Mandolin tuner
A microphone mandolin tuner. A mandolin is tuned like a violin, G–D–A–E, but in pairs: tune both strings of each course to the same note.
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String notes: Standard (G D A E)
At A = 440 Hz. The tuner measures each plucked string against these frequencies.
| String | Note | Frequency |
|---|---|---|
| 4. | G3 | 196.0 Hz |
| 3. | D4 | 293.7 Hz |
| 2. | A4 | 440.0 Hz |
| 1. | E5 | 659.3 Hz |
How to tune
- Press “Start tuning” and allow the microphone. The sound stays in your browser and is never uploaded.
- Pick the strings of a pair one at a time, not together. Two slightly different strings beat against each other and the needle wobbles.
- Once one string of a pair is in tune, you can match the other by ear: when the beating stops, they're the same.
- When the needle sits in the green middle zone (±3 cents), the string is in tune. Anything within 5 cents sounds in tune to the ear.
All tuned? Here are the chords, with shapes and sound →
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Frequently asked questions
What is standard mandolin tuning?
Low to high: G – D – A – E (G3, D4, A4, E5), with two strings per note, just like a violin's notes.
Why won't the needle settle when I play a pair together?
If the two strings are slightly apart, they beat and the tuner swings between them. Pick them separately.
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