How to tune a guitar (2026)
Quick Answer
To tune a standard six-string guitar, match the open strings to the usual pitches from lowest to highest: E, A, D, G, B, E. Use an electronic tuner, tuning app, piano or tuning fork, pluck one string at a time, and turn the correct tuning peg slowly until the note is in tune. Retune all strings once or twice afterwards because changing one string can slightly affect the others.
Overview
Tuning a guitar means adjusting each string so it reaches the correct pitch. The most common tuning for a six-string guitar is standard tuning: low E, A, D, G, B, high E. The easiest and most reliable method for most people is to use a clip-on tuner or a reputable tuning app, because both help you identify whether a string is too low or too high and guide you to the target note. If you tune by ear, you can get close, but it is easier to make mistakes, especially if the guitar is badly out of tune or if you are new to the instrument. Good tuning is not just about sounding pleasant. It affects how chords ring, how well you play with other people, and whether your practice develops a reliable sense of pitch. Strings also drift out of tune naturally with use, temperature changes, new strings stretching, and strong picking. For that reason, it is normal to tune before every practice session and check again during longer playing. If the guitar will not stay in tune even after careful tuning, the issue may be worn strings, poor string winding, or a setup problem rather than your tuning method.
Who this is for
Beginners learning their first guitar, returning players, and anyone who wants a quick, practical method for tuning an acoustic or electric six-string guitar.
What you’ll need
- A six-string guitar
- A guitar tuner, clip-on tuner, or reputable tuning app
- A reasonably quiet place if using a microphone-based app
- Basic familiarity with which tuning peg belongs to which string
Before you start
Check whether your guitar is meant to be in standard tuning or a different tuning for a specific song. Make sure the strings are in decent condition, correctly fitted, and not obviously slipping at the tuning posts. If you have just put on new strings, expect them to go out of tune repeatedly until they settle.
Step-by-step
- 1
Identify the target tuning
Confirm the notes you need before turning anything. For standard tuning on a six-string guitar, the strings from thickest to thinnest are E, A, D, G, B, E.
Why: You need the correct target notes first; otherwise you can tune accurately to the wrong pitches.
- 2
Set up your tuner
Turn on your clip-on tuner and attach it to the headstock, or open your tuning app and allow microphone access if needed. Make sure it is set for guitar or chromatic tuning, depending on how you plan to tune.
Why: A properly set tuner helps you see the note name and whether the string is flat or sharp, which reduces guesswork.
- 3
Tune one string at a time
Pluck the thickest string cleanly and let it ring. Watch the tuner, then turn the matching tuning peg slowly until the tuner shows the correct note and indicates it is in tune. Repeat for the remaining strings in order: E, A, D, G, B, high E.
Why: Working string by string keeps the process organised and helps prevent turning the wrong peg or overshooting the pitch.
- 4
Always approach the note carefully
If the string is below pitch, tighten gradually until you reach the note. If you go too far and make it too sharp, loosen slightly and bring it back up carefully rather than leaving it above pitch.
Why: Slow adjustments reduce the risk of string breakage and help the string settle more predictably at the target pitch.
- 5
Retune the full set
After tuning all six strings once, go back and check them again from the first string to the last. Make small corrections as needed.
Why: Changing string tension on one string can slightly affect the others, so a second pass gives a more stable result.
- 6
Play a few chords and check again
Strum a few common chords or single notes up the neck, then recheck any string that sounds off. If you fitted new strings recently, repeat this process until the tuning stops drifting quickly.
Why: A final musical check confirms that the guitar sounds right in real playing, not just on isolated open strings.
Why this works
Each string produces a pitch based on its tension, length and mass. Tuning changes the tension until each open string matches the intended note. Because guitar strings share tension across the neck and bridge, changing one string can slightly affect the rest, which is why rechecking all strings matters.
Common mistakes to avoid
- Turning the wrong tuning peg, especially on a crowded headstock
- Tightening too fast and overshooting the pitch
- Tuning in a noisy room when using a phone app
- Ignoring the note name and only watching whether the needle is centred
- Trying to tune with old, damaged or badly fitted strings
- Not retuning after replacing strings
Troubleshooting
The tuner shows the wrong note name for the string
Check that you are plucking only one string, mute the others, and confirm you are turning the correct peg. If the pitch is far off, bring it slowly towards the correct note name instead of only chasing the centre indicator.
