GUITAR STRING FREQUENCIES
Guitar String Frequencies for Standard and Alternate Tunings
Use exact target frequencies as a reference, while remembering that a stable musical note matters more than chasing a flickering decimal.
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- E2 82.41 Hz to E4 329.63 Hz
- Drop D and E-flat tables
- A4 = 440 Hz reference
Standard EADGBE target frequencies
From the sixth string to the first, standard guitar tuning at A4 = 440 Hz is E2 82.41 Hz, A2 110.00 Hz, D3 146.83 Hz, G3 196.00 Hz, B3 246.94 Hz and E4 329.63 Hz. Tune upward to the target when practical so the machine head settles under consistent tension.
- E2 · 82.41 Hz
- A2 · 110.00 Hz
- D3 · 146.83 Hz
- G3 · 196.00 Hz
- B3 · 246.94 Hz
- E4 · 329.63 Hz
How alternate tuning changes the numbers
Drop D changes only the sixth string to D2 73.42 Hz. Half-step-down tuning becomes E-flat2 77.78 Hz, A-flat2 103.83 Hz, D-flat3 138.59 Hz, G-flat3 185.00 Hz, B-flat3 233.08 Hz and E-flat4 311.13 Hz. A different A4 calibration shifts every target proportionally.
- Drop D sixth string · 73.42 Hz
- One semitone equals 100 cents
- 430–446 Hz calibration in the app
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Common questions
01What frequency is low E on guitar?＋
E2 is approximately 82.41 Hz when A4 is calibrated to 440 Hz.
02What frequency is Drop D?＋
The lowered sixth string is D2 at approximately 73.42 Hz.
03Why does the reading move after the attack?＋
A plucked string begins with a complex transient and settles; use the stable sustain rather than the first instant.