in choral vocal ranges.
Tips for Contraltos Singing Alto
- Keep the low notes warm and resonant rather than pushed; a contralto’s low range carries naturally.
- Sing the top of the alto part (C5–D5) lightly in head voice instead of carrying chest voice up.
- Ask for the Alto 2 line if your choir divides the altos.
- For solo songs, choose lower keys: many songs written for female pop singers sit a third or more above a contralto’s comfort zone.
How to Tell If You Are a Contralto
- Your comfortable range is about F3 to F5, and notes above F5 feel strained even when warmed up.
- Your chest voice is strong and full down to F3 or E3.
- Your voice sounds dark and heavy even on middle notes.
- You switch from chest to head voice relatively low, around D4–E4.
Measure your range with the voice type test, or see your notes and the famous singers closest to you with the vocal range calculator.
Frequently Asked Questions
Is contralto the same as alto?
No. Contralto is a voice type; alto is a choir part. Contraltos sing alto, but so do many mezzo-sopranos.
What is a contralto voice?
The lowest female voice type, about F3–F5, with a dark, rich tone. It is the rarest female voice.
Can a man be a contralto?
Not in the usual sense. Men who sing in the alto range use falsetto and are called countertenors or male altos.
What is the difference between alto and contralto range?
Small: the alto part is about G3–D5, the contralto voice about F3–F5, but the contralto is comfortable lower.
Conan is a vocal analysis and singing tools writer specializing in vocal range testing, pitch recognition, voice classification, and music education for singers, musicians, and beginners. He creates practical, easy-to-understand content focused on vocal analysis tools, singing improvement, and voice training resources.