The guitar goes out of tune again within minutes
New strings often need time to settle. Retune several times, check that the strings are wound neatly on the posts, and look for slipping at the tuner posts or string ends.
One string will not tune accurately
Inspect the string for age, kinks or damage and replace it if needed. Also check whether it is catching in the nut or bridge saddle; if that keeps happening, a guitar technician may need to assess it.
An app struggles to hear the guitar
Move to a quieter room, pluck more clearly, bring the phone closer, or use a clip-on tuner that reads vibration rather than room sound.
Open strings are in tune but chords still sound wrong
The guitar may have intonation or setup issues. Check the tuning again first, then consider fresh strings or a professional setup if the problem persists.
Compare your options
Clip-on tuner
Best for: Most players, especially in noisy places
Pros: Easy to use, reads instrument vibration, good for acoustic and electric guitars
Cons: Needs a battery and may be less discreet than an app
Phone tuning app
Best for: Beginners who want a convenient low-cost option
Pros: Usually easy to access, often includes note guidance and visual indicators
Cons: Microphone-based tuning can be less reliable in noisy rooms
Tuning by ear
Best for: Players developing pitch awareness or without a tuner
Pros: Builds listening skills and does not need extra equipment
Cons: Harder for beginners and easier to get wrong if the starting note is off
| Option | Best for | Pros | Cons |
|---|---|---|---|
| Clip-on tuner | Most players, especially in noisy places | Easy to use, reads instrument vibration, good for acoustic and electric guitars | Needs a battery and may be less discreet than an app |
| Phone tuning app | Beginners who want a convenient low-cost option | Usually easy to access, often includes note guidance and visual indicators | Microphone-based tuning can be less reliable in noisy rooms |
| Tuning by ear | Players developing pitch awareness or without a tuner | Builds listening skills and does not need extra equipment | Harder for beginners and easier to get wrong if the starting note is off |
Alternatives
- Use a piano or keyboard as a reference pitch and match each string by ear
- Use harmonics or the fifth-fret method to tune relative to one correctly tuned string
- Use a pedal tuner if you play electric guitar on stage or through a signal chain
Pro tips
- Tune before every practice session, rehearsal or performance
- Pluck each string with a normal playing strength so the tuner reads a realistic pitch
- Mute unused strings with your free hand so the tuner hears only one note
- If you often change tunings, learn the note names rather than relying only on string order
- Replace strings when they become dull, corroded or unstable in tuning
Safety notes
- Turn tuning pegs slowly; over-tightening can snap a string
- Keep your face away from the line of the string if a string is under high tension
- Dispose of old strings carefully because cut ends can be sharp
What this guide does not cover: This guide covers basic tuning for a standard six-string guitar. It does not go deep into alternate tunings, twelve-string guitars, intonation adjustment, tremolo system balancing, or full setup work.
Cost considerations
A tuning app may be enough to get started, while clip-on and pedal tuners are a common paid upgrade for faster or more reliable tuning. If tuning problems are caused by setup faults rather than user error, a professional setup or string replacement may be more cost-effective than repeatedly fighting unstable tuning.
Frequently asked questions
What is standard guitar tuning?+
For a standard six-string guitar, from the thickest string to the thinnest, it is E, A, D, G, B, E.
Should I tune up to the note or down to it?+
In practice, bring the string to the correct pitch carefully and avoid leaving it sharp. If you overshoot, back off slightly and retune with small movements so the string settles properly.
How often should I tune my guitar?+
Check tuning every time you play. You may also need to retune during a session, after heavy strumming, after transport, or whenever the room temperature changes noticeably.
Why do new strings not stay in tune?+
New strings stretch and settle at the tuning posts and bridge. This is normal at first, so they often need repeated tuning before becoming stable.
Can I tune an electric guitar without plugging it in?+
Yes. A clip-on tuner works well because it reads vibration, and many apps can hear an unplugged electric guitar in a quiet room.
Basic guitar tuning methods and standard tuning conventions change very little over time.