Free Online Fiddle Tuner

Tune your fiddle or violin to standard G D A E in seconds. Use your microphone to tune as you bow, or tap any string to hear its pitch and tune by ear. Free and works on any device.

Standard tuning: G D A E
♭ FlatIn tuneSharp ♯
Tap a string to hear its pitch, or start the microphone to tune.
Reference tones
For live tuning, allow microphone access when prompted. Nothing is recorded or sent anywhere.

How to tune a fiddle

You can tune your fiddle two ways with this tool: in real time with your microphone, or by ear with the reference tones. Here is the microphone method, step by step.

  1. Tap Tune with microphone and allow access when your browser asks. On a phone, hold the microphone near your fiddle.
  2. Play a single string and let it ring clearly.
  3. Read the big note display. It shows the note you are playing, and the needle shows how many cents sharp or flat you are.
  4. Turn the tuning peg slowly until the needle sits in the centre and the readout turns green, which means the string is in tune.
  5. Repeat for each string (G D A E). Prefer to tune by ear? Tap any string on the tuner to hear its exact pitch.

Fiddle tuning notes and frequencies

A fiddle is tuned in perfect fifths, exactly like a violin. Here are the exact notes and frequencies for standard G D A E tuning, from the lowest string to the highest.

Fiddle standard tuning (G D A E)
StringNoteFrequency
4th string (lowest)G3196.00 Hz
3rd stringD4293.66 Hz
2nd stringA4440.00 Hz
1st string (highest)E5659.25 Hz

Fiddle tuner: frequently asked questions

What tuning is a fiddle in?

A fiddle is tuned G, D, A, E in perfect fifths, exactly the same as a violin. From the lowest string to the highest the notes are G3, D4, A4 and E5.

Is a fiddle the same as a violin?

A fiddle and a violin are the same instrument. Fiddle is the name players tend to use in folk, bluegrass, country and Celtic styles, while violin is more common in classical music. Both use standard G, D, A, E tuning.

What are the fiddle string notes and frequencies?

From low to high: G3 (196.00 Hz), D4 (293.66 Hz), A4 (440.00 Hz) and E5 (659.25 Hz). The strings are tuned a perfect fifth apart.

How do I tune a fiddle with this online tuner?

Allow microphone access, then bow or pluck one string and watch the display. It shows the note and how sharp or flat you are. Adjust the peg, or the fine tuner for small changes, until the needle centres and the readout turns green. You can also tap a string to hear a reference tone.

Is a fiddle tuned like a mandolin?

Yes. A fiddle and a mandolin share the same G, D, A, E tuning, which is why fiddle tunes and mandolin tunes move so easily between the two instruments.

What is cross tuning on a fiddle?

Cross tuning, common in old-time music, retunes the strings to create a fuller, droning sound. A popular example is A, E, A, E. Standard G, D, A, E is the tuning to start from and the one this tuner uses.

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