Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Tremolo Rate Calculator

Convert a musical note value and BPM into the exact tremolo LFO rate in Hz needed to sync amplitude modulation to your track's tempo. Ideal for guitarists, keyboardists, and producers setting hardware or software tremolo effects.

Track BPM (BPM)

Note Rate

Fill in the required fields to see your result.

Music

EQ Frequency Calculator

Find the target frequency after shifting a center frequency by a given number of semitones or octaves. Essential for EQ matching, filter placement, and harmonic tuning in mixing and mastering.

Center Frequency (Hz)

Octaves (octaves)

Fill in the required fields to see your result.

Key differences

	Tremolo Rate Calculator	EQ Frequency Calculator
Category	Music	Music
Inputs required	2	2
Result	Tremolo Rate (Hz)	Target Frequency (Hz)
What it does	Convert a musical note value and BPM into the exact tremolo LFO rate in Hz needed to sync amplitude modulation to your track's tempo. Ideal for guitarists, keyboardists, and producers setting hardware or software tremolo effects.	Find the target frequency after shifting a center frequency by a given number of semitones or octaves. Essential for EQ matching, filter placement, and harmonic tuning in mixing and mastering.