Standard tuning uses the notes E, A, D, G, B, and E
A guitar in standard tuning has its six strings set to the pitches E, A, D, G, B, and E, starting from the thickest string (the low E) down to the thinnest (the high E). This tuning has been the default for acoustic and electric guitars for over a century because it balances playability, range, and the ability to play most songs written for guitar.
When you tune to standard, the lowest string vibrates at 82.4 Hz (the note E2), and the highest vibrates at 329.6 Hz (the note E4). These frequencies are what your ear recognizes as the pitches E, A, D, G, B, and E. A tuner—whether a clip-on device, a smartphone app, or a pedal tuner—listens to each string and tells you whether it is too high (sharp) or too low (flat) compared to the target pitch.
Standard tuning is what you will find in songbooks, online tabs, and tutorials. If someone says "tune your guitar," they mean standard tuning unless they say otherwise.
Key Takeaways
- Standard tuning is E-A-D-G-B-E from the thickest string to the thinnest, and it is the default for nearly all guitar music and instruction.
- A digital tuner (clip-on, pedal, or app) listens to each string and shows you whether it is sharp or flat compared to the target pitch.
- Tuning stability depends on the condition of your strings, tuning pegs, and bridge—old or damaged strings go out of tune faster.
- Alternative tunings exist for specific songs or styles, but standard tuning is where you start and where most players stay.
- Guitars drift out of tune naturally from temperature changes, string wear, and playing, so you will retune regularly.
How to use a tuner to reach standard pitch
A digital tuner is the fastest way to get your guitar in tune. Clip-on tuners (which fasten to the headstock) cost $10 to $30 and work by sensing vibration rather than sound, so they work even in noisy rooms. Smartphone tuner apps are free and work by listening through your phone's microphone, though they are slower and less reliable in background noise.
To tune with a clip-on tuner: pluck the thickest string (low E), look at the tuner's display, and turn the tuning peg for that string until the tuner shows E and the needle or indicator centers. Repeat for each string in order: A, D, G, B, E. Tune slowly—turning the peg too fast overshoots the pitch and wastes time. If a string is very flat, you can turn it up quickly until you are close, then fine-tune by ear or with the tuner.
Tuners show you the note name and whether you are sharp (too high) or flat (too low). Some tuners also show cents—a measure of how far off you are. Aiming for zero cents gives you perfect pitch, but being within 5 cents is good enough for playing.
Why guitars go out of tune and how often to retune
A new set of strings takes several days to fully settle and hold pitch. During that time, you will need to retune every few hours. After a week or so, strings stabilize and drift less.
Guitars drift out of tune for several reasons: temperature and humidity changes affect wood and metal, playing bends and vibrato loosens strings, and friction in the tuning pegs and nut gradually releases tension. A guitar that is played daily may need retuning every few hours or every day, depending on the quality of the tuning pegs and strings. A guitar that sits untouched may stay in tune for days.
If your guitar goes out of tune very quickly—within minutes of tuning—the problem is usually old strings, worn tuning pegs, or a bridge that is not seated properly. Replacing strings is the first step; if that does not help, a technician can check the tuning pegs and bridge.
Alternative tunings for specific songs and styles
Some songs and styles use tunings other than standard. Drop D (D-A-D-G-B-E) lowers the thickest string from E to D and is common in rock and metal. Open G (D-G-D-G-B-D) tunes the guitar so that strumming all open strings plays a G major chord, and it is used in blues and folk. DADGAD (D-A-D-G-A-D) is popular in fingerstyle and Celtic music.
Online tabs and tutorials tell you which tuning a song uses. If the tuning is not standard, the tab will say so at the top. You do not need to learn alternative tunings to start playing—standard tuning covers the vast majority of songs. But as you progress, you may experiment with them for specific pieces or to explore different sounds.
Switching between tunings is normal. Retune to standard when you move to a different song, or use a capo (a clamp that shortens the strings) to change the pitch without retuning.
The role of string quality and hardware in staying in tune
Cheap strings made of thin or low-quality metal go flat quickly and break easily. Mid-range strings (costing $5 to $10 per set) hold pitch much better and last weeks or months. Premium strings cost more but are worth it if you play daily, because you will not have to replace them as often.
The tuning pegs (the machines on the headstock that turn to adjust pitch) also matter. Cheap tuning pegs have loose gears and friction that causes drift. Better tuning pegs turn smoothly and hold tension. If your guitar has original tuning pegs from decades ago, they may be worn out; a technician can replace them.
The nut (the small piece at the top of the neck where strings rest) and the bridge (where strings attach at the body) must be properly seated. If either shifts, strings will not hold pitch. This is a job for a technician, not a home fix.
Tuning by ear once you know the target pitches
After you have tuned with a tuner many times, you can learn to tune by ear using reference pitches. The most common method is to tune the low E string with a tuner, then tune the other strings relative to it using intervals.
For example: press the low E string at the fifth fret (this produces the note A), then tune the open A string to match that pitch. Press the A string at the fifth fret (this produces D), then tune the open D string to match. Continue this pattern for D to G, G to B, and B to E. The high E string is different: press the B string at the fourth fret (this produces E), then tune the open high E to match.
Tuning by ear takes practice and a good ear, but it is useful when you do not have a tuner nearby. Most players use a tuner for accuracy and speed, especially when starting out.
When to call a technician for tuning problems
If your guitar will not stay in tune no matter how many times you retune it, or if the tuning pegs are hard to turn or slip, a technician should look at it. Common issues include worn tuning pegs, a nut that is cut incorrectly, a bridge that is lifting, or a neck that has warped from humidity changes.
A setup—a full inspection and adjustment of the tuning pegs, nut, bridge, and neck—costs $50 to $150 depending on the shop and the guitar's condition. It is worth doing if your guitar is new (to optimize it out of the box) or if it has been sitting unused for years.
Frequently Asked Questions
Can I tune my guitar to a different pitch if I want a lower or higher sound?
Yes. Tuning all six strings down by one full step (D-G-C-F-A-D) lowers the pitch and is common in rock and metal. Tuning up raises pitch but puts more tension on the strings and neck, which can damage the guitar over time. Use a capo instead if you want a higher pitch without retuning.
What if one string keeps going flat while the others stay in tune?
That string is probably old or damaged. Replace the entire set of strings—they wear unevenly, and replacing one at a time wastes money. If a new string still goes flat quickly, the tuning peg for that string may be worn out and need replacement by a technician.
Is there a difference between tuning a classical guitar and an electric guitar?
No. Both use standard tuning (E-A-D-G-B-E) and are tuned the same way with a digital tuner. Classical guitars have nylon strings that settle more slowly than steel strings, so they may need more frequent retuning for the first week after a string change.
Do I need to tune before every practice session?
Yes, unless you just tuned a few minutes ago. Even a guitar that sounds reasonably in tune may be off by enough to affect your ear training and make songs sound wrong. Tuning takes less than a minute and is part of the routine.