A standard guitar has six strings
The vast majority of guitars you will encounter have six strings. This has been the standard for centuries and remains true whether you are looking at an acoustic guitar in a music store, an electric guitar on stage, or a classical guitar in a concert hall. Each string is tuned to a specific note, and together they create the range of pitches a guitarist can play.
The six strings are tuned, from thickest to thinnest, to the notes E, A, D, G, B, and E. Musicians often remember this with the phrase "Eddie Ate Dynamite, Good Bye Eddie." The thickest string is called the low E string, and the thinnest is the high E string. This tuning standard has remained consistent across guitar styles for generations, which is why nearly all beginner instruction books, chord charts, and online tutorials assume a six-string setup.
Key Takeaways
- Standard guitars have six strings tuned to E, A, D, G, B, and E from thickest to thinnest.
- The six-string configuration works the same way on acoustic, electric, and classical guitars.
- Some guitars have more or fewer strings, but these are specialized instruments, not the standard.
- String thickness affects both the pitch and the physical feel of playing, with thicker strings producing lower notes.
Why guitars have six strings instead of more or fewer
Six strings strike a balance between range and playability. With six strings, a guitarist can play a wide span of notes—roughly four octaves—without the instrument becoming too wide or difficult to hold. Fewer strings would limit the range of music you could play; more strings would make the neck wider and harder to navigate, especially for beginners.
The six-string standard also emerged from practical history. Early stringed instruments had varying numbers of strings, but by the time the modern guitar shape solidified in Spain during the 16th century, six strings became the norm. This long tradition means that virtually all teaching methods, chord shapes, and musical notation for guitar assumes six strings. If you pick up any guitar instruction book or watch a tutorial online, it will be built around this standard.
How string thickness relates to pitch
Each of the six strings is a different thickness, and this thickness directly determines the pitch it produces. The thickest string (low E) vibrates slowly and produces the lowest note. As you move toward the thinner strings, each one vibrates faster and produces a higher pitch, until you reach the thinnest string (high E), which vibrates the fastest and produces the highest note.
The strings are also made of different materials to achieve the right balance of thickness and playability. The three thickest strings—E, A, and D—are usually wound with metal wire wrapped around a core, which adds mass without making them too stiff. The three thinner strings—G, B, and E—are typically plain metal or nylon, depending on whether you are playing an electric or acoustic guitar. This combination allows all six strings to be played comfortably while covering a large range of pitches.
Guitars with more or fewer than six strings
Some guitars are built with a different number of strings, but these are specialized instruments rather than the standard. Seven-string guitars add an extra low string below the standard low E, giving access to deeper notes. Twelve-string guitars have six pairs of strings, with each pair tuned close together to create a richer, fuller sound. Bass guitars typically have four strings tuned an octave lower than a standard guitar's four lowest strings.
On the other end, some classical and flamenco guitars have nylon strings that are arranged slightly differently, but they still follow the six-string standard. Ukuleles and other small stringed instruments have fewer strings—usually four—but they are distinct instruments, not variations of the guitar. If you are learning guitar for the first time, you will almost certainly start with a six-string instrument, as that is what all beginner materials and most teachers assume.
What happens if a string breaks
If one string breaks during play, you still have five working strings, but the guitar will sound incomplete and unbalanced. A broken string is usually replaced rather than repaired, since strings are inexpensive and wear out naturally over time. Most guitarists keep spare strings on hand so they can replace a broken one quickly.
When you replace a string, you thread it through the bridge (on acoustic guitars) or the bridge block (on electric guitars), then pull it up to the tuning peg at the headstock and wind it tight. The new string will take a few hours to settle and hold its pitch, so it is normal for it to go slightly out of tune during the first day of playing. Once it stabilizes, you tune it to match the other strings, and the guitar sounds normal again.
How to check if your guitar has the standard six strings
Count the tuning pegs at the headstock of your guitar—the part at the top where the strings attach. A standard guitar has six tuning pegs, one for each string. If you see six pegs arranged in two rows of three (on most electric guitars) or in a line along the back of the headstock (on most acoustic guitars), you have a standard six-string guitar.
You can also count the strings themselves where they attach to the bridge at the bottom of the guitar body. A standard guitar will have six strings running from the bridge up to the headstock. If you are unsure whether your guitar is standard, this straightforward count will tell you when ready.
Frequently Asked Questions
Can I play a song written for six strings on a guitar with fewer strings?
Sometimes, but not always. A song that uses notes from all six strings may not be playable on a four-string instrument. However, many straightforward melodies and chords can be adapted. If you have a specialized guitar with fewer strings, you may need to find arrangements written specifically for that instrument.
Do all acoustic and electric guitars have six strings?
The vast majority do, but not all. Most acoustic and electric guitars sold are six-string models. However, seven-string and twelve-string versions exist for both acoustic and electric guitars. When buying a guitar, the number of strings will be clearly stated in the product description or visible when you look at the headstock.
Why is the low E string thicker than the high E string?
Thickness determines how fast a string vibrates. A thicker string vibrates more slowly and produces a lower pitch; a thinner string vibrates faster and produces a higher pitch. By varying the thickness across all six strings, manufacturers can cover a wide range of pitches while keeping all the strings playable with similar finger pressure.
If I break a string, do I have to replace all six?
No. You only need to replace the broken string. However, many guitarists replace all six strings at once if the others are old or worn, since you already have the guitar in a state where strings are being changed. If your other strings are relatively new, replacing just the broken one is perfectly fine.
Are nylon strings different from metal strings on a six-string guitar?
Yes. Classical and flamenco guitars use nylon strings, while most acoustic and electric guitars use metal strings. Nylon strings feel softer on your fingers and produce a warmer tone, while metal strings are brighter and louder. Both types come in six-string sets, so the number of strings stays the same—only the material changes.