How to Tune a Guitar (Every Method Explained)

10 min read · Beginner · Updated February 2026

An out-of-tune guitar makes everything sound wrong — no matter how good your technique is. Tuning is the single most important skill for any guitarist, yet many beginners struggle with it or skip it entirely. This guide covers every tuning method so you can always get your guitar sounding right.

Standard Tuning: The Basics

In standard tuning, the six strings of the guitar are tuned to these notes (from thickest to thinnest):

• 6th string (thickest): E2
• 5th string: A2
• 4th string: D3
• 3rd string: G3
• 2nd string: B3
• 1st string (thinnest): E4

Popular mnemonics to remember the string names:

• Eddie Ate Dynamite, Good Bye Eddie
• Every Amateur Does Get Better Eventually
• Elephants And Donkeys Grow Big Ears

Method 1: Clip-On Tuner (Recommended for Beginners)

A clip-on tuner is the most reliable and easiest way to tune. It clips onto the headstock of your guitar and detects pitch through vibrations, so it works even in noisy environments.

How to Use It

1. Clip the tuner onto the headstock and turn it on
2. Pluck a single string (let the other strings stay silent)
3. The tuner displays the note it detects and whether you're sharp (too high) or flat (too low)
4. Turn the corresponding tuning peg: tighten to go higher (sharp), loosen to go lower (flat)
5. When the indicator is centered and shows the correct note, that string is in tune
6. Repeat for all six strings

Top picks: The Snark SN-5X (~$13) and TC Electronic UniTune Clip (~$30) are both excellent. The Snark is a great budget option; the UniTune is faster and more accurate.

Pro tip: Always tune UP to the note. If you're sharp, loosen the string past the target note, then tighten back up to it. This prevents the string from slipping out of tune due to slack in the tuning peg mechanism.

Method 2: Tuner Apps

Your smartphone can be a perfectly good tuner. Free apps use your phone's microphone to detect pitch.

Recommended Apps

• Guitar Tuna (iOS/Android) — The most popular guitar tuner app. Simple interface, accurate, and free. Also includes a metronome and chord library
• Fender Tune (iOS/Android) — Clean design, accurate, and made by one of the biggest names in guitar
• BOSS Tuner (iOS/Android) — Based on BOSS's legendary pedal tuners. Highly accurate

Limitations: Phone tuners rely on the microphone, so they struggle in noisy environments. They're perfect for quiet rooms but less reliable at band practice or gigs. For those situations, use a clip-on tuner.

Method 3: Pedal Tuner

If you play electric guitar, a pedal tuner is the gold standard. It connects between your guitar and amp via a cable, giving silent, precise tuning on stage.

The BOSS TU-3 and TC Electronic PolyTune 3 are industry standards. The PolyTune can check all six strings at once by strumming them together — a huge time-saver during live performance.

Pedal tuners are overkill for beginners but worth knowing about as you progress.

Method 4: Tuning by Ear (The 5th Fret Method)

This is the classic method that guitarists have used for generations. It's not as precise as an electronic tuner, but it trains your ear and works when you don't have a tuner handy.

How It Works

The principle is simple: the 5th fret of one string produces the same note as the next open string (with one exception).

1. Start with the 6th string (low E). You need at least one string to be in tune as a reference. Use a piano, tuning fork, or another instrument to get the low E correct
2. 6th string, 5th fret = 5th string open (A). Play the 5th fret of the 6th string and the open 5th string together. Adjust the 5th string until they match
3. 5th string, 5th fret = 4th string open (D). Same process
4. 4th string, 5th fret = 3rd string open (G). Same process
5. 3rd string, 4th fret = 2nd string open (B). NOTE: This is the 4th fret, not the 5th! This is the one exception
6. 2nd string, 5th fret = 1st string open (E). Back to the 5th fret

Listen for “beats.” When two notes are close but not perfectly in tune, you'll hear a wavering, pulsing sound called “beats.” The closer the notes get to being in tune, the slower the beats become. When they disappear completely, the strings match.

Method 5: Harmonics Method

This is a more advanced ear-tuning method that uses natural harmonics to produce clear, bell-like tones that are easier to compare than fretted notes.

How to Play Harmonics

Lightly touch (don't press) a string directly above a fret wire, then pluck the string and immediately lift your finger. A clear, chime-like tone should ring out. The easiest harmonics are at the 12th, 7th, and 5th frets.

The Method

1. Play the harmonic at the 5th fret of the 6th string
2. Play the harmonic at the 7th fret of the 5th string
3. These should produce the same pitch. Listen for beats and adjust the 5th string
4. Repeat: 5th string 5th fret harmonic = 4th string 7th fret harmonic
5. Continue the pattern for the D and G strings
6. For the B and E strings, use the 5th fret method or a tuner (harmonics are less reliable here due to equal temperament)

This method is popular among experienced players for quick, accurate tuning. The harmonics sustain longer than fretted notes, giving you more time to listen and adjust.

Method 6: Tune to a Piano or Keyboard

If you have a piano or keyboard nearby, simply match each open string to the corresponding key. The guitar's open strings correspond to these piano keys:

• 6th string: E below middle C (E2)
• 5th string: A below middle C (A2)
• 4th string: D above the A (D3)
• 3rd string: G above that (G3)
• 2nd string: B below middle C (B3)
• 1st string: E above middle C (E4)

Why Does My Guitar Keep Going Out of Tune?

If your guitar won't stay in tune, here are the most common causes:

• New strings. Fresh strings need time to stretch. After changing strings, tune up, then gently pull each string away from the fretboard to stretch it, retune, and repeat 3-4 times
• Temperature and humidity changes. Wood expands and contracts with environmental changes. This is normal — just retune
• Old or worn strings. Strings that have lost their elasticity won't hold pitch well. If your strings are dull, corroded, or more than a few months old, change them
• Cheap tuning pegs. Low-quality machine heads slip. This is a common issue with very budget guitars. An upgrade to quality tuners ($30-50 for a set) can be transformative
• Nut problems. If strings stick in the nut slots, they can go sharp when you bend notes and not return to pitch. A guitar tech can fix this by lubricating or widening the slots
• Aggressive playing. Heavy strumming and bending naturally pull strings out of tune. This is normal for any guitar — just check your tuning between songs

Alternate Tunings

Standard tuning isn't the only option. Many songs use alternate tunings to create sounds that are impossible in standard.

Drop D (DADGBE)

Lower the 6th string one whole step from E to D. This is the most common alternate tuning, widely used in rock and metal. It allows you to play power chords with one finger on the bottom three strings.

Songs in Drop D: “Everlong” (Foo Fighters), “Heart-Shaped Box” (Nirvana), “Killing in the Name” (Rage Against the Machine)

Open G (DGDGBD)

Tune to a G major chord. Strum all open strings and you get a full, rich G chord. Popularized by Keith Richards of the Rolling Stones, who often removes the 6th string entirely in this tuning.

Songs in Open G: “Start Me Up” (Rolling Stones), “Jumpin' Jack Flash” (Rolling Stones)

Open D (DADF#AD)

Tune to a D major chord. Popular in blues and slide guitar. Strumming the open strings gives you a full D major chord.

DADGAD

A popular tuning in Celtic, folk, and acoustic fingerstyle music. It produces a rich, droning quality that sounds like a cross between major and minor. Used extensively by guitarists like Pierre Bensusan and Jimmy Page (“Kashmir”).

Half Step Down (Eb Ab Db Gb Bb Eb)

Every string tuned down one half step from standard. Used by Jimi Hendrix, Stevie Ray Vaughan, Guns N' Roses, and many others. It slightly reduces string tension, makes bending easier, and gives a slightly darker, heavier tone.

Tuning Tips and Best Practices

• Tune every single time you play. No exceptions. Even five minutes of playing an out-of-tune guitar trains your ear to accept wrong notes
• Tune up to the note, not down. If you overshoot, go below and come back up. This prevents string slippage
• Mute other strings. When tuning one string, make sure the others aren't ringing. Sympathetic vibrations can confuse tuners
• Check tuning after using a capo. Capos often pull strings slightly sharp. Retune with the capo in place
• Retune after big bends. If you've been doing a lot of string bending during a playing session, check your tuning
• Let new strings settle. After changing strings, expect to retune frequently for the first day or two

Good tuning is the foundation of everything else on guitar. Get a clip-on tuner, use it religiously, and as your ear develops, supplement with the 5th fret and harmonics methods. Your playing will thank you — and so will everyone who has to listen.

Ready to put that freshly-tuned guitar to use? Check out our Easy Guitar Chords lesson or jump into some easy songs.