What Is a 1/2 Size Classical Guitar?
Updated Nov 12, 2026 · By 
Jonah Mercer · Editorial policy
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A 1/2 size classical guitar is a smaller guitar with a shorter scale length than a full size guitar. The Yamaha CGS102AII below is a 1/2 size model, with a 535 mm scale length and a 48 mm saddle width. It tunes the same as a full size guitar, to E A D G B E.
What 1/2 size means
Size names for classical guitars run 1/4, 1/2, 3/4 and 4/4, with 4/4 the full size. A 1/2 size guitar is a smaller body and a shorter scale length than a full size guitar: the Yamaha CGS102AII lists a scale length of 535 mm, against 648 for the full size Cordoba C1M. The size name describes the guitar, not the player, so measure the player against the guitar instead of going by age.
Check the fit before you buy
Hold the guitar in playing position and check the reach: the fretting hand should reach the low frets without stretching, and the picking hand should rest over the soundhole without hunching. The 1/2 size Yamaha CGS102AII has a 48 mm saddle width and a 535 mm scale length, while the 3/4 size Yamaha CGS103A sits between the 1/2 size and the full size Cordoba C1M. If the guitar feels too big to hold, try the next size down; if it feels cramped, try the next size up.
What changes with the size
A smaller guitar has a shorter scale length, so the frets sit closer together. The body is smaller as well, so the guitar weighs less: the 1/2 size Yamaha CGS102AII lists 2.9 pounds, against 3.2 pounds for the full size Cordoba C1M and 4.5 pounds for the Ibanez thinline. The tuning stays the same at E A D G B E, and the string count stays at 6, so a 1/2 size guitar tunes and strings like a full size guitar.
Look past the size name
A size name alone does not tell the whole story, so read the specs in the listing: top wood, body wood, neck wood and fingerboard wood, plus the scale length and the weight. The Yamaha CGS102AII lists a spruce top, a meranti body and a rosewood fingerboard, while the Cordoba C1M lists a spruce top with mahogany back and sides. The Ibanez GA35TCE adds an undersaddle pickup and a preamp with an onboard tuner. Compare the specs, not the size name alone.
What you need
Cordoba C1M Classical Acoustic Nylon String Guitar
A full size classical guitar with a spruce top, mahogany back and sides, and nylon strings, for measuring a smaller size against.
- Size: full size
- Top wood: Spruce
- 1-year warranty stated
IbanezGA35TCEDVS Thinline Acoustic-Electric Classical Guitar Dark Violin Burst
A thinline acoustic-electric classical guitar with a spruce top, an undersaddle pickup and a preamp with an onboard tuner.
- Built-in pickup / EQ
- Top wood: Spruce
- Lifetime warranty stated
Yamaha CGS103A 3/4 Size Classical Guitar
A 3/4 size classical guitar with a spruce top, meranti back and sides, and a nato neck.
- Size: 3/4
- Top wood: Spruce
Yamaha CGS102AII
A 1/2 size classical guitar with a spruce top, a meranti body and a rosewood fingerboard, with a 535 mm scale length and a 48 mm saddle width.
- Size: concert
- Top wood: Spruce
These come from our ranked list Best Mini Classical Guitar, which compares them spec by spec.
Frequently asked questions
Is a 1/2 size guitar a real guitar?
Yes. A 1/2 size classical guitar is a smaller guitar with the same tuning, E A D G B E, and the same string count of 6. The body and scale length are smaller, so measure the player against the guitar to check the fit.
What is the difference between 1/2 and 3/4 size?
A 1/2 size guitar is smaller than a 3/4 size guitar, with a shorter scale length and a smaller body. The Yamaha CGS102AII is a 1/2 size model with a 535 mm scale length, while the Yamaha CGS103A is a 3/4 size model. Hold each guitar in playing position and check the reach before you buy.
Does a 1/2 size guitar tune the same?
Yes. A 1/2 size classical guitar tunes to E A D G B E, the same standard tuning as a full size guitar. Set a chromatic tuner to A440 and tune each string to its note. The shorter scale length does not change the notes.
Ranked classical guitars lists
More how-to guides
Product details come from each Amazon listing and can change. Check the listing before you buy